System of layers for transparent substrates and coated...

Details System of layers for transparent substrates and coated... System of layers for transparent substrates and coated...

C - Chemistry, Metallurgy

03

C

C03C 17/36 (2006.01) C03C 17/245 (2006.01) C03C 17/34 (2006.01) C23C 14/08 (2006.01) C23C 14/18 (2006.01) C23C 14/34 (2006.01)

Patent

CA 2504919

The invention relates to a system of layers for coating the surface of transparent substrates, in particular, a system of layers with low emissivity (Low-E) for glass windows, comprising at least one layer of mixed oxides produced by reactive cathodic sputtering from a metallic target alloy. The mixed oxide layer comprises ZnO, Ti0¿2? and at least one of the oxides Al¿2?0¿3?, Ga¿2?0¿3? and Sb¿2?0¿3? and finds application as upper and/or lower anti-reflection layer, partial layer of an anti-reflecting layer and/or a final finishing layer. Said system of layers is characterised by a high degree of hardness and excellent resistance to the maritime climate.

Un système de couches pour le revêtement de surface de substrats transparents, en particulier un système de couches à faible pouvoir émissif (Low-E) pour vitres en verre, présente au moins une couche d'oxydes mixtes fabriquée par pulvérisation cathodique réactive à partir d'un alliage-cible métallique. La couche d'oxydes mixtes se compose de ZnO, Ti02 et d'au moins l'un des oxydes AL203, Ga203 et Sb203. Elle peut servir de couche antireflet supérieure et/ou inférieure, de couche partielle d'une couche antireflet et/ou de couche de finition supérieure. Un tel système de couches se caractérise par une dureté élevée et par une très bonne résistance au climat maritime.

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