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Structural and Kinetic Hydrogen Sorption Properties of Zr0

In view of the variation of lattice parameter, it is easy to understand the kinetic performances of Zr 0.8 Ti 0.2 Co after ball milling. When the lattice parameter and cell volume become smaller, the occupancy of H atom in interstitial sites will become more difficult but release of H …

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  • Structural and Kinetic Hydrogen Sorption Properties of Zr0

    In view of the variation of lattice parameter, it is easy to understand the kinetic performances of Zr 0.8 Ti 0.2 Co after ball milling. When the lattice parameter and cell volume become smaller, the occupancy of H atom in interstitial sites will become more difficult but release of H …

    More Details
  • Structural Characterization and Ordering Transformation of

    The lattice parameter after 70 hours ball milling is 0.2911 nm which is nearly the same value reported by Cahn [20] for A2-type Fe 3 Al compound. So it seems that after 70 hours ball milling the A2-type Fe 3 Al intermetallic is formed. A2-type Fe 3 Al is one of the allotropies of the Fe 3 Al compound which has a disordered bcc structure. After ...

    More Details
  • Effect of BallMilling Conditions on Thermoelectric

    Effect of Ball-Milling Conditions on Thermoelectric Properties of Polycrystalline CuGaTe 2 Masaya Kumagai 1,+2, Ken Kurosaki , Yuji Ohishi1, Hiroaki Muta1 and Shinsuke Yamanaka1,2 1Graduate School of Engineering, Osaka University, Suita 565-0871, Japan 2Research Institute of Nuclear Engineering, University of Fukui, Tsuruga 914-0055, Japan CuGaTe 2 has a large thermoelectric (TE) figure of ...

    More Details
  • The nanostructure and hydrogenation reaction of Mg50Co50

    successfully synthesized by ball-milling in our group [8]. However, these alloys did not absorb and desorb hydrogen at ambient temperature and pressure. We have proposed from our experience on Ti-based BCC alloys [6] that there is a relation between the lattice parameter of the BCC lattice and hydrogen equilibrium pressure. We also proposed that it

    More Details
  • Comparative study of SPEX and planetary milling methods

    The crystallite size, lattice strain, and lattice parameter have been calculated from the XRD data followed by an investigation on the powder morphology and particle size by FESEM. It has been indicated that the higher milling speed in the SPEX milling method leads to a higher milling …

    More Details
  • Effects of Milling Time and Impact Force on the Mutual

    The effects of milling parameters such as balls diameters and ball milling speed defined by the vials rotation speed (ω ... 30 powder reduced from 100 μm at 0 h to 32.8 nm at 10 h of milling with increase in lattice strain of 0.43% at 10 h of milling. The lattice parameter of tungsten shows initial expansion of lattice upto 0.56% at 5 h of ...

    More Details
  • manual grinding SBM short ball milling LBM long ball

    XRD-derived phase contents, lattice parameters, and average crystallite sizes. MG – manual grinding, SBM – short ball milling, LBM – long ball milling. n/d – not determined. Table S2. Positions of deconvoluted peaks in micro-Raman determinations for GaAs substrates and nitrided products. MG – manual grinding, LBM – long ball milling ...

    More Details
  • Synthesis of SnSb Te Microplatelets by Highenergy Ball

    Microplatelets by High-Energy Ball Milling 4. Conclusion SnSb 2 Te 4-based microplatelets were successfully synthesized via mechanochemical activation using 2 h high-energy ball milling in air. It was observed by X-ray diffraction that severe plastic deformation decrease the a lattice parameter as a function of milling

    More Details
  • HG H R SRZGHUV Grain refinement and Lattice

    The Halder-Wagner approach [4] was used to fix the structural parameters at selected milling times (Figure 2). During milling the lattice parameter of Fe matrix increases gradually from 0.2856 nm to 0.2862 nm showing that Fe and Co form a solid solution. The average grain size decreases from 52.53 nm (pure Fe) to reach 15.59 nm after 60h milling

    More Details
  • Evolution of microstructural and mechanical properties of

    decreased. It seems that this feature is related to parameters such as increase of crystallite size, enhancement of lattice ordering, change in density of defects and impurities and nonstoichiometric effects. Keywords: Heusler alloys, ball milling, X-ray diffraction, microstructural. *Corresponding author.

    More Details
  • Effect of Ball Milling Time on Critical Current Density of

    The effect of ball milling time (BMT) on the physical parameters is investigated here to get the optimum time of BM in order to have better JC(H,T)in MgB2. Lattice parameters, critical current ...

    More Details
  • Effect of Li Addition on Synthesis of MgTi BCC Alloys by

    Effect of Li Addition on Synthesis of Mg-Ti BCC Alloys by means of Ball Milling Kohta Asano, Hirotoshi Enoki and Etsuo Akiba National Institute of Advanced Industrial Science and Technology (AIST), AIST Central-5, Tsukuba 305-8565, Japan ... lattice parameter of Mg decreases by Li addition because an

    More Details
  • Effects of Ball Milling and Sintering on Alumina and

    Reduction of crystallite size during high-energy ball milling is independent of boron composition in the range of compositions that were investigated. The lattice parameters of the main alumina phase as a function of milling time did not follow the same trends shown in literature, indicating any impurities within the literature samples affected ...

