A study of the Al-Pt-Ir phase diagram

被引：3
|
作者：
Grushko, B. [1 ,2 ]
Samuha, S. [3 ,4 ]
Meshi, L. [3 ]
机构：
[1] MaTecK, D-52428 Julich, Germany
[2] Forschungszentrum Julich, PGI 5, D-52425 Julich, Germany
[3] Ben Gurion Univ Negev, Dept Mat Engn, IL-84105 Beer Sheva, Israel
[4] Nucl Res Ctr Negev, IL-84190 Beer Sheva, Israel
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 646卷
关键词：
Transition metal alloys and compounds; Phase diagrams; Crystal structure; CRYSTAL-STRUCTURE; RICH REGION; ALUMINUM; INTERMETALLICS; ALLOYS; METALS;
D O I：
10.1016/j.jallcom.2015.06.118
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：
Phase equilibria in Al-Pt-Ir were studied up to 50 at.% Al at 1100 degrees C, up to 70 at.% Al at 900 degrees C and up to 75 at.% Al at 810 degrees C. At elevated temperatures the isostructural AlIr and high-temperature AlPt beta-phases probably form a continuous compositional region. The ternary extensions of the phases Al4Pt, Al21Pt8, Al3Pt2 and low-temperature AlPt were revealed along approximately constant Al concentrations up to 15, 11, 20 and 10 at.% Ir, respectively. The Al-Ir C-phase dissolved up to 12 at.% Pt, and the chi-phase propagated up to almost Al3Pt. A new ternary B-phase (I4(1)/acd, a = 0.86250, c = 2.18409 nm) was revealed around Al69Pt7Ir24. Its structural model was derived from the electron diffraction data. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：873 / 878
页数：6
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