CA2521952A1 - Heat treatable coated article with niobium zirconium inclusive ir reflecting layer and method of making same - Google Patents

Heat treatable coated article with niobium zirconium inclusive ir reflecting layer and method of making same Download PDF

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Publication number
CA2521952A1
CA2521952A1 CA002521952A CA2521952A CA2521952A1 CA 2521952 A1 CA2521952 A1 CA 2521952A1 CA 002521952 A CA002521952 A CA 002521952A CA 2521952 A CA2521952 A CA 2521952A CA 2521952 A1 CA2521952 A1 CA 2521952A1
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CA
Canada
Prior art keywords
coated article
layer
niobium zirconium
zirconium
niobium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002521952A
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French (fr)
Other versions
CA2521952C (en
Inventor
Grzegorz Stachowiak
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Guardian Glass LLC
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2521952A1 publication Critical patent/CA2521952A1/en
Application granted granted Critical
Publication of CA2521952C publication Critical patent/CA2521952C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3618—Coatings of type glass/inorganic compound/other inorganic layers, at least one layer being metallic
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/3411—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
    • C03C17/3429—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials at least one of the coatings being a non-oxide coating
    • C03C17/3435—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials at least one of the coatings being a non-oxide coating comprising a nitride, oxynitride, boronitride or carbonitride
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3626—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer one layer at least containing a nitride, oxynitride, boronitride or carbonitride
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3649—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer made of metals other than silver
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3657—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating having optical properties
    • C03C17/366—Low-emissivity or solar control coatings
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3681—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating being used in glazing, e.g. windows or windscreens

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 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.

Claims (52)

1. A coated article including a layer system supported by a substrate, the layer system comprising:

a first dielectric layer;
a layer comprising niobium zirconium provided on the substrate over at least the first dielectric layer; and a second dielectric layer provided on the substrate over at least the layer comprising niobium zirconium.
2. The coated article of claim 1, wherein the layer comprising niobium zirconium is sandwiched between and contacts each of the first and second dielectric layers.
3. The coated article of claim 1, wherein each of the dielectric layers comprises at least one of a nitride and a metal oxide.
4. The coated article of claim 1, wherein at least one of the first and second dielectric layers comprises silicon nitride.
5. The coated article of claim 1, wherein each of the first and second dielectric layers comprises silicon nitride.
6. The coated article of claim 1, wherein a contact or nucleation layer is provided between the layer comprising niobium zirconium and the first dielectric layer.
7. The coated article of claim 1, wherein a contact or nucleation layer is provided between the layer comprising niobium zirconium and the second dielectric layer.
8. The coated article of claim 1, wherein the coated article has a visible transmission from about 6 to 80%.
9. The coated article of claim 1, wherein the coated article has a visible transmission of from about 10-50%.
10. The coated article of claim 1, wherein the coated article has a visible transmission of from about 12-30%.
11. The coated article of claim 1, wherein the coated article is a window.
12. The coated article of claim 1, wherein the layer system has a sheet resistance (R S) of less than 250 ohms/square.
13. The coated article of claim 1, wherein the layer system has a sheet resistance (R5) of less than 100 ohms/square.

°
14. The coated article of claim 1, wherein the layer system has a sheet resistance (R5) of less than 60 ohms/square.
15. The coated article of claim 1, wherein the layer system further comprises an overcoat comprising zirconium oxide.
16. The coated article of claim 1, wherein the layer comprising niobium zirconium is nitrided.
17. The coated article of claim 1, wherein the layer comprising niobium zirconium is nitrided so as to be represented by (Nb+Zr)x N y, where the ratio y/x (i.e., the ratio of N to Nb+Zr) is from 0.2 to 0.9.
18. The coated article of claim 17, wherein the ration y/x is from 0.3 to 0.8.
19. The coated article of claim 1, wherein in the layer comprising niobium zirconium the ratio of zirconium to niobium (Zr/Nb) is from about 0.001 to 1Ø
20. The coated article of claim 1, wherein in the layer comprising niobium zirconium the ratio of zirconium to niobium (Zr/Nb) is from about 0.001 to 0.60.
21. The coated article of claim 1, wherein in the layer comprising niobium zirconium the ratio of zirconium to niobium (Zr/Nb) is from about 0.004 to 0.50.
22. The coated article of claim 1, wherein the layer comprising niobium zirconium includes from about 0.1 to 60% zirconium.
23. The coated article of claim 1, wherein the layer comprising niobium zirconium includes from about 0.4 to 10% zirconium.
24. The coated article of claim 1, wherein the coated article is heat treated and has a .DELTA.E* value (glass side reflective) of no greater than 5.0 after and/or due to heat treatment.
25. The coated article of claim 1, wherein the coated article is heat treated and has a .DELTA.E* value (glass side reflective) of no greater than 4.0 after and/or due to heat treatment.
26. The coated article of claim 1, wherein the coated article is heat treated and has a .DELTA.E* value (glass side reflective) of no greater than 3.0 after and/or due to heat treatment.
27. The coated article of claim 1, wherein the layer system consists essentially of the first and second dielectric layers and the layer comprising niobium zirconium.
28. The coated article of claim 1, wherein the layer comprising niobium zirconium is metallic.
29. The coated article of claim 1, wherein the coated article has no metallic infrared (IR) reflecting layer comprising Ag or Au.
30. The coated article of claim 1, wherein the coated article comprises an IG
window unit, a monolithic window, or a laminated window.
31. The coated article of claim 1, wherein the layer comprising niobium zirconium is substantially free of any oxide.
32. The coated article of claim 1, wherein at least one of the dielectric layers comprises silicon nitride and includes from 6-20% aluminum and/or stainless steel.
33. The coated article of claim 1, wherein the layer comprising niobium zirconium does not contact any metallic infrared (IR) reflecting layer comprising Ag or Au.
34. The coated article of claim 1, wherein the coated article is not heat treated.
35. The coated article of claim 1, wherein the substrate is a glass substrate.
36. A coated article including a coating supported by a glass substrate, the coating comprising:

