Rolls-royce Corporation

Turbomeca Societe Dite

Commissariat a L'energie Atomique

Etat Francais

Turbomeca

L'etat Francais, Represente Par Le Delegue General Pour L'armement

Etat Francais-delegation Generale Pour L'armement

Pierre Monge-Cadet

Guy Farges

David S Rickerby

Michel Brun

Jacques Ernoult

Yves Pauleau

Serge Paidassi

A multiple layer erosion resistant coating on a substrate comprises alternate layers of tungsten and titanium diboride. All of the layers have the same thickness and preferably have thickness's of between 0.3 and 1 micrometer to give improved erosion resistance. The layers are produced by spattering.

Multiple layer erosion resistant coating and a method for its production

A multiple layer erosion resistant coating on a substrate comprises alternate layers of tungsten and titanium diboride. All of the layers have the same thickness and preferably have thickness's of between 0.3 and 1 micrometer to give improved erosion resistance. The layers are produced by sputtering.

The present invention relates to a multilayer material useful as an anti-erosion and anti-abrasion coating, and to a process for producing the multilayer material at low temperatures. The multilayer material comprises a substrate covered with at least one metallic tungsten ductile layer and at least one hard layer of a solid solution of an additional element chosen from carbon or nitrogen or a mixture of carbon and nitrogen in tungsten or a tungsten alloy, the two types of layers ar alternating. The multilayer material is particularly useful as a coating for parts used in aeronautics.

Multilayer material, anti-erosion and anti-abrasion coating

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Serres-Morlaas, France

Pierre Monge-Cadet