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Title: Thermal conductivity of ruthenium aluminide (RuAl)

Ruthenium aluminide (RuAl) is an intermetallic compound which exhibits strength at high temperatures together with attractive room temperature toughness. This combination of properties makes it a promising material for use at higher temperatures than currently possible with conventional titanium and nickel based alloys. Although high temperature applications will demand a knowledge and understanding of the thermal properties of RuAl, no such information is available in the scientific literature. In this paper, measurements of the thermal conductivity of RuAl are reported for the first time. Although the electrical properties of RuAl have previously been investigated, further electrical resistivity measurements have been made, using the same samples used to measure thermal conductivity. This allows a direct, meaningful comparison of electrical and thermal conductivity data, offering insights into the thermal transport mechanisms in RuAl. Microstructure is shown to have a significant influence on thermal and electrical properties.
Authors:
;  [1]
  1. Univ. of Cape Town, Rondebosch (South Africa). Dept. of Materials Engineering
Publication Date:
OSTI Identifier:
603884
Resource Type:
Journal Article
Resource Relation:
Journal Name: Scripta Materialia; Journal Volume: 38; Journal Issue: 3; Other Information: PBD: 6 Jan 1998
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; RUTHENIUM ALLOYS; ALUMINIUM ALLOYS; THERMAL CONDUCTIVITY; MICROSTRUCTURE; ELECTRICAL PROPERTIES; HEAT RESISTING ALLOYS