Coated article including low-emissivity coating insulating glass unit including coated article, and/or methods of making the same

Patent metadata

Field	Value
Publication number	US-9751801-B2
Application number	US-201313738163-A
Country	US
Kind code	B2
Filing date	Jan 10, 2013
Priority date	Feb 24, 2011
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

Certain example embodiments relate to a coated article including at least one infrared (IR) reflecting layer of a material such as silver or the like in a low-E coating, and methods of making the same. In certain cases, at least one layer of the coating is of or includes nickel and/or titanium (e.g., Ni x Ti y O z ). The provision of a layer including nickel titanium and/or an oxide thereof may permit a layer to be used that has good adhesion to the IR reflecting layer, and reduced absorption of visible light (resulting in a coated article with a higher visible transmission). When a layer including nickel titanium oxide is provided directly over and/or under the IR reflecting layer (e.g., as a barrier layer), this may result in improved chemical and mechanical durability. Thus, visible transmission may be improved if desired, without compromising durability; or, durability may simply be increased.

First claim

What is claimed is:

1. A method of making an insulated glass (IG) unit including a coated article including a coating supported by a glass substrate, the method comprising making the coated article via steps comprising:
disposing at least one first dielectric layer on the substrate;
disposing a first layer comprising Ag on the at least one first dielectric layer;
disposing at least one second dielectric layer over the first layer comprising Ag;
disposing a second layer comprising Ag on the at least one second dielectric layer;
disposing a first layer comprising Ni and Ti over and contacting the second layer comprising Ag;
disposing at least one third dielectric layer on the first layer comprising Ni and Ti;
disposing a third layer comprising Ag on the at least one third dielectric layer;
disposing a second layer comprising Ni and Ti over and contacting the third layer comprising Ag;
disposing at least one fourth dielectric layer on the second layer comprising Ni and Ti; and
wherein each of the first and second layers comprising Ni and Ti has a metal content of from about 10-30% Ni and from about 70-90% Ti

and making the IG unit via steps comprising:
providing the coated article made in accordance with the above recited steps;
positioning a second substrate in substantially parallel spaced apart relation to the coated article so as to form a gap therebetween;
providing an edge seal between the coated article and the second substrate,
wherein the coating of the coated article is provided on surface 2 or surface 3 of the IG unit; and
wherein the IG unit has a LSG of greater than or equal to 2.15.

2. The method of claim 1 , wherein the coating has a sheet resistance of less than or equal to about 1.2.

3. The method of claim 2 , wherein the coated article has a visible transmission of at least 65%.

4. The method of claim 1 , wherein the second substrate and the substrate of the coated article are each about 6 mm thick, and wherein the gap between the coated article and the second substrate is about 12 mm.

5. The method of claim 1 , wherein the first dielectric layer comprises zinc oxide, and wherein the first layer comprising Ag is located on and directly contacting the first dielectric layer.

6. The method of claim 5 , wherein the fourth dielectric layer comprises silicon nitride.

7. The method of claim 1 , wherein at least one of the layers comprising Ni and Ti is from 10-45 angstroms thick.

Assignees

• Guardian Industries
• Guardian Glass Llc
• Centre Luxembourgeois De Rech Pour Le Verre Et La Ceram S A (C R V C )

Inventors

• Frank Marcus
• Dietrich Anton
• Miller Greg
• Blacker Richard
• Imran Muhammad
• Lemmer Jean-Marc

Classifications

• C03C17/366

  Low-emissivity or solar control coatings · CPC title

• Y10T156/10

  Methods of surface bonding and/or assembly therefor · CPC title

• C03C17/3626 Primary

  one layer at least containing a nitride, oxynitride, boronitride or carbonitride · CPC title

• C03C17/3652

  the coating stack containing at least one sacrificial layer to protect the metal from oxidation · CPC title

• C03C17/3639

  Multilayers containing at least two functional metal layers · CPC title