Heat treatable coated article and method of making same

Details Heat treatable coated article and method of making same Heat treatable coated article and method of making same

C - Chemistry, Metallurgy

03

C

C03C 17/40 (2006.01) B32B 17/06 (2006.01)

Patent

CA 2538048

A coated article or layer system is provided which includes at least one infrared (IR) reflecting layer including niobium (Nb) sandwiched between at least a pair of dielectric layers. In certain embodiments, a Cr inclusive barrier layer is provided to protect the Nb inclusive IR reflecting layer, for chemical durability purposes. In other example embodiments, a protective overcoat including a zirconium oxide inclusive layer may be provided to protect the Nb inclusive IR reflecting layer for durability purposes.

L'invention concerne un article revêtu ou un système de couche qui comporte au moins une couche réfléchissante à l'infrarouge (IR) renfermant du niobium (Nb) en sandwich entre au moins deux couches diélectriques. Dans certains modes de réalisation, une couche barrière à Cr est prévue pour protéger la couche réfléchissante à l'IR au Nb, à des fins de durabilité chimique. Dans d'autres modes de réalisation selon l'invention, un revêtement de protection renfermant une couche à oxyde de zirconium permet de protéger la couche réfléchissante à l'IR au Nb à des fins de durabilité.

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