| Abstrakt: |
Abstract  For alloys in the range Os-OsAl2-IrAl2.7-Ir, as-cast and annealed at 1400 �C (Os-OsAl-IrAl-Ir) and 1250�C (OsAl-OsAl2-IrAl2.7-IrAl), phase equilibria are studied by powder x-ray diffraction (PXRD), differential thermal analysis (DTA), scanning electron microscopy (SEM) and energy-dispersive x-ray spectroscopy (EDX). Between isostructural aluminides OsAl and IrAl there exists a continuous solid solution (Os,Ir)Al. Other unary and binary phases form terminal solid solutions: (Os), (Ir), (OsAl2), and (IrAl2.7). [ABSTRACT FROM AUTHOR] |
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