Article coated with a solar control coating having solar protection and thermal insulation
A coated article includes a substrate having a first surface and a second surface opposite the first surface with a solar control coating applied over the first surface or the second surface of the substrate. The solar control coating includes a first silicon aluminum nitride or silicon nitride layer over at least a portion of the substrate; a nickel-chromium alloy layer over and in direct contact with at least a portion of the silicon aluminum nitride or silicon nitride layer; and a second silicon aluminum nitride or silicon nitride layer over and in direct contact with at least a portion of the nickel-chromium alloy layer.
1 . A building comprising an architectural transparency, the architectural transparency comprising:
a glass substrate comprising a first surface and a second surface opposite the first surface; and
a solar control coating applied over the second surface of the substrate, the solar control coating consisting of:
a first silicon aluminum nitride layer over at least a portion of the second surface of the substrate, wherein the first silicon aluminum nitride layer comprises a total thickness of 7.9 nm to 10.6 nm;
a nickel-chromium alloy layer over and in direct contact with at least a portion of the first silicon aluminum nitride layer; and
a second silicon aluminum nitride layer over and in direct contact with at least a portion of the nickel-chromium alloy layer, wherein a ratio of the thickness of the first silicon aluminum nitride layer to the second silicon aluminum nitride layer is at least 1:2,
wherein the nickel-chromium alloy layer is substantially free of nitrogen and oxygen,
wherein the first silicon aluminum nitride layer and the second silicon aluminum nitride layer comprise from 10 wt. % to 20 wt. % aluminum, and
wherein the transparency has an exterior reflective aesthetic (Rfb*) value measured from the uncoated side of the transparency ranging from −10 to −5.
2 . The building of claim 1 , wherein the solar control coating is the only coating applied over second surface of the substrate.
3 . The building of claim 1 , wherein the nickel-chromium alloy layer comprises an alloy of 70 weight percent to 90 weight percent nickel and 10 weight percent to 30 weight percent chromium.
4 . The building of claim 1 , wherein the nickel-chromium alloy layer comprises a thickness in the range of 1 nanometer to 10 nanometers.
5 . The building of claim 1 , wherein the ratio of the thickness of the first silicon aluminum nitride layer to the thickness of the nickel-chromium alloy layer to the thickness of the second silicon aluminum nitride layer is 1-5:1:3-22.
6 . The building of claim 1 , wherein the ratio of the thickness of the first silicon aluminum nitride layer to the thickness of the nickel-chromium alloy layer to the thickness of the second silicon aluminum nitride layer is 1-4:1:4-20.
7 . The building of claim 1 , wherein the total thickness of the first silicon aluminum nitride layer and the nickel-chromium alloy layer is less than 25 nanometers.
8 . The building of claim 1 , wherein the ratio of the thickness of the first silicon aluminum nitride layer to the thickness of the second silicon aluminum nitride layer is least 1:3.
9 . The building of claim 1 , wherein the ratio of the thickness of the first silicon aluminum nitride layer to the thickness of the second silicon aluminum nitride layer is at least 1:4.
10 . The building of claim 1 , wherein the reflected interior L* value is not greater than 46, as measured from the surface comprising the solar control coating.
11 . The building of claim 1 , wherein the internal light reflection is less than 16 percent, as measured from the surface comprising the solar control coating.
12 . The building of claim 1 , wherein the architectural transparency is tempered.
13 . The building of claim 1 , wherein the second silicon aluminum nitride layer comprises a total thickness of 25 nm to 58 nm.
14 . The building of claim 1 , wherein the transparency has an exterior reflective aesthetic (Rfa*) value measured from the uncoated side of the transparency ranging from −4 to −2.