    More Details
  • Department of Metallurgical Engg. IT Banaras Hindu

    which is a superstructure of the B2 phase. The lattice parameters of the superstructure phase and B2 phase are interrelated as asc = √ 2ap, where ap is the lattice parameter of the B2 phase which is a parent phase. The formation of the superstructure due to the ball milling and subsequent annealing has been observed for the first time in Al ...

    More Details
  • Structural Characterization and Ordering Transformation of

    The lattice parameter after 70 hours ball milling is 0.2911 nm which is nearly the same value reported by Cahn [20] for A2-type Fe 3 Al compound. So it seems that after 70 hours ball milling the A2-type Fe 3 Al intermetallic is formed. A2-type Fe 3 Al is one of the allotropies of the Fe 3 Al compound which has a disordered bcc structure. After ...

    More Details
  • CrMo solid solutions forced by highenergy ball milling

    Milling is observed to force the mixing of the immiscible bcc elements Cr and Mo into solid solutions. The lattice parameter of these solid solutions, measured by X-ray diffraction (XRD), displays the expected positive deviation from Vegards law. These deviations are compared to the ones predicted by Eshelbys inclusion model for dilute alloys.

    More Details
  • HG H R SRZGHUV Grain refinement and Lattice

    The Halder-Wagner approach [4] was used to fix the structural parameters at selected milling times (Figure 2). During milling the lattice parameter of Fe matrix increases gradually from 0.2856 nm to 0.2862 nm showing that Fe and Co form a solid solution. The average grain size decreases from 52.53 nm (pure Fe) to reach 15.59 nm after 60h milling

    More Details
  • manual grinding SBM short ball milling LBM long ball

    XRD-derived phase contents, lattice parameters, and average crystallite sizes. MG – manual grinding, SBM – short ball milling, LBM – long ball milling. n/d – not determined. Table S2. Positions of deconvoluted peaks in micro-Raman determinations for GaAs substrates and nitrided products. MG – manual grinding, LBM – long ball milling ...

    More Details
  • The nanostructure and hydrogenation reaction of Mg50Co50

    successfully synthesized by ball-milling in our group [8]. However, these alloys did not absorb and desorb hydrogen at ambient temperature and pressure. We have proposed from our experience on Ti-based BCC alloys [6] that there is a relation between the lattice parameter of the BCC lattice and hydrogen equilibrium pressure. We also proposed that it

    More Details
  • Structural and magnetic properties of La D MnO D = Ca Sr

    of magnetic oxides [37-42]. Ball milling is one of the important commonly used methods due to its simplicity and flexibility of controlling the processing parameters in producing a wide range of materials [43-45]. In this work, we report on the ball-milling synthesis, and structural and magnetic studies of La 0.67 D 0.33 MnO 3 (D = Ca, Sr, Ba ...

    More Details
  • The formation of ternary compound Fe3Mo3C by ball milling

    Ball milling of Mo in nitrogen and ammonia gases has been studied. After heating, the formation of an intriguing ternary compound, Fe3Mo3C1−x, was observed as a result of Fe (and C) contamination from the milling apparatus. For a comparison, mechanical alloying of Fe–Mo–C powders with a stoichiometric composition of Fe3Mo3C was also performed and again an Fe–Mo–C alloy was obtained ...

    More Details
  • Influence of Milling Time on the Microstructure and

    milling time the value of lattice parameter ncreased to approach the value of pure Al lattice parameter which is 4.0496 Å [22]. The slight increase of the lattice parameter interpreted to the formation of antisite-atom pairs [18]. decreases with increasin 3-2. Grain size and dislocation parameters

    More Details
  • Effect of milling time and addition of alumina powder on

    parameter [19]. Results show that the lattice parameter increased immediately after 5 h of milling and then it decreased after further milling, for both the monolithic and the composite powder ...

    More Details
  • Effects of Ball Milling and Sintering on Alumina and

    Reduction of crystallite size during high-energy ball milling is independent of boron composition in the range of compositions that were investigated. The lattice parameters of the main alumina phase as a function of milling time did not follow the same trends shown in literature, indicating any impurities within the literature samples affected ...

    More Details
  • Effect of Cr to Fe on the Solid Solubility Lattice

    -Fe-Cr phase was investigated using formula Fe80Cr20. Ball milling process and ultrasonic technique is successfully done to develop solid solubility and improve homogenous, respectively. However, the effect of the Cr to Fe powder is not complete investigated using combination of its process. Ball milling is conducted by milling time of 60 hours and ultrasonic technique were carried out at ...

    More Details
  • Compressive deformation study on bimodal AA 4032 alloy

    parameter of AA 4032 powders during milling. The lattice parameter of Al does not change considerably in the initial milling hours. At the end of 5th hour milling, the lattice parameter decreases which is due to the dissolution of Si, Cu and Ni atoms into the aluminium matrix during ball milling. The atomic radii of Si, Cu and Ni are 1.17, 1.28 ...

    More Details
  • Mechanical Milling: a Top Down Approach for the Synthesis

    The solid solution formation was detected by measurement of precise lattice parameters for Si and Ge as a function of milling time. The lattice parameters of Si and Ge move towards each other with increasing milling time until they merge to a single value, which is identical to that for the solid solution of this composition (Si-28 at % Ge ...

