Crystal structure of as-cast and heat-treated Ti0.5Zr0.5(Mn1-xFex)Cr1, x=0, 0.2, 0.4

被引：11
|
作者：
Khajavi, Sakine [1 ,2 ]
Rajabi, Mohammad [1 ]
Huot, Jacques [2 ]
机构：
[1] Babol Noshirvani Univ Technol, Fac Mat & Ind Engn, POB 47148-71167,Shariati St, Babol Sar, Iran
[2] Univ Quebec Trois Rivieres, Hydrogen Res Inst, 3351 Forges, Trois Rivieres, PQ G9A 5H7, Canada
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2018年 / 767卷
关键词：
Metal hydrides; AB(2) alloys; C14 crystal structure; Microstrain; Heat treatment; Rietveld refinement; HYDROGEN STORAGE PROPERTIES; ABSORPTION; ALLOYS; MN; MICROSTRUCTURE; PRESSURE; HYDRIDES; ZR; CR;
D O I：
10.1016/j.jallcom.2018.07.111
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The crystal structure of AB2 metal hydride alloys of composition Ti(0.52)r(0.5)(Mn1-xFex)Cri, x = 0, 0.2, 0.4 in the as-cast state and after heat treatment has been investigated. Based on SEM and X-ray diffraction results, all alloys were found to be multiphase. The best fitting of Rietveld refinement shows that the two main phases of each alloy have the same hexagonal structure with closely related lattice parameters and chemical composition. There is also some evidence that the microstrain values determined by Rietveld refinements are in fact an expression of composition variation within the phase and not a pure microstrain. 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：432 / 438
页数：7
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