Hydrogen absorption of C14 Laves NiTiZr-NiVNb pseudo-binary alloys
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<jats:title>ABSTRACT</jats:title><jats:p>Hydrogen absorption and desorption properties of C14 Laves NiTiZr-NiVNb and NiTiZr-NiVZr pseudo-binary alloys were investigated by using the Sieverts' apparatus, XRD and the hydrogen analyzer. The hydrogen capacity and the 50% hydrogen desorption temperature, <jats:italic>T</jats:italic><jats:sub><jats:italic>d</jats:italic></jats:sub>, of the C14 Laves NiTiZr alloy is 1.5 (H/M) and 850 K, respectively. On the other hand, the hydrogen capacity of the C14 NiVNb alloy is 0.2 H/M. In the Ni(TiZr)<jats:sub><jats:italic>1−x</jats:italic></jats:sub>(VNb)<jats:sub><jats:italic>x</jats:italic></jats:sub> pseudo-binary system, the hydrogen capacity of the alloys is decreased with increasing x, but the 50% hydrogen desorption temperature is almost constant. The substitution of VNb reduces the hydrogen absorption capacity of the C14 Laves NiTiZr alloy. The hydrogen desorption temperature of Ni(Ti<jats:sub><jats:italic>1−x</jats:italic></jats:sub>V<jats:sub><jats:italic>x</jats:italic></jats:sub>)Zr alloy is reduced to 580 K without serious decrease of the hydrogen capacity with increasing x.</jats:p>
収録刊行物
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- MRS Proceedings
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MRS Proceedings 801 2003-01-01
Springer Science and Business Media LLC