    More Details
  • Mechanical alloying of a TiCTiN ceramic system

    mill at a ball-to-powder weight ratio of 20:1. High angle XRD peaks were used to calculate the lattice parameters before and after milling for different milling times. The lattice parameter measurements suggested that Ti(C,N) solid solution was formed during the …

    More Details
  • Structural and Kinetic Hydrogen Sorption Properties of Zr0

    In view of the variation of lattice parameter, it is easy to understand the kinetic performances of Zr 0.8 Ti 0.2 Co after ball milling. When the lattice parameter and cell volume become smaller, the occupancy of H atom in interstitial sites will become more difficult but release of H …

    More Details
  • Structural Characterization and Ordering Transformation of

    The lattice parameter after 70 hours ball milling is 0.2911 nm which is nearly the same value reported by Cahn [20] for A2-type Fe 3 Al compound. So it seems that after 70 hours ball milling the A2-type Fe 3 Al intermetallic is formed. A2-type Fe 3 Al is one of the allotropies of the Fe 3 Al compound which has a disordered bcc structure. After ...

    More Details
  • Effect of BallMilling Conditions on Thermoelectric

    Effect of Ball-Milling Conditions on Thermoelectric Properties of Polycrystalline CuGaTe 2 Masaya Kumagai 1,+2, Ken Kurosaki , Yuji Ohishi1, Hiroaki Muta1 and Shinsuke Yamanaka1,2 1Graduate School of Engineering, Osaka University, Suita 565-0871, Japan 2Research Institute of Nuclear Engineering, University of Fukui, Tsuruga 914-0055, Japan CuGaTe 2 has a large thermoelectric (TE) figure of ...

    More Details
  • The nanostructure and hydrogenation reaction of Mg50Co50

    successfully synthesized by ball-milling in our group [8]. However, these alloys did not absorb and desorb hydrogen at ambient temperature and pressure. We have proposed from our experience on Ti-based BCC alloys [6] that there is a relation between the lattice parameter of the BCC lattice and hydrogen equilibrium pressure. We also proposed that it

    More Details
  • Comparative study of SPEX and planetary milling methods

    The crystallite size, lattice strain, and lattice parameter have been calculated from the XRD data followed by an investigation on the powder morphology and particle size by FESEM. It has been indicated that the higher milling speed in the SPEX milling method leads to a higher milling …

    More Details
  • Effects of Milling Time and Impact Force on the Mutual

    The effects of milling parameters such as balls diameters and ball milling speed defined by the vials rotation speed (ω ... 30 powder reduced from 100 μm at 0 h to 32.8 nm at 10 h of milling with increase in lattice strain of 0.43% at 10 h of milling. The lattice parameter of tungsten shows initial expansion of lattice upto 0.56% at 5 h of ...

    More Details
  • manual grinding SBM short ball milling LBM long ball

    XRD-derived phase contents, lattice parameters, and average crystallite sizes. MG – manual grinding, SBM – short ball milling, LBM – long ball milling. n/d – not determined. Table S2. Positions of deconvoluted peaks in micro-Raman determinations for GaAs substrates and nitrided products. MG – manual grinding, LBM – long ball milling ...

    More Details
  • Synthesis of SnSb Te Microplatelets by Highenergy Ball

    Microplatelets by High-Energy Ball Milling 4. Conclusion SnSb 2 Te 4-based microplatelets were successfully synthesized via mechanochemical activation using 2 h high-energy ball milling in air. It was observed by X-ray diffraction that severe plastic deformation decrease the a lattice parameter as a function of milling

    More Details
  • HG H R SRZGHUV Grain refinement and Lattice

    The Halder-Wagner approach [4] was used to fix the structural parameters at selected milling times (Figure 2). During milling the lattice parameter of Fe matrix increases gradually from 0.2856 nm to 0.2862 nm showing that Fe and Co form a solid solution. The average grain size decreases from 52.53 nm (pure Fe) to reach 15.59 nm after 60h milling

    More Details
  • Evolution of microstructural and mechanical properties of

    decreased. It seems that this feature is related to parameters such as increase of crystallite size, enhancement of lattice ordering, change in density of defects and impurities and nonstoichiometric effects. Keywords: Heusler alloys, ball milling, X-ray diffraction, microstructural. *Corresponding author.

    More Details
  • Effect of Ball Milling Time on Critical Current Density of

    The effect of ball milling time (BMT) on the physical parameters is investigated here to get the optimum time of BM in order to have better JC(H,T)in MgB2. Lattice parameters, critical current ...

    More Details
  • Effect of Li Addition on Synthesis of MgTi BCC Alloys by

    Effect of Li Addition on Synthesis of Mg-Ti BCC Alloys by means of Ball Milling Kohta Asano, Hirotoshi Enoki and Etsuo Akiba National Institute of Advanced Industrial Science and Technology (AIST), AIST Central-5, Tsukuba 305-8565, Japan ... lattice parameter of Mg decreases by Li addition because an

    More Details
  • Effects of Ball Milling and Sintering on Alumina and

    Reduction of crystallite size during high-energy ball milling is independent of boron composition in the range of compositions that were investigated. The lattice parameters of the main alumina phase as a function of milling time did not follow the same trends shown in literature, indicating any impurities within the literature samples affected ...

