Structure of the secondary phase and its effects on hydrogen-storage properties in a Ti Zr V Ni alloy
نویسندگان
چکیده
The phase structures and hydrogen storage properties of a Ti Zr V Ni alloy are studied. It is found that this alloy consists of a 0.7 0.2 0.1 matrix and a secondary phase. The matrix is a B2-type compound with bcc structure and the secondary phase is a C14-type Laves phase with hexagonal structure. This alloy electrode has a larger charge–discharge capacity than stoichiometric TiNi electrodes but shows poorer activation behaviour. Optimizing the content of secondary phase is necessary for improving the overall hydrogen-storage properties of substituted Ti–Ni system alloys. q 1998 Elsevier Science S.A. All rights reserved.
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