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.
Claims31
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;
- sputtering a solar control multi-layer coating including at least one layer comprising silver (Ag) and/or nickel chrome (NiCr) onto a surface of the glass substrate so that the solar control multi-layer coating and the layer comprising DLC are formed on opposite sides of the glass substrate,
- heat treating the glass substrate with each of the solar control multi-layer coating, 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 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;
- sputtering a solar control multi-layer coating onto another surface of the glass substrate so that the solar control coating and the layer comprising DLC are formed on opposite sides of the glass substrate
- heat treating the glass substrate with each of the solar control multi-layer coating, 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.
The method of claim 15, further comprising removing at least part of the protective layer from the glass substrate after the heat treating but before the coupling of the glass substrate to the another substrate.
Dependencies are inferred from the claim text.