    More Details
  • Department of Metallurgical Engg. IT Banaras Hindu

    which is a superstructure of the B2 phase. The lattice parameters of the superstructure phase and B2 phase are interrelated as asc = √ 2ap, where ap is the lattice parameter of the B2 phase which is a parent phase. The formation of the superstructure due to the ball milling and subsequent annealing has been observed for the first time in Al ...

    More Details
  • Structural Characterization and Ordering Transformation of

    The lattice parameter after 70 hours ball milling is 0.2911 nm which is nearly the same value reported by Cahn [20] for A2-type Fe 3 Al compound. So it seems that after 70 hours ball milling the A2-type Fe 3 Al intermetallic is formed. A2-type Fe 3 Al is one of the allotropies of the Fe 3 Al compound which has a disordered bcc structure. After ...

    More Details
  • CrMo solid solutions forced by highenergy ball milling

    Milling is observed to force the mixing of the immiscible bcc elements Cr and Mo into solid solutions. The lattice parameter of these solid solutions, measured by X-ray diffraction (XRD), displays the expected positive deviation from Vegards law. These deviations are compared to the ones predicted by Eshelbys inclusion model for dilute alloys.

    More Details
  • HG H R SRZGHUV Grain refinement and Lattice

    The Halder-Wagner approach [4] was used to fix the structural parameters at selected milling times (Figure 2). During milling the lattice parameter of Fe matrix increases gradually from 0.2856 nm to 0.2862 nm showing that Fe and Co form a solid solution. The average grain size decreases from 52.53 nm (pure Fe) to reach 15.59 nm after 60h milling

    More Details
  • manual grinding SBM short ball milling LBM long ball

    XRD-derived phase contents, lattice parameters, and average crystallite sizes. MG – manual grinding, SBM – short ball milling, LBM – long ball milling. n/d – not determined. Table S2. Positions of deconvoluted peaks in micro-Raman determinations for GaAs substrates and nitrided products. MG – manual grinding, LBM – long ball milling ...

    More Details
  • The nanostructure and hydrogenation reaction of Mg50Co50

    successfully synthesized by ball-milling in our group [8]. However, these alloys did not absorb and desorb hydrogen at ambient temperature and pressure. We have proposed from our experience on Ti-based BCC alloys [6] that there is a relation between the lattice parameter of the BCC lattice and hydrogen equilibrium pressure. We also proposed that it

    More Details
  • Structural and magnetic properties of La D MnO D = Ca Sr

    of magnetic oxides [37-42]. Ball milling is one of the important commonly used methods due to its simplicity and flexibility of controlling the processing parameters in producing a wide range of materials [43-45]. In this work, we report on the ball-milling synthesis, and structural and magnetic studies of La 0.67 D 0.33 MnO 3 (D = Ca, Sr, Ba ...

    More Details
  • The formation of ternary compound Fe3Mo3C by ball milling

    Ball milling of Mo in nitrogen and ammonia gases has been studied. After heating, the formation of an intriguing ternary compound, Fe3Mo3C1−x, was observed as a result of Fe (and C) contamination from the milling apparatus. For a comparison, mechanical alloying of Fe–Mo–C powders with a stoichiometric composition of Fe3Mo3C was also performed and again an Fe–Mo–C alloy was obtained ...

    More Details
  • Influence of Milling Time on the Microstructure and

    milling time the value of lattice parameter ncreased to approach the value of pure Al lattice parameter which is 4.0496 Å [22]. The slight increase of the lattice parameter interpreted to the formation of antisite-atom pairs [18]. decreases with increasin 3-2. Grain size and dislocation parameters

    More Details
  • Effect of milling time and addition of alumina powder on

    parameter [19]. Results show that the lattice parameter increased immediately after 5 h of milling and then it decreased after further milling, for both the monolithic and the composite powder ...

    More Details
  • Effects of Ball Milling and Sintering on Alumina and

    Reduction of crystallite size during high-energy ball milling is independent of boron composition in the range of compositions that were investigated. The lattice parameters of the main alumina phase as a function of milling time did not follow the same trends shown in literature, indicating any impurities within the literature samples affected ...

    More Details
  • Effect of Cr to Fe on the Solid Solubility Lattice

    -Fe-Cr phase was investigated using formula Fe80Cr20. Ball milling process and ultrasonic technique is successfully done to develop solid solubility and improve homogenous, respectively. However, the effect of the Cr to Fe powder is not complete investigated using combination of its process. Ball milling is conducted by milling time of 60 hours and ultrasonic technique were carried out at ...

    More Details
  • Compressive deformation study on bimodal AA 4032 alloy

    parameter of AA 4032 powders during milling. The lattice parameter of Al does not change considerably in the initial milling hours. At the end of 5th hour milling, the lattice parameter decreases which is due to the dissolution of Si, Cu and Ni atoms into the aluminium matrix during ball milling. The atomic radii of Si, Cu and Ni are 1.17, 1.28 ...

    More Details
  • Mechanical Milling: a Top Down Approach for the Synthesis

    The solid solution formation was detected by measurement of precise lattice parameters for Si and Ge as a function of milling time. The lattice parameters of Si and Ge move towards each other with increasing milling time until they merge to a single value, which is identical to that for the solid solution of this composition (Si-28 at % Ge ...

