Method of making window unit including diamond-like carbon (DLC) coating
AssigneeGuardian Industries Corp.
InventorVijayen S. Veerasamy
Life of this patent
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Abstract
A method of making a coated article (e.g., window unit), and corresponding coated article are provided. A layer of or including diamond-like carbon (DLC) is formed on a glass substrate. Then, a protective layer is formed on the substrate over the DLC inclusive layer. During heat treatment (HT), the protective layer prevents the DLC inclusive layer from significantly burning off. Thereafter, the resulting coated glass substrate may be used as desired, it having been HT and including the protective DLC inclusive layer.
Claims54
A method of making an insulating glass (IG) window unit, the method comprising:
- providing a glass substrate;
- forming a layer comprising diamond-like carbon (DLC) on the glass substrate;
- forming a protective layer on the glass substrate over the layer comprising DLC;
- heat treating the glass substrate with the layer comprising DLC and the protective layer thereon so that during the heat treating the protective layer prevents significant burnoff of the layer comprising DLC, wherein the heat treating comprises heating the glass substrate to temperature(s) sufficient for thermal tempering;
- and
- after the heat treating, coupling the glass substrate with at least the layer comprising DLC thereon to another substrate in making the IG window unit.
A method of making a vehicle windshield, the method comprising:
- providing a glass substrate;
- forming a layer comprising diamond-like carbon (DLC) on the glass substrate;
- forming a protective layer on the glass substrate over the layer comprising DLC;
- heat treating the glass substrate with the layer comprising DLC and the protective layer thereon, wherein the heat treating comprises heating the glass substrate to temperature(s) sufficient for bending the glass substrate;
- and
- after the heat treating, laminating the glass substrate with at least the layer comprising DLC thereon to another substrate via at least a polymer inclusive interlayer in making the vehicle windshield.
A method of making a coated article, the method comprising:
- providing a glass substrate;
- forming a layer comprising diamond-like carbon (DLC) on the glass substrate;
- forming a protective layer on the glass substrate over the layer comprising DLC;
- heat treating the glass substrate with the layer comprising DLC and the protective layer thereon, and
- wherein the heat treating comprises heating the glass substrate using at least temperature(s) of at least 580 degrees C., in an atmosphere including oxygen, for a time period sufficient for at least one of bending and thermally tempering the glass substrate.
A coated article comprising:
- a glass substrate that is thermally tempered and/or bent;
- a layer comprising diamond-like carbon (DLC) supported by the glass substrate;
- and
- a protective layer comprising a carbide provided on the glass substrate over the layer comprising DLC.
Dependencies are inferred from the claim text.