CA2548366A1 - Coated article with ir reflecting layer and method of making same - Google Patents

Coated article with ir reflecting layer and method of making same Download PDF

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Publication number
CA2548366A1
CA2548366A1 CA002548366A CA2548366A CA2548366A1 CA 2548366 A1 CA2548366 A1 CA 2548366A1 CA 002548366 A CA002548366 A CA 002548366A CA 2548366 A CA2548366 A CA 2548366A CA 2548366 A1 CA2548366 A1 CA 2548366A1
Authority
CA
Canada
Prior art keywords
layer
coated article
oxide
glass substrate
silicon nitride
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
CA002548366A
Other languages
French (fr)
Other versions
CA2548366C (en
Inventor
Jochen Butz
Anton Dietrich
Uwe Kriltz
Richard Blacker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guardian Europe SARL
Guardian Glass LLC
Original Assignee
Centre Luxembourgeois de Recherches pour le Verre et la Ceramique CRVC SARL
Guardian Industries Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Centre Luxembourgeois de Recherches pour le Verre et la Ceramique CRVC SARL, Guardian Industries Corp filed Critical Centre Luxembourgeois de Recherches pour le Verre et la Ceramique CRVC SARL
Publication of CA2548366A1 publication Critical patent/CA2548366A1/en
Application granted granted Critical
Publication of CA2548366C publication Critical patent/CA2548366C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • C03C17/3644—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 metal being 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
    • C03C17/3652—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 coating stack containing at least one sacrificial layer to protect the metal from oxidation
    • 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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/0021—Reactive sputtering or evaporation
    • C23C14/0036—Reactive sputtering
    • C23C14/0089—Reactive sputtering in metallic mode
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/08—Oxides
    • C23C14/086—Oxides of zinc, germanium, cadmium, indium, tin, thallium or bismuth
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34—Sputtering
    • C23C14/3407—Cathode assembly for sputtering apparatus, e.g. Target
    • C23C14/3414—Metallurgical or chemical aspects of target preparation, e.g. casting, powder metallurgy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31—Surface property or characteristic of web, sheet or block
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31—Surface property or characteristic of web, sheet or block
    • Y10T428/315—Surface modified glass [e.g., tempered, strengthened, etc.]

Abstract

A coated article is provided with at least one infrared (IR) reflecting layer (e.g,. silver based). In certain example embodiments, silicon nitride, zinc oxide, and an oxide of Ni and/or Cr are provided under the IR reflecting layer. It has been found that improved thermal stability may be realized upon beat treatment. In certain example instances, the silicon nitride may be replaced with tin oxide.

Claims (26)

1. A teat treated coated article including a coating supported by a glass substrate, the coating comprising:
a dielectric layer;
a layer comprising silicon nitride;
a layer comprising zinc oxide over and directly contacting the layer comprising silicon nitride;
a layer comprising an oxide of Ni and/or Cr over and directly contacting the layer comprising zinc oxide;
an infrared (IR) reflecting layer comprising silver on the glass substrate, located over and directly contacting the layer comprising an oxide of Ni and/or Cr;
another layer comprising an oxide of Ni and/or Cr located over and directly contacting the IR reflecting layer comprising silver;
a layer comprising a metal oxide located over and directly contacting the another layer comprising the oxide of Ni and/or Cr; and a layer comprising silicon nitride located over the layer comprising the metal oxide.
2. The coated article of claim 1, wherein the coated article includes only one layer comprising silver.
3. The coated article of claim 1, wherein the dielectric layer comprises titanium oxide.
4. The coated article of claim 1, wherein the dielectric layer comprises tin oxide.
5. The coated article of claim 1, further comprising a layer comprising tin oxide provided between the dielectric layer and the layer comprising silicon nitride.
6. The coated article of claim 1, wherein the IR reflecting layer comprising silver has a specific resistivity (SR) of no greater than 4.5 micro-ohms.cm.
7. The coated article of claim 1, wherein the IR reflecting layer comprising silver has a specific resistivity (SR) of no greater than 4.2 micro-ohms.cm.
8. The coated article of claim 1, wherein the coating has a sheet resistance (R S) of no greater than 3.8 ohms/square.
9. The coated article of claim 1, wherein the coating has a sheet resistance (R S) of no greater than 3.4 ohms/square.
10. The coated article of claim 1, wherein the coated article is an insulating glass (IG) window unit.
11. The coated article of claim 1, wherein the coated article is an insulating glass (IG) window unit, the IG window unit comprising said glass substrate and another glass substrate spaced therefrom, and wherein the IG window unit has a U-value of no greater than 1.25 W/(m2K).
12. The coated article of claim 11, wherein the IG window unit has a U-value of no greater than 1.15 W/(m2K).
13. The coated article of claim 12, wherein the IG window unit has a U-value of no greater than 1.1 W/(m2K).
14. The coated article of claim 12, wherein the IG window unit has a visible transmission of at least 70%.
15. A coated article including a coating supported by a glass substrate, the coating comprising, from the glass substrate outwardly:
a layer comprising silicon nitride or tin oxide;

