Back to results
US 4,059,441 AGranted
Metallic glasses with high crystallization temperatures and high hardness values
AssigneeAllied Chemical Corporation
InventorsRanjan Ray, Lee E. Tanner, Carl F. Cline
Life of this patent
Estimating the term…
Abstract
Amorphous metallic alloys having substantial amounts of one or more of the elements of Mo, W, Ta and Nb evidence both high thermal stability, with crystallization temperatures ranging from about 650.degree. C to 975.degree. C, and high hardness, with values ranging from about 800 to 1400 DPH (diamond pyramid hardness).
Claims1
A metal alloy at least 50% amorphous having a high crystallization temperature and a high hardness, characterized in that the alloy has the composition ranging from Ta.sub.35 Ni.sub.s W.sub.65-s to Ta.sub.45 Ni.sub.s W.sub.55-s, where "s" ranges from about 35 to 45 atom percent.
Dependencies are inferred from the claim text.