Journal
INTERMETALLICS
Volume 32, Issue -, Pages 167-175Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2012.09.010
Keywords
Intermetallics, miscellaneous; Ternary alloy systems; Hydrogen storage; Mechanical alloying and milling
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Funding
- US Civilian Research and Development Foundation (CRDF) [UKC2-2970-LV-09]
- Office of Basic Energy Sciences, Materials Sciences and Engineering Division of the Office of Science, U.S. Department of Energy [DE-AC02-07CH11358]
- Iowa State University
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A number of ternary Mg-Ti-Ni alloys have been synthesized by high energy ball milling, followed by annealing heat treatment. On the basis of X-ray phase analysis of these alloys an isothermal section of the Mg-Ti-Ni phase diagram at 500 degrees C has been constructed. One ternary intermetallic compound with Mg3TiNi2 stoichiometry that adopts an ordered Ti2Ni-type structure has been identified. Binary cubic TiNi compound dissolves considerable amount of Mg to form a ternary phase MgxTi1-2/3xNi1-1/3x crystallizing in the CsCl-type structure and existing over the range of compositions 0 < x <= 0.5. Other binary phases do not show appreciable solubility of the third component. The hydrogenation behavior of Mg3TiNi2 compound and Mg0.5Ti0.67Ni0.83 solid solution phase has been studied. (C) 2012 Elsevier Ltd. All rights reserved.
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