Methods and apparatus for producing silver based low...

Details Methods and apparatus for producing silver based low... Methods and apparatus for producing silver based low...

C - Chemistry, Metallurgy

03

C

C03C 17/36 (2006.01) C23C 14/08 (2006.01) C23C 14/34 (2006.01)

Patent

CA 2352845

Methods are presented for depositing an infrared reflective, e.g., silver, containing multi-layer coating onto a substrate to form a coated article. One or more ceramic cathodes are used to deposit a protective layer over the silver layer. The use of the ceramic cathodes eliminates the need for the metal primer layers common in the prior art. Both the infrared reflective layer and a ceramic layer can be deposited in the same coating zone, this coating zone containing sufficient oxygen to provide a substantially oxidized ceramic coating layer without adversely impacting upon the properties of the infrared reflective layer.

L'invention concerne des procédés permettant de déposer un revêtement multicouche contenant un métal réfléchissant les rayons infrarouges, par exemple l'argent, sur un substrat afin de former un article revêtu. Au moins une cathode céramique est utilisée pour déposer une couche protectrice sur la couche en argent. L'utilisation de cathodes céramiques permet d'éliminer le recours aux couches primaires métalliques couramment utilisés. La couche réfléchissant les infrarouges et la couche céramique peuvent être déposées dans la même zone de revêtement, laquelle contient suffisamment d'oxygène pour donner une couche de revêtement céramique sensiblement oxydée sans pour autant nuire aux propriétés de la couche réfléchissant les infrarouges.

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