    More Details
  • Mechanical alloying of a TiCTiN ceramic system

    mill at a ball-to-powder weight ratio of 20:1. High angle XRD peaks were used to calculate the lattice parameters before and after milling for different milling times. The lattice parameter measurements suggested that Ti(C,N) solid solution was formed during the …

    More Details
  • Structural and Kinetic Hydrogen Sorption Properties of Zr0

    In view of the variation of lattice parameter, it is easy to understand the kinetic performances of Zr 0.8 Ti 0.2 Co after ball milling. When the lattice parameter and cell volume become smaller, the occupancy of H atom in interstitial sites will become more difficult but release of H …

    More Details
  • Structural Characterization and Ordering Transformation of

    The lattice parameter after 70 hours ball milling is 0.2911 nm which is nearly the same value reported by Cahn [20] for A2-type Fe 3 Al compound. So it seems that after 70 hours ball milling the A2-type Fe 3 Al intermetallic is formed. A2-type Fe 3 Al is one of the allotropies of the Fe 3 Al compound which has a disordered bcc structure. After ...

    More Details
  • Effect of BallMilling Conditions on Thermoelectric

    Effect of Ball-Milling Conditions on Thermoelectric Properties of Polycrystalline CuGaTe 2 Masaya Kumagai 1,+2, Ken Kurosaki , Yuji Ohishi1, Hiroaki Muta1 and Shinsuke Yamanaka1,2 1Graduate School of Engineering, Osaka University, Suita 565-0871, Japan 2Research Institute of Nuclear Engineering, University of Fukui, Tsuruga 914-0055, Japan CuGaTe 2 has a large thermoelectric (TE) figure of ...

    More Details
  • The nanostructure and hydrogenation reaction of Mg50Co50

    successfully synthesized by ball-milling in our group [8]. However, these alloys did not absorb and desorb hydrogen at ambient temperature and pressure. We have proposed from our experience on Ti-based BCC alloys [6] that there is a relation between the lattice parameter of the BCC lattice and hydrogen equilibrium pressure. We also proposed that it

    More Details
  • Comparative study of SPEX and planetary milling methods

    The crystallite size, lattice strain, and lattice parameter have been calculated from the XRD data followed by an investigation on the powder morphology and particle size by FESEM. It has been indicated that the higher milling speed in the SPEX milling method leads to a higher milling …

    More Details
  • Effects of Milling Time and Impact Force on the Mutual

    The effects of milling parameters such as balls diameters and ball milling speed defined by the vials rotation speed (ω ... 30 powder reduced from 100 μm at 0 h to 32.8 nm at 10 h of milling with increase in lattice strain of 0.43% at 10 h of milling. The lattice parameter of tungsten shows initial expansion of lattice upto 0.56% at 5 h of ...

    More Details
  • manual grinding SBM short ball milling LBM long ball

    XRD-derived phase contents, lattice parameters, and average crystallite sizes. MG – manual grinding, SBM – short ball milling, LBM – long ball milling. n/d – not determined. Table S2. Positions of deconvoluted peaks in micro-Raman determinations for GaAs substrates and nitrided products. MG – manual grinding, LBM – long ball milling ...

    More Details
  • Synthesis of SnSb Te Microplatelets by Highenergy Ball

    Microplatelets by High-Energy Ball Milling 4. Conclusion SnSb 2 Te 4-based microplatelets were successfully synthesized via mechanochemical activation using 2 h high-energy ball milling in air. It was observed by X-ray diffraction that severe plastic deformation decrease the a lattice parameter as a function of milling

    More Details
  • HG H R SRZGHUV Grain refinement and Lattice

    The Halder-Wagner approach [4] was used to fix the structural parameters at selected milling times (Figure 2). During milling the lattice parameter of Fe matrix increases gradually from 0.2856 nm to 0.2862 nm showing that Fe and Co form a solid solution. The average grain size decreases from 52.53 nm (pure Fe) to reach 15.59 nm after 60h milling

    More Details
  • Evolution of microstructural and mechanical properties of

    decreased. It seems that this feature is related to parameters such as increase of crystallite size, enhancement of lattice ordering, change in density of defects and impurities and nonstoichiometric effects. Keywords: Heusler alloys, ball milling, X-ray diffraction, microstructural. *Corresponding author.

    More Details
  • Effect of Ball Milling Time on Critical Current Density of

    The effect of ball milling time (BMT) on the physical parameters is investigated here to get the optimum time of BM in order to have better JC(H,T)in MgB2. Lattice parameters, critical current ...

    More Details
  • Effect of Li Addition on Synthesis of MgTi BCC Alloys by

    Effect of Li Addition on Synthesis of Mg-Ti BCC Alloys by means of Ball Milling Kohta Asano, Hirotoshi Enoki and Etsuo Akiba National Institute of Advanced Industrial Science and Technology (AIST), AIST Central-5, Tsukuba 305-8565, Japan ... lattice parameter of Mg decreases by Li addition because an

    More Details
  • Effects of Ball Milling and Sintering on Alumina and

    Reduction of crystallite size during high-energy ball milling is independent of boron composition in the range of compositions that were investigated. The lattice parameters of the main alumina phase as a function of milling time did not follow the same trends shown in literature, indicating any impurities within the literature samples affected ...

