Permanent magnetic alloy comprising gold, platinum and cobalt

摘要

A permanent magnetic alloy mainly composed of gold for making magnetic personal ornaments comprises 50 to 75 weight % gold, 12 to 40 weight % palladium and 3 to 15 weight % cobalt. The alloy is gold or white gold in color and can be plastically deformed to a desired shape. The 12, 14 and 18 Karat gold alloys have maximum energy products of 3.0, 2.2 and 0.9 MGOe, respectively.