Heat treatable coated article with niobium zirconium...

C - Chemistry – Metallurgy – 03 – C

Patent

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C03C 17/36 (2006.01) B32B 17/06 (2006.01)

Patent

CA 2538081

A coated article is provided so as to include a solar control coating having an infrared (IR) reflecting layer sandwiched between at least a pair of dielectric layers. The IR reflecting layer includes NbZr and/or NbZrOx in certain embodiments of this invention. The use of such materials as an IR reflecting layer(s) allows the coated article to have good corrosion resistance to alkaline solutions, good mechanical performance such as scratch resistance, and/or good color stability (i.e., a low .DELTA.E* value(s)) upon heat treatment (HT). The coated article may or may not be heat treated in different embodiments of the invention.

La présente invention concerne un article revêtu comprenant un revêtement anti rayons solaires possédant une couche de réflexion infrarouge (IR) prise en sandwich entre au moins une paire de couches diélectriques. La couche de réflexion IR comprend NbZr et/ou NbZrO¿x? dans certains modes de réalisation de cette invention. L'utilisation de matériaux tels qu'une couche de réflexion IR permet à cet article revêtu de présenter une bonne résistance à la corrosion par solutions alcalines, de bonne performance mécaniques telle que la résistance aux éraflures et/ou une bonne stabilité de couleur (c'est-à-dire une faible valeur ?E* lors d'un traitement thermique). Cet article revêtu peut ou ne peut pas être thermotraité dans différents modes de réalisation de l'invention.

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