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US 8,318,312 B2Granted
Heat treatable coated article with zinc-doped zirconium based layer(s) in coating
AssigneeGuardian Industries Corp.
InventorsRudolph Hugo Petrmichl, Douglas Klimesh, Jiangping Wang
Life of this patent
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Abstract
In certain example embodiments, a coated article includes a Zn-doped zirconium based layer before heat treatment (HT). The coated article is heat treated sufficiently to cause the Zn-doped zirconium based layer to transform into a Zn-doped zirconium oxide based layer that is scratch resistant and/or chemically durable. The doping of the layer with Zn has been found to improve scratch resistance and/or corrosion resistance.
Claims13
A coated article comprising:
- a substrate;
- and
- a layer comprising Zn-doped zirconium oxide (Zn:ZrxOy), where y/x is from about 1.2 to 2.5 and there is more Zr than Zn in the layer comprising Zn-doped zirconium oxide, and metal content of the layer comprising Zn-doped zirconium oxide is from about 5-25% Zn.
Dependencies are inferred from the claim text.