Heat treatable coated article with niobium zirconium inclusive IR reflecting layer and method of making same
First Claim
1. A coated article including a layer system supported by a substrate, the layer system comprising:
- a first dielectric layer;
a layer comprising an oxide of niobium zirconium (NbZr) provided on the substrate over at least the first dielectric layer;
a second dielectric layer provided on the substrate over at least the layer comprising the oxide of niobium zirconium;
wherein the coated article has no metallic infrared (IR) reflecting layer comprising Ag or Au.
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Accused Products
Abstract
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 ΔE* value(s)) upon heat treatment (HT). The coated article may or may not be heat treated in different embodiments of the invention.
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Citations
86 Claims
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1. A coated article including a layer system supported by a substrate, the layer system comprising:
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a first dielectric layer;
a layer comprising an oxide of niobium zirconium (NbZr) provided on the substrate over at least the first dielectric layer;
a second dielectric layer provided on the substrate over at least the layer comprising the oxide of niobium zirconium;
wherein the coated article has no metallic infrared (IR) reflecting layer comprising Ag or Au. - View Dependent Claims (2, 4, 5, 8, 11, 12, 13, 14, 19, 21, 22, 23, 24, 27, 30, 31, 32, 49, 58, 66, 69, 80)
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3. A coated article including a layer system supported by a substrate, the layer system comprising:
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a first dielectric layer;
a layer comprising an oxide of niobium zirconium (NbZr) provided on the substrate over at least the first dielectric layer;
a second dielectric layer provided on the substrate over at least the layer comprising the oxide of niobium zirconium; and
wherein each of the dielectric layers comprises a nitride and/or a metal oxide. - View Dependent Claims (50, 59, 70, 81)
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6. A coated article including a layer system supported by a substrate, the layer system comprising:
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a first dielectric layer;
a layer comprising an oxide of niobium zirconium (NbZr) provided on the substrate over at least the first dielectric layer;
a second dielectric layer provided on the substrate over at least the layer comprising the oxide of niobium zirconium; and
wherein a contact or nucleation layer is provided between the layer comprising the oxide of niobium zirconium and the first dielectric layer. - View Dependent Claims (51, 71)
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7. A coated article including a layer system supported by a substrate, the layer system comprising:
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a first dielectric layer;
a layer comprising an oxide of niobium zirconium (NbZr) provided on the substrate over at least the first dielectric layer;
a second dielectric layer provided on the substrate over at least the layer comprising the oxide of niobium zirconium; and
wherein the layer comprising the oxide of niobium zirconium comprises from 0.05 to 10% oxygen. - View Dependent Claims (52, 60, 72, 82)
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9. A coated article including a layer system supported by a substrate, the layer system comprising:
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a first dielectric layer;
a layer comprising an oxide of niobium zirconium (NbZr) provided on the substrate over at least the first dielectric layer;
a second dielectric layer provided on the substrate over at least the layer comprising the oxide of niobium zirconium; and
wherein the coated article has a visible transmission of from about 10-50%. - View Dependent Claims (10, 53, 73)
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15. A coated article including a layer system supported by a substrate, the layer system comprising:
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a first dielectric layer;
a layer comprising an oxide of niobium zirconium (NbZr) provided on the substrate over at least the first dielectric layer;
a second dielectric layer provided on the substrate over at least the layer comprising the oxide of niobium zirconium; and
wherein the layer comprising the oxide of niobium zirconium is at least partially nitrided.
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16. A coated article including a layer system supported by a substrate, the layer system comprising:
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a first dielectric layer;
a layer comprising an oxide of niobium zirconium (NbZr) provided on the substrate over at least the first dielectric layer;
a second dielectric layer provided on the substrate over at least the layer comprising the oxide of niobium zirconium; and
wherein the layer comprising the oxide of niobium zirconium comprises (Nb+Zr)xOy, where the ratio y/x (i.e., the ratio of oxygen to Nb+Zr) is from 0.03 to 0.20. - View Dependent Claims (17, 54, 61, 74, 83)
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18. A coated article including a layer system supported by a substrate, the layer system comprising:
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a first dielectric layer;
a layer comprising an oxide of niobium zirconium (NbZr) provided on the substrate over at least the first dielectric layer;
a second dielectric layer provided on the substrate over at least the layer comprising the oxide of niobium zirconium; and
wherein in the layer comprising the oxide of niobium zirconium, the ratio of zirconium to niobium (Zr/Nb) is from about 0.004 to 0.50. - View Dependent Claims (55, 62, 75)
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20. A coated article including a layer system supported by a substrate, the layer system comprising:
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a first dielectric layer;
a layer comprising an oxide of niobium zirconium (NbZr) provided on the substrate over at least the first dielectric layer;
a second dielectric layer provided on the substrate over at least the layer comprising the oxide of niobium zirconium; and
wherein the coated article is heat treated and has a Δ
E* value (glass side reflective) of no greater than 4.0 after and/or due to heat treatment. - View Dependent Claims (56, 63, 67, 84)
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25. A coated article including a layer system supported by a substrate, the layer system comprising:
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a first dielectric layer;
a layer comprising an oxide of niobium zirconium (NbZr) provided on the substrate over at least the first dielectric layer;
a second dielectric layer provided on the substrate over at least the layer comprising the oxide of niobium zirconium; and
wherein the layer system consists essentially of the first and second dielectric layers and the layer comprising the oxide of niobium zirconium. - View Dependent Claims (76)
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26. (Canceled)
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28. A coated article including a layer system supported by a substrate, the layer system comprising:
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a first dielectric layer;
a layer comprising an oxide of niobium zirconium (NbZr) provided on the substrate over at least the first dielectric layer;
a second dielectric layer provided on the substrate over at least the layer comprising the oxide of niobium zirconium; and
wherein at least one of the dielectric layers comprises silicon nitride and includes from 6-20% aluminum and/or stainless steel. - View Dependent Claims (57, 64, 77, 85)
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29. A coated article including a layer system supported by a substrate, the layer system comprising:
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a first dielectric layer;
a layer comprising an oxide of niobium zirconium (NbZr) provided on the substrate over at least the first dielectric layer;
a second dielectric layer provided on the substrate over at least the layer comprising the oxide of niobium zirconium; and
wherein the layer comprising the oxide of niobium zirconium does not contact any metallic infrared (IR) reflecting layer of comprising Ag or Au. - View Dependent Claims (65, 68, 78, 79, 86)
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33. A heat treated coated article including a layer system supported by a glass substrate, the layer system comprising:
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a layer comprising an oxide of niobium zirconium (NbZr) provided on the glass substrate;
a dielectric layer provided on the substrate over at least the layer comprising the oxide of niobium zirconium; and
wherein the coated article is heat treated and has a Δ
E* value (glass side reflective) of no greater than 3.0 after and/or due to heat treatment. - View Dependent Claims (34, 35, 36, 37, 38)
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39-48. -48. (Canceled)
Specification