摘要
对贮氢合金ZrV2 的制备工艺 ,贮氢性能 ,氢在合金中的位置和分布以及ZrV2 的超导行为研究进行了综合评述。ZrV2 是一种金属间化合物 ,它制备工艺一般采用先熔炼然后进行各种热处理的方法。ZrV2 具有许多独特的贮氢性能如吸氢量大 ,平衡压低 ,不需要活化以及吸氢后无相变等。氢在不同密度、不同温度下可分布于晶格的三种间隙中 ,低温下氢还将重新分配其在间隙中的位置形成不同的相和特殊的结构。ZrV2 还是一种超导材料 ,C15型ZrV2 的超导转变温度为Tc ～ 9K。
The preparation, hydrogen storage properties, distribulation in alloy and superconductivity of hydrogen storage alloys ZrV 2 are reviewed. ZrV 2 is an intermetallic compounds, it is normally prepared by melting Zr and V, then annealing in many ways. There are lots of excellent properties in ZrV 2 such as absorbing a great amount of hydrogen without any activation, low equilibrium pressure at room temperature, no phase transformation after absorbing hydrogen etc. Hydrogen can enter into three interstices on different hydrogen concentration and temperature. When temperature decreases, hydrogen atoms are re-anranged on the interstices and form their own structure. The C15 compound ZrV 2 is also a superconductor with transition temperature T c～9K.
出处
《金属功能材料》
CAS
2004年第4期34-37,共4页
Metallic Functional Materials
