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New white gold alloys

Objective

Today, there are no other commercial white gold alloys as alternatives to platinum except white gold alloys either with Pd (expensive) or with a little content of Ni (soon completely prohibited). Therefore, the sector of the jewellery always needs of a new white gold alloy for replacing the current not adequate Ni and Pd based gold alloys. The industrial aim of our project is to formulate a new white gold alloy by testing all the bends containing gold and other elements with whitening capacity. The innovation of this project is in the method that will be used. Effectively, the testing process will be the Physical Vapor Deposition (PVD) with three sources of metal in order to screen the color of different alloys by making only coated plate. This technique will permit to make very quick and cheap cartography of the color of the different ternary blends. The first step consists in only coated plates, and the second step in investment casting of the solid alloys.

Funding Scheme

EAW - Exploratory awards

Coordinator

GAY FRÈRES SA
Address
Zone Industrielle Du Mont-blanc
74105 Annemasse
France

Participants (1)

FLAMINGO B.V.
Netherlands
Address
Herenstraat 100
3431 CB Nieuwegein