C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
C03C 17/36 (2006.01) C03C 17/34 (2006.01) C03C 23/00 (2006.01)
Patent
CA 2567048
A coated article is provided that may be used as a vehicle windshield, insulating glass (IG) window unit, or the like. Ion beam treatment is performed on a layer(s) of the coating. For example, a silicon nitride layer of a law-E coating may be ion beam treated. It has been found that ion beam treatment, for example, of a silicon nitride underlayer is advantageous in that sodium migration from the glass substrate toward the IR reflecting layer(s) can be reduced during heat treatment.
La présente invention concerne un article revêtu convenant comme pare-brise d'automobile, comme vitrage isolant ou analogue. L'une au moins des couches du revêtement a subi un traitement par faisceau d'ions. La couche ainsi traitée sera généralement une couche de nitrure de silicium d'un revêtement faiblement émissif. Il est apparu que ce traitement par faisceau d'ions d'une sous-couche de nitrure de silicium est intéressant car il permet de réduire la migration du sodium du substrat de verre vers les couches anti-infrarouge pendant le traitement thermique.
Guardian Industries Corp.
Macpherson Leslie & Tyerman Llp
LandOfFree
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