Crystal Structures and Phase Equilibria in the Hafnium-Palladium System

被引：8
|
作者：
Stalick, Judith K. [1 ]
Waterstrat, Richard M. [2 ]
机构：
[1] NIST, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA
[2] NIST, Mat Sci & Engn Div, Gaithersburg, MD 20899 USA
来源：
JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION | 2016年 / 37卷 / 04期
关键词：
alloys; binary system; crystal structure; intermetallic compound; phase equilibria; phase transitions; DIAGRAM; PD; HF; ALLOYS; TI;
D O I：
10.1007/s11669-016-0469-8
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：
Portions of the Hf-Pd phase diagram have been reinvestigated in an attempt to resolve contradictions that occur between two previous studies. Techniques employed include Rietveld refinement using x-ray and high-temperature neutron diffraction data to determine crystal structures and phase equilibria. The compound Hf2Pd3 was discovered with the Os2Al3 structure type, and no evidence was found for a reported "Hf3Pd4" phase. More importantly, the compound HfPd2 was found to be involved in a previously undetected peritectic reaction at 1850 A degrees C. Crystallographic data are given for all compounds encountered, and a significantly revised phase diagram is proposed.
引用
收藏
页码：416 / 422
页数：7
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