    More Details
  • Department of Metallurgical Engg. IT Banaras Hindu

    which is a superstructure of the B2 phase. The lattice parameters of the superstructure phase and B2 phase are interrelated as asc = √ 2ap, where ap is the lattice parameter of the B2 phase which is a parent phase. The formation of the superstructure due to the ball milling and subsequent annealing has been observed for the first time in Al ...

    More Details
  • Structural Characterization and Ordering Transformation of

    The lattice parameter after 70 hours ball milling is 0.2911 nm which is nearly the same value reported by Cahn [20] for A2-type Fe 3 Al compound. So it seems that after 70 hours ball milling the A2-type Fe 3 Al intermetallic is formed. A2-type Fe 3 Al is one of the allotropies of the Fe 3 Al compound which has a disordered bcc structure. After ...

    More Details
  • CrMo solid solutions forced by highenergy ball milling

    Milling is observed to force the mixing of the immiscible bcc elements Cr and Mo into solid solutions. The lattice parameter of these solid solutions, measured by X-ray diffraction (XRD), displays the expected positive deviation from Vegards law. These deviations are compared to the ones predicted by Eshelbys inclusion model for dilute alloys.

    More Details
  • HG H R SRZGHUV Grain refinement and Lattice

    The Halder-Wagner approach [4] was used to fix the structural parameters at selected milling times (Figure 2). During milling the lattice parameter of Fe matrix increases gradually from 0.2856 nm to 0.2862 nm showing that Fe and Co form a solid solution. The average grain size decreases from 52.53 nm (pure Fe) to reach 15.59 nm after 60h milling

    More Details
  • manual grinding SBM short ball milling LBM long ball

    XRD-derived phase contents, lattice parameters, and average crystallite sizes. MG – manual grinding, SBM – short ball milling, LBM – long ball milling. n/d – not determined. Table S2. Positions of deconvoluted peaks in micro-Raman determinations for GaAs substrates and nitrided products. MG – manual grinding, LBM – long ball milling ...

    More Details
  • The nanostructure and hydrogenation reaction of Mg50Co50

    successfully synthesized by ball-milling in our group [8]. However, these alloys did not absorb and desorb hydrogen at ambient temperature and pressure. We have proposed from our experience on Ti-based BCC alloys [6] that there is a relation between the lattice parameter of the BCC lattice and hydrogen equilibrium pressure. We also proposed that it

    More Details
  • Structural and magnetic properties of La D MnO D = Ca Sr

    of magnetic oxides [37-42]. Ball milling is one of the important commonly used methods due to its simplicity and flexibility of controlling the processing parameters in producing a wide range of materials [43-45]. In this work, we report on the ball-milling synthesis, and structural and magnetic studies of La 0.67 D 0.33 MnO 3 (D = Ca, Sr, Ba ...

    More Details
  • The formation of ternary compound Fe3Mo3C by ball milling

    Ball milling of Mo in nitrogen and ammonia gases has been studied. After heating, the formation of an intriguing ternary compound, Fe3Mo3C1−x, was observed as a result of Fe (and C) contamination from the milling apparatus. For a comparison, mechanical alloying of Fe–Mo–C powders with a stoichiometric composition of Fe3Mo3C was also performed and again an Fe–Mo–C alloy was obtained ...

    More Details
  • Influence of Milling Time on the Microstructure and

    milling time the value of lattice parameter ncreased to approach the value of pure Al lattice parameter which is 4.0496 Å [22]. The slight increase of the lattice parameter interpreted to the formation of antisite-atom pairs [18]. decreases with increasin 3-2. Grain size and dislocation parameters

    More Details
  • Effect of milling time and addition of alumina powder on

    parameter [19]. Results show that the lattice parameter increased immediately after 5 h of milling and then it decreased after further milling, for both the monolithic and the composite powder ...

    More Details
  • Effects of Ball Milling and Sintering on Alumina and

    Reduction of crystallite size during high-energy ball milling is independent of boron composition in the range of compositions that were investigated. The lattice parameters of the main alumina phase as a function of milling time did not follow the same trends shown in literature, indicating any impurities within the literature samples affected ...

    More Details
  • Effect of Cr to Fe on the Solid Solubility Lattice

    -Fe-Cr phase was investigated using formula Fe80Cr20. Ball milling process and ultrasonic technique is successfully done to develop solid solubility and improve homogenous, respectively. However, the effect of the Cr to Fe powder is not complete investigated using combination of its process. Ball milling is conducted by milling time of 60 hours and ultrasonic technique were carried out at ...

    More Details
  • Compressive deformation study on bimodal AA 4032 alloy

    parameter of AA 4032 powders during milling. The lattice parameter of Al does not change considerably in the initial milling hours. At the end of 5th hour milling, the lattice parameter decreases which is due to the dissolution of Si, Cu and Ni atoms into the aluminium matrix during ball milling. The atomic radii of Si, Cu and Ni are 1.17, 1.28 ...

    More Details
  • Mechanical Milling: a Top Down Approach for the Synthesis

    The solid solution formation was detected by measurement of precise lattice parameters for Si and Ge as a function of milling time. The lattice parameters of Si and Ge move towards each other with increasing milling time until they merge to a single value, which is identical to that for the solid solution of this composition (Si-28 at % Ge ...

