Degussa Aktiengesellschaft

Leybold Aktiengesellschaft

Horst Becker

Martin Weigert

Uwe Konietzka

Uwe Kopacz

Christoph Daube

Gernot Jackel

Andreas Rack

Horst Heidsiek

The invention concerns a process for coating a substrate 1 of little or no corrosion resistance, especially a metal substrate having an alloy consisting at least of Ni, Cr and Fe, in an evacuable coating chamber 15, 15a. It comprises making an electrode that can be connected to a current supply 10, this electrode being electrically connected to a target 3 which is sputtered and the sputtered particles of which are deposited on the substrate 1. Reactive process gases are, for this purpose, supplied to the coating chamber 15, 15a, so that an amorphously depositing layer 2 is applied onto the substrate.

Method for coating a substrate of low resistance to corrosion

New nickel alloys are described which are useful for eyeglass frames, which alloys in addition to good resistance to corrosion also have good workability properties. They contain 5 to 20 percent copper and 5 to 30 percent zinc. Optionally, they can also be alloyed in small amounts other metals such as manganese, silicon, beryllium, cobalt, aluminum, niobium, tantalum, or titanium.

Eyeglass frames made of Ni alloy

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Rodenbach, Germany

Horst Becker