This paper includes a compilation of materials that are expected to have high strength at high temperatures. A list of 235 single-phase materials with melting (or dissociation) temperatures (Tm) that are 2000°C or aboue and a supplementary list of 140 metals and intermetallic compounds with Tm between 1500°C and 2000°C, have been assembled. Based on the simple, structure-insensitive properties, melting temperature, specific gravity, and Young’s modulus, materials can be ranked according to their likely stiffness per unit mass or strength per unit mass. Increases in values of these properties would facilitate progress in aircraft or spacecraft applications and in machinery with rotating parts. Development of useful materials will require the over-coming of brittleness and corrosion problems. They must also combat the limitations set by chemical kinetics.
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