    More Details
  • Mechanical alloying of a TiCTiN ceramic system

    mill at a ball-to-powder weight ratio of 20:1. High angle XRD peaks were used to calculate the lattice parameters before and after milling for different milling times. The lattice parameter measurements suggested that Ti(C,N) solid solution was formed during the …

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  • Structural and Kinetic Hydrogen Sorption Properties of Zr0

    In view of the variation of lattice parameter, it is easy to understand the kinetic performances of Zr 0.8 Ti 0.2 Co after ball milling. When the lattice parameter and cell volume become smaller, the occupancy of H atom in interstitial sites will become more difficult but release of H …

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  • Structural Characterization and Ordering Transformation of

    The lattice parameter after 70 hours ball milling is 0.2911 nm which is nearly the same value reported by Cahn [20] for A2-type Fe 3 Al compound. So it seems that after 70 hours ball milling the A2-type Fe 3 Al intermetallic is formed. A2-type Fe 3 Al is one of the allotropies of the Fe 3 Al compound which has a disordered bcc structure. After ...

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  • Effect of BallMilling Conditions on Thermoelectric

    Effect of Ball-Milling Conditions on Thermoelectric Properties of Polycrystalline CuGaTe 2 Masaya Kumagai 1,+2, Ken Kurosaki , Yuji Ohishi1, Hiroaki Muta1 and Shinsuke Yamanaka1,2 1Graduate School of Engineering, Osaka University, Suita 565-0871, Japan 2Research Institute of Nuclear Engineering, University of Fukui, Tsuruga 914-0055, Japan CuGaTe 2 has a large thermoelectric (TE) figure of ...

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  • The nanostructure and hydrogenation reaction of Mg50Co50

    successfully synthesized by ball-milling in our group [8]. However, these alloys did not absorb and desorb hydrogen at ambient temperature and pressure. We have proposed from our experience on Ti-based BCC alloys [6] that there is a relation between the lattice parameter of the BCC lattice and hydrogen equilibrium pressure. We also proposed that it

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  • Comparative study of SPEX and planetary milling methods

    The crystallite size, lattice strain, and lattice parameter have been calculated from the XRD data followed by an investigation on the powder morphology and particle size by FESEM. It has been indicated that the higher milling speed in the SPEX milling method leads to a higher milling …

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  • Effects of Milling Time and Impact Force on the Mutual

    The effects of milling parameters such as balls diameters and ball milling speed defined by the vials rotation speed (ω ... 30 powder reduced from 100 μm at 0 h to 32.8 nm at 10 h of milling with increase in lattice strain of 0.43% at 10 h of milling. The lattice parameter of tungsten shows initial expansion of lattice upto 0.56% at 5 h of ...

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  • manual grinding SBM short ball milling LBM long ball

    XRD-derived phase contents, lattice parameters, and average crystallite sizes. MG – manual grinding, SBM – short ball milling, LBM – long ball milling. n/d – not determined. Table S2. Positions of deconvoluted peaks in micro-Raman determinations for GaAs substrates and nitrided products. MG – manual grinding, LBM – long ball milling ...

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  • Synthesis of SnSb Te Microplatelets by Highenergy Ball

    Microplatelets by High-Energy Ball Milling 4. Conclusion SnSb 2 Te 4-based microplatelets were successfully synthesized via mechanochemical activation using 2 h high-energy ball milling in air. It was observed by X-ray diffraction that severe plastic deformation decrease the a lattice parameter as a function of milling

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  • HG H R SRZGHUV Grain refinement and Lattice

    The Halder-Wagner approach [4] was used to fix the structural parameters at selected milling times (Figure 2). During milling the lattice parameter of Fe matrix increases gradually from 0.2856 nm to 0.2862 nm showing that Fe and Co form a solid solution. The average grain size decreases from 52.53 nm (pure Fe) to reach 15.59 nm after 60h milling

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  • Evolution of microstructural and mechanical properties of

    decreased. It seems that this feature is related to parameters such as increase of crystallite size, enhancement of lattice ordering, change in density of defects and impurities and nonstoichiometric effects. Keywords: Heusler alloys, ball milling, X-ray diffraction, microstructural. *Corresponding author.

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  • Effect of Ball Milling Time on Critical Current Density of

    The effect of ball milling time (BMT) on the physical parameters is investigated here to get the optimum time of BM in order to have better JC(H,T)in MgB2. Lattice parameters, critical current ...

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  • Effect of Li Addition on Synthesis of MgTi BCC Alloys by

    Effect of Li Addition on Synthesis of Mg-Ti BCC Alloys by means of Ball Milling Kohta Asano, Hirotoshi Enoki and Etsuo Akiba National Institute of Advanced Industrial Science and Technology (AIST), AIST Central-5, Tsukuba 305-8565, Japan ... lattice parameter of Mg decreases by Li addition because an

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  • Effects of Ball Milling and Sintering on Alumina and

    Reduction of crystallite size during high-energy ball milling is independent of boron composition in the range of compositions that were investigated. The lattice parameters of the main alumina phase as a function of milling time did not follow the same trends shown in literature, indicating any impurities within the literature samples affected ...

