Hydrogen absorption properties of Mg-Ni alloys prepared by bulk mechanical alloying

被引：0
|
作者：
Corporate R and D Center, Mitsui Mining and Smelting Co., Ltd., 1333-2 Haraichi, Ageo, Saitama 362-0021, Japan [1 ]
机构：
来源：
Metals and Materials International | 2001年 / 7卷 / 02期
关键词：
Phase transitions - Enthalpy - Isotherms - Temperature - Nickel alloys - Binary alloys - Entropy - Mechanical alloying - Magnesium alloys;
D O I：
10.1007/bf03026956
中图分类号：
学科分类号：
摘要：
The thermodynamic properties of the hydrides of Mg2-xNi (x=0-0.5) alloys produced by bulk mechanical alloying (BMA) were determined from pressure-composition (PC) isotherms for absorption over temperatures from 623 to 423 K. The vant Hoff plot for the plateau pressures of isotherms clearly indicated the existence of high and low temperature hydrides with different entropy and enthalpy for hydride formation. It was found that both the entropy and enthalpy values for the high temperature hydride were more negative than for the low temperature hydride. The phase transition temperature was 525 K for Mg2.0Ni and decreased while increasing the value of x. This allotropic transformation was well confirmed by in-situ XRD observations from RT to 673 K under hydrogen atmosphere or in vacuum.
引用
收藏
页码：169 / 173
相关论文
共 50 条
  • [31] Investigation of the Absorption Properties of the Alloys Fe-Ni and Fe-Ni-Cr Prepared by Mechanical Alloying
    Gu Shuchao
    Duan Yuping
    Duan Peng
    Wang Song
    Qiu Guoping
    Liu Yuzhe
    Journal of Electronic Materials, 2015, 44 : 2331 - 2339
  • [32] INTERACTION OF LA(CE)-MG-NI ALLOYS WITH HYDROGEN
    KOST, ME
    SHILOV, AL
    KUZNETSOV, NT
    ZHURNAL NEORGANICHESKOI KHIMII, 1988, 33 (04): : 833 - 837
  • [33] Effect of Mn on microstructure, mechanical properties, and corrosion behaviour of Mg-Ni alloys
    Patel, Sonam M.
    Rao, Vandana J.
    ENGINEERING RESEARCH EXPRESS, 2022, 4 (04):
  • [34] Hydrogen storage properties of Mg-Ni nanoparticles
    Callini, E.
    Pasquini, L.
    Jensen, T. R.
    Bonetti, E.
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2013, 38 (27) : 12207 - 12212
  • [35] EFFECT OF IMPURITIES AND AIR EXPOSURE ON HYDROGEN ABSORBING PROPERTIES OF MG-NI ALLOYS
    ISHIDO, Y
    ONO, S
    AKIBA, E
    JOURNAL OF THE LESS-COMMON METALS, 1986, 120 (02): : 163 - 169
  • [36] Structure and hydrogen absorption property of Mg2Ni-Ti alloy powders prepared by mechanical alloying
    Lin, CK
    Wang, CK
    Lin, HC
    Lee, PY
    METASTABLE, MECHANICALLY ALLOYED AND NANOCRYSTALLINE MATERIALS, 2005, 24-25 : 419 - 422
  • [37] Hydrogen absorption-desorption properties of Mg-Ca-VBCC alloy prepared by mechanical alloying
    Kondo, Toshihiko
    Sakurai, Yoji
    JOURNAL OF ALLOYS AND COMPOUNDS, 2006, 417 (1-2) : 164 - 168
  • [38] Combinatorial search for hydrogen storage alloys: Mg-Ni and Mg-Ni-Ti
    Olmez, Rabia
    Cakmak, Gulhan
    Ozturk, Tayfur
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2010, 35 (21) : 11957 - 11965
  • [39] Hydrogen storage properties of nanocomposite Mg-Ni-Cu-CrCl3 prepared by mechanical alloying
    Yu, ZX
    Liu, ZY
    Wang, ED
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 335 (1-2): : 43 - 48
  • [40] Hydrogen storage properties of nanocomposite Mg-Ni-Cu-CrC13 prepared by mechanical alloying
    Zhenxing, Yu
    Zuyan, Liu
    Erde, Wang
    Materials Science and Engineering: A, 2002, 335 (1-2) : 43 - 48
12345