Abstract

Hydride phases have been synthesized based on ZrMoV and ZrMo_1.5V_0.5 pseudobinary intermetallic compounds with a cubic structure of С15 Laves phases (sp. gr. Fd\(\bar {3}\)m (no. 227), Z = 8). The ZrMoVН_3.3 and ZrMo_1.5V_0.5Н_3.5 hydride phases are formed during hydrogen absorption. The structures of synthesized hydrides have been investigated by X-ray diffraction (XRD) and neutron diffraction analyses. It is established that the hydrogen atomic ordering in the cubic lattice of ZrMoV and ZrMo_1.5V_0.5 leads to the formation of a superstructure with a tetragonal lattice (sp. gr. I4₁/a (no. 88), Z = 4). In contrast to the hydride in ZrMoV-based deuteride, a partially ordered superstructure (sp. gr. I4₁/amd (no. 141), Z = 4) is formed. The positional parameters of the metal and hydrogen atoms are determined by neutron diffraction analysis.

中文翻译：

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基于С15Laves相的金属间化合物ZrMoV和ZrMo 1.5 V 0.5的氢化物相结构

摘要

基于ZrMoV和ZrMo氢化阶段已被合成_1.5 V _0.5伪二元金属间化合物具有立方结构С15Laves相的（比重=的Fd \（\巴{3} \）米（无227），Ž = 8） 。的ZrMoVН _3.3和ZrMo _1.5 V _0.5 Н _3.5氢化物相氢吸收过程中形成的。合成氢化物的结构已通过X射线衍射（XRD）和中子衍射分析进行了研究。确定了ZrMoV和ZrMo _1.5 V _0.5的立方晶格中的氢原子有序通向上层建筑的形成具有四方晶格（比重=我4 ₁ /一个（88号。），Ž = 4）。与在基于ZrMoV-氘化的氢化物，部分有序上层建筑（比重=我4 ₁ / AMD（没有。141），Ž = 4）被形成。通过中子衍射分析确定金属和氢原子的位置参数。