On the constitution of Al-Pt-(Pd or Ni) around 50 at.% Al

被引:9
|
作者
Grushko, B. [1 ]
机构
[1] Forschungszentrum Julich, D-52425 Julich, Germany
关键词
Transition metal alloys compounds; Phase diagrams; RICH PART; PHASES;
D O I
10.1016/j.jallcom.2012.06.114
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
A series of Al-Ni-Pt and Al-Pd-Pt alloys containing similar to 50 at.% Al were studied by powder X-ray diffraction, differential thermal analysis and scanning electron microscopy. The formation of a rhombohedral beta'-phase by cooling is interpreted as evidence of the existence of a high-temperature beta-phase of the CsCl-type structure. It is argued that in binary Al-Pt this structure is stable at equiatomic composition and elevated temperatures rather than that of the FeSi-type structure. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:88 / 93
页数:6
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