New coated metal particles, especially for producing bone prostheses, cosmetic additives, catalysts and fuel cell electrodes, comprise fine metal cores coated with an oxide not based on the metal core main component

摘要

Coated metal particles, comprising fine metal core particles coated with an oxide, complex oxide or oxy-acid salt not based on the metal core main component. Novel oxide coated metal particles comprise fine metal core particles, each coated with a layer of an oxide, a complex oxide or an oxy-acid salt, which does not contain a main component of the core as main component, or of a complex oxide or complex salt of this oxide, complex oxide or oxy-acid salt and an oxide of the metal element. An Independent claim is also included for production of the above oxide coated fine metal particles by mixing fine metal powder with oxide powder, introducing into a thermal plasma to form a vapor phase mixture and then quenching.