a first dielectric layer;
a layer comprising a nitride of niobium zirconium;
a second dielectric layer, wherein said layer comprising the nitride of niobium nitride is located between at least the first and second dielectric layers.
37. A coated article including a coating supported by a glass substrate, the coating comprising:

first and second dielectric layers, each of the first and second dielectric layers comprising at least one of a nitride and a metal oxide:

a layer comprising niobium zirconium provided between at least the first and second dielectric layers; and wherein the coated article has a visible transmission of from 8 to 80%.
38. The coated article of claim 37, wherein the layer comprising niobium zirconium is nitrided.
39. A method of making a coated article used in a window, the method comprising:

providing a glass substrate;
sputtering a first dielectric layer on the glass substrate;
sputtering a layer comprising niobium zirconium on the glass substrate over at least the first dielectric layer;
sputtering a second dielectric layer on the glass substrate over at least the layer comprising niobium zirconium.
40. A coated article including a layer system supported by a substrate, the layer system comprising:
a first layer comprising a nitride and/or metal oxide;
a layer comprising niobium zirconium provided on the substrate over at least the first layer comprising the nitride and/or metal oxide; and a second layer comprising a nitride and/or metal oxide provided over at least the layer comprising niobium zirconium, so that the layer comprising niobium zirconium is located between at least the first and second layers comprising a nitride and/or metal oxide.
41. The coated article of claim 40, wherein the coated article has a visible transmission of from 6 to 80%.
42. The coated article of claim 40, wherein the layer comprising niobium zirconium comprises a nitride.
43. The coated article of claim 40, wherein each of the first and second layers comprises silicon nitride.
44. A coated article including a layer system supported by a glass substrate, the layer system comprising:
a layer comprising niobium zirconium supported by the substrate; and a dielectric layer supported by the substrate over at least the layer comprising niobium zirconium.
45. The coated article of claim 44, wherein the layer comprising niobium zirconium is nitrided.
46. The coated article of claim 44, further comprising a layer comprising silicon nitride between the substrate and the layer comprising niobium zirconium.
47. The coated article of claim 44, wherein the layer comprising niobium zirconium contacts the glass substrate.
48. A coated article including a layer system supported by a glass substrate, the layer system comprising:
a layer comprising niobium zirconium supported by the substrate: and wherein the layer comprising niobium zirconium has an index of refraction "n"
of from 2.0 to 3.0, an extinction coefficient "k" of from 2.0 to 3.5, and comprises from about 0.1 to 60% Zr.
49. The coated article of claim 48, wherein the layer comprising niobium zirconium comprises from 0.1 to 20% Zr.
50. The coated article of claim 48, wherein the layer comprising niobium zirconium comprises from 0.4 to 15% Zr.
51. The coated article of claim 48, wherein the layer comprising niobium zirconium is located between at least first and second nitride and/or metal oxide layers.
52. The coated article of claim 1, wherein the layer comprising niobium zirconium has an index of refraction "n" of from 2.0 to 3.0, an extinction coefficient "k"
of from 2.0 to 3.5, and comprises from about 0.1 to 60% Zr.
CA2521952A 2003-04-25 2004-04-07 Heat treatable coated article with niobium zirconium inclusive ir reflecting layer and method of making same Expired - Fee Related CA2521952C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/423,058 US6890659B2 (en) 2003-04-25 2003-04-25 Heat treatable coated article with niobium zirconium inclusive IR reflecting layer and method of making same
US10/423,058 2003-04-25
PCT/US2004/010716 WO2004096722A2 (en) 2003-04-25 2004-04-07 Heat treatable coated article with niobium zirconium inclusive ir reflecting layer and method of making same

Publications (2)

Publication Number Publication Date
CA2521952A1 true CA2521952A1 (en) 2004-11-11
CA2521952C CA2521952C (en) 2010-06-22

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CA2521952A Expired - Fee Related CA2521952C (en) 2003-04-25 2004-04-07 Heat treatable coated article with niobium zirconium inclusive ir reflecting layer and method of making same

Country Status (5)

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US (1) US6890659B2 (en)
EP (2) EP2243753A3 (en)
CA (1) CA2521952C (en)
PL (1) PL378058A1 (en)
WO (1) WO2004096722A2 (en)

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Also Published As

Publication number Publication date
US6890659B2 (en) 2005-05-10
WO2004096722A2 (en) 2004-11-11
PL378058A1 (en) 2006-02-20
CA2521952C (en) 2010-06-22
EP2243753A3 (en) 2011-08-03
EP2243753A2 (en) 2010-10-27
EP1633683A4 (en) 2011-08-03
US20040214012A1 (en) 2004-10-28
EP1633683A2 (en) 2006-03-15
WO2004096722A3 (en) 2004-12-29

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