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  • Department of Metallurgical Engg. IT Banaras Hindu

    which is a superstructure of the B2 phase. The lattice parameters of the superstructure phase and B2 phase are interrelated as asc = √ 2ap, where ap is the lattice parameter of the B2 phase which is a parent phase. The formation of the superstructure due to the ball milling and subsequent annealing has been observed for the first time in Al ...

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  • Structural Characterization and Ordering Transformation of

    The lattice parameter after 70 hours ball milling is 0.2911 nm which is nearly the same value reported by Cahn [20] for A2-type Fe 3 Al compound. So it seems that after 70 hours ball milling the A2-type Fe 3 Al intermetallic is formed. A2-type Fe 3 Al is one of the allotropies of the Fe 3 Al compound which has a disordered bcc structure. After ...

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  • CrMo solid solutions forced by highenergy ball milling

    Milling is observed to force the mixing of the immiscible bcc elements Cr and Mo into solid solutions. The lattice parameter of these solid solutions, measured by X-ray diffraction (XRD), displays the expected positive deviation from Vegards law. These deviations are compared to the ones predicted by Eshelbys inclusion model for dilute alloys.

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  • HG H R SRZGHUV Grain refinement and Lattice

    The Halder-Wagner approach [4] was used to fix the structural parameters at selected milling times (Figure 2). During milling the lattice parameter of Fe matrix increases gradually from 0.2856 nm to 0.2862 nm showing that Fe and Co form a solid solution. The average grain size decreases from 52.53 nm (pure Fe) to reach 15.59 nm after 60h milling

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  • manual grinding SBM short ball milling LBM long ball

    XRD-derived phase contents, lattice parameters, and average crystallite sizes. MG – manual grinding, SBM – short ball milling, LBM – long ball milling. n/d – not determined. Table S2. Positions of deconvoluted peaks in micro-Raman determinations for GaAs substrates and nitrided products. MG – manual grinding, LBM – long ball milling ...

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  • The nanostructure and hydrogenation reaction of Mg50Co50

    successfully synthesized by ball-milling in our group [8]. However, these alloys did not absorb and desorb hydrogen at ambient temperature and pressure. We have proposed from our experience on Ti-based BCC alloys [6] that there is a relation between the lattice parameter of the BCC lattice and hydrogen equilibrium pressure. We also proposed that it

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  • Structural and magnetic properties of La D MnO D = Ca Sr

    of magnetic oxides [37-42]. Ball milling is one of the important commonly used methods due to its simplicity and flexibility of controlling the processing parameters in producing a wide range of materials [43-45]. In this work, we report on the ball-milling synthesis, and structural and magnetic studies of La 0.67 D 0.33 MnO 3 (D = Ca, Sr, Ba ...

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  • The formation of ternary compound Fe3Mo3C by ball milling

    Ball milling of Mo in nitrogen and ammonia gases has been studied. After heating, the formation of an intriguing ternary compound, Fe3Mo3C1−x, was observed as a result of Fe (and C) contamination from the milling apparatus. For a comparison, mechanical alloying of Fe–Mo–C powders with a stoichiometric composition of Fe3Mo3C was also performed and again an Fe–Mo–C alloy was obtained ...

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  • Influence of Milling Time on the Microstructure and

    milling time the value of lattice parameter ncreased to approach the value of pure Al lattice parameter which is 4.0496 Å [22]. The slight increase of the lattice parameter interpreted to the formation of antisite-atom pairs [18]. decreases with increasin 3-2. Grain size and dislocation parameters

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  • Effect of milling time and addition of alumina powder on

    parameter [19]. Results show that the lattice parameter increased immediately after 5 h of milling and then it decreased after further milling, for both the monolithic and the composite powder ...

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  • Effects of Ball Milling and Sintering on Alumina and

    Reduction of crystallite size during high-energy ball milling is independent of boron composition in the range of compositions that were investigated. The lattice parameters of the main alumina phase as a function of milling time did not follow the same trends shown in literature, indicating any impurities within the literature samples affected ...

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  • Effect of Cr to Fe on the Solid Solubility Lattice

    -Fe-Cr phase was investigated using formula Fe80Cr20. Ball milling process and ultrasonic technique is successfully done to develop solid solubility and improve homogenous, respectively. However, the effect of the Cr to Fe powder is not complete investigated using combination of its process. Ball milling is conducted by milling time of 60 hours and ultrasonic technique were carried out at ...

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  • Compressive deformation study on bimodal AA 4032 alloy

    parameter of AA 4032 powders during milling. The lattice parameter of Al does not change considerably in the initial milling hours. At the end of 5th hour milling, the lattice parameter decreases which is due to the dissolution of Si, Cu and Ni atoms into the aluminium matrix during ball milling. The atomic radii of Si, Cu and Ni are 1.17, 1.28 ...

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  • Mechanical Milling: a Top Down Approach for the Synthesis

    The solid solution formation was detected by measurement of precise lattice parameters for Si and Ge as a function of milling time. The lattice parameters of Si and Ge move towards each other with increasing milling time until they merge to a single value, which is identical to that for the solid solution of this composition (Si-28 at % Ge ...

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  • Mechanical alloying of a TiCTiN ceramic system

    mill at a ball-to-powder weight ratio of 20:1. High angle XRD peaks were used to calculate the lattice parameters before and after milling for different milling times. The lattice parameter measurements suggested that Ti(C,N) solid solution was formed during the …

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