Low emissivity (low-e) thin coating stacks with intermediate...

C - Chemistry – Metallurgy – 03 – C

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C03C 17/36 (2006.01)

Patent

CA 2620012

The invention concerns a system of low emissivity ("Low-E") coatings comprising a silver layer as functional layer, with high thermal resistance, for transparent substrates, in particular for glass panes, which has between the surface of the substrate and the silver layer a highly refractive layer, in particular made of TiO2, Nb2O5 or TiNbOx, and immediately beneath the silver layer, a layer consisting essentially of ZnO, wherein a mixed oxide layer of thickness not less than 0.5 nm, in NiCrOx or InSnOx (ITO) which acts as anti-diffusion layer is deposited between the highly refractive layer and the ZnO layer.

Dans un système de couches à basse émissivité ("Low-E") qui comprend une couche d'argent comme couche fonctionnelle, à haute résistance thermique, pour des substrats transparents, en particulier pour des vitres, qui présente entre la surface du substrat et la couche d'argent une couche à haute réfringence, en particulier en TiO2, Nb2O5 ou TiNbOx, et immédiatement en dessous de la couche d'argent une couche essentiellement constituée de ZnO, une couche d'oxyde mixte d'une épaisseur d'au moins 0,5 nm, en NiCrOx ou InSnOx (ITO) qui sert de couche anti-diffusion est disposée entre la couche à haute réfringence et la couche de ZnO.

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