Method for coating a substrate surface and coated product

Details Method for coating a substrate surface and coated product Method for coating a substrate surface and coated product

C - Chemistry, Metallurgy

23

C

C23C 4/12 (2006.01) C23C 4/06 (2006.01) C23C 24/04 (2006.01)

Patent

CA 2606478

Disclosed is a method of applying coatings to surfaces, wherein a gas flow forms a gas-powder mixture with a powder of a material selected from the group consisting of niobium, tantalum, tungsten, molybdenum, titanium, zirconium or mixtures of at least two thereof or their alloys with at least two thereof or with other metals, the powder has a particle size of from 0.5 to 150 ~m, wherein a supersonic speed is imparted to the gas flow and the jet of supersonic speed is directed onto the surface of an object. The coatings prepared are used, for example, as corrosion proctection coatings.

L'invention concerne un procédé qui permet d'appliquer des revêtements sur des surfaces, selon lequel un flux gazeux forme un mélange de gaz et de poudre avec un matériau en poudre choisi dans le groupe composé du niobium, du tantale, du tungstène, du molybdène, du titane, du zirconium ou de mélanges d'au moins deux des éléments précités ou de leurs alliages avec au moins deux des éléments précités ou avec d'autres métaux, la poudre possédant une taille de particule comprise entre 0,5 et 150 ?m, une vitesse supersonique étant imprimée au flux gazeux et le jet à vitesse supersonique étant dirigé sur la surface d'un objet. Les revêtements préparés selon l'invention sont utilisés, par exemple, comme revêtements de protection anticorrosion.

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