a layer comprising zinc oxide over and directly contacting the layer comprising silicon nitride or tin oxide;
a layer comprising an oxide of Ni and/or Cr over and directly contacting the layer comprising zinc oxide;
an infrared (IR) reflecting layer comprising silver over and directly contacting the layer comprising an oxide of Ni and/or Cr; and a dielectric layer.
16. The coated article of claim 15, further comprising a layer comprising a metal oxide located between the glass substrate and the layer comprising silicon nitride or tin oxide.
17. The coated article of claim 15, wherein the coated article is not heat treated and the layer comprising the oxide of Ni and\or Cr is substoichiometric.
18. The coated article of claim 15, wherein the coated article is heat treated.
19. The coated article of claim 15, further comprising:
another layer comprising an oxide of Ni and/or Cr located over and directly contacting the IR reflecting layer comprising silver, a layer comprising a metal oxide located over and directly contacting the another layer comprising the oxide of Ni and/or Cr, and a dielectric layer located over the layer comprising the metal oxide.
20. The coated article of claim 15, wherein the coated article has only one IR
reflecting layer comprising silver, is thermally tempered, and has a sheet resistance of no greater than 3.4 ohms/square.
21. A method of making a coated article, the method comprising:
providing a glass substrate;
forming a layer comprising silicon nitride or tin oxide on the glass substrate;
22 sputtering a ceramic target comprising zinc and oxygen in an atmosphere including at least an inert gas in order to form a layer comprising zinc oxide on the glass substrate over and directly contacting the layer comprising silicon nitride or tin oxide;
forming a layer comprising an oxide of Ni and/or Cr on the glass substrate over and directly contacting the layer comprising zinc oxide;
forming an infrared (IR) reflecting layer comprising silver on the glass substrate over and directly contacting the layer comprising an oxide of Ni and/or Cr;
and forming a dielectric layer over at least the IR reflecting layer.

22. The method of claim 21, further comprising sputter-depositing a layer comprising an oxide of titanium on the glass substrate so as to be located between at least the substrate and the layer comprising silicon nitride or tin oxide.
23. The method of claim 21, wherein the layer comprising silicon nitride or tin oxide, comprises silicon nitride.
24. The method of claim 21, further comprising thermally tempering the coated article.
25. The coated article of claim 1, wherein the coated article has a .DELTA.E*
value (transmissive and/or film side reflective) of no greater than 4.0 due to heat treatment.
26. The coated article of claim 1, wherein the coated article has a .DELTA.E*
value (transmissive and/or film side reflective) of no greater than 3.0 due to heat treatment.
CA2548366A 2005-06-07 2006-05-25 Coated article with ir reflecting layer and method of making same Expired - Fee Related CA2548366C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/146,274 2005-06-07
US11/146,274 US7597962B2 (en) 2005-06-07 2005-06-07 Coated article with IR reflecting layer and method of making same

Publications (2)

Publication Number Publication Date
CA2548366A1 true CA2548366A1 (en) 2006-12-07
CA2548366C CA2548366C (en) 2012-03-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2548366A Expired - Fee Related CA2548366C (en) 2005-06-07 2006-05-25 Coated article with ir reflecting layer and method of making same

Country Status (5)

Country Link
US (1) US7597962B2 (en)
EP (1) EP1734019B1 (en)
CA (1) CA2548366C (en)
ES (1) ES2626536T3 (en)
PL (1) PL1734019T3 (en)

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PL1734019T3 (en) 2017-09-29
CA2548366C (en) 2012-03-13
US20060275613A1 (en) 2006-12-07
EP1734019A2 (en) 2006-12-20
EP1734019B1 (en) 2017-03-08
US7597962B2 (en) 2009-10-06
ES2626536T3 (en) 2017-07-25

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