Heat treatable coated article with niobium zirconium...

C - Chemistry – Metallurgy – 03 – C

Patent

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Details

C03C 17/36 (2006.01) B32B 17/06 (2006.01) C23C 14/16 (2006.01) C23C 14/34 (2006.01)

Patent

CA 2521952

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 NbZrNx in certain embodiments of this invention. The use of such materials as an IR reflecting layer(s) enables 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.

L'invention porte sur un article enrobé formé de façon à comprendre un revêtement solaire pourvu d'une couche réfléchissante à l'infrarouge prise en sandwich entre au moins une paire de couches de diélectrique. La couche réfléchissante à l'infrarouge comprend NbZr et/ou NbZrN¿x? dans certaines formes d'exécution de l'invention. L'utilisation de ces matériaux comme couche(s) réfléchissante(s) à l'infrarouge permet de conférer à l'article enrobé une bonne résistance à la corrosion par rapport aux solutions alcalines, une bonne performance mécanique telle que la résistance aux rayures et/ou une bonne stabilité des couleurs (à savoir une ou de faibles valeurs ?E*) lors du traitement thermique. L'article enrobé peut être ou non traité thermiquement selon différents modes d'exécution de l'invention.

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