Patent ID: 7494619

Claim:
An alloy consisting of: at least about 50 atomic percent rhodium; up to about 49 atomic percent of a first material, said first material consisting of at least one of palladium, platinum, iridium, and combinations thereof; from about 1 to about 15 atomic percent of a second material, said second material consisting of at least one of tungsten, rhenium, and combinations thereof; up to about 10 atomic percent of a third material, said third material consisting of at least one of ruthenium, chromium, and combinations thereof; and a fourth material, said fourth material consisting of at least one of zirconium, yttrium, hafnium, tantalum, aluminum, titanium, scandium, elements of the lanthanide series, elements of the actinide series, and combinations thereof, wherein the fourth material is present in an amount from about 0.1 to about 2 atomic percent; wherein said alloy has an A1-structured phase at temperatures greater than about 1000° C., in an amount of at least about 90% by volume.