Description: A study of the high-Al part of the Al-Pd-Re phase diagram

This title appears in the Scientific Report : 2008

A study of the high-Al part of the Al-Pd-Re phase diagram

The Al-Pd-Re phase diagram was studied in the compositional range above 50 at.% Al at temperatures between 700 and 1100 degrees C. Apart from the Al-Pd epsilon-phases exhibiting ternary extension up to similar to 6 at.% Re, the binary phases in both Al-Pd and Al-Re dissolve only a little of the thir...

Personal Name(s):	Balanetskyy, S.
	Grushko, B.
Contributing Institute:	Mikrostrukturforschung; IFF-8
Published in:	Journal of alloys and compounds, 456 (2008)
Imprint:	Lausanne Elsevier 2008
DOI:	10.1016/j.jallcom.2007.02.014
Document Type:	Journal Article
Research Program:	Kondensierte Materie
Series Title:	Journal of Alloys and Compounds 456
Subject (ZB):	J phase diagram Al-Pd-Re quasicrystals
	Publikationsportal JuSER

Please use the identifier: http://dx.doi.org/10.1016/j.jallcom.2007.02.014 in citations.

The Al-Pd-Re phase diagram was studied in the compositional range above 50 at.% Al at temperatures between 700 and 1100 degrees C. Apart from the Al-Pd epsilon-phases exhibiting ternary extension up to similar to 6 at.% Re, the binary phases in both Al-Pd and Al-Re dissolve only a little of the third element. In addition to the stable ternary icosahedral and decagonal phases reported earlier a new ternary hexagonal chi-phase (a approximate to 1.231, c approximate to 2.742 nm) was discovered in a compositional range from Al77.8Pd13.8Re8.4 to Al76.2Pd19.0Re4.8. The overall compositional range of the icosahedral phase was found to be between 8.3 and 10.4 at.% Re and between 68.5 and 71.9 at.% Al. This range shifts to lower Re at lower temperatures. Partial isothermal sections at 1100, 1000, 790 and 700 degrees C are presented. (C) 2007 Elsevier B.V. All rights reserved.