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

页码：416 / 422

页数：7

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