Buntes, massives Edelmaterial, das durch das Zusammenfügen von Nanopartikeln von Edelmetallen zustande kommt

摘要

The color adjustable bulk material made of noble metal, comprises an assembly of nanoparticles, which are coated with a dielectric layer. The nanoparticles are shaped such that to obtain a non-consolidated compact, which is sintered for obtaining the colored noble metal material. The dielectric layer is an oxide layer or a polymer layer. The nanoparticles have a size of 5-50 nm. The noble metal material includes gold or gold alloy of 12 carats, where the color is determined by the composition and the chemical environment and shape and size of nanoparticles. An independent claim is included for a process for fabricating a color adjustable bulk material made of noble metal.