Double silver low-emissivity and solar control coatings
First Claim
1. A low-emissivity coating on a substrate, the coating comprising, in numerical order outward from the substrate,a first layer including at least one layer selected from titanium oxide layers and silicon nitride layers;
- a second layer including Ag;
a third layer including at least one layer selected from titanium oxide layers and silicon nitride layers;
a fourth layer including Ag; and
a fifth layer including silicon nitride, whereinat least one of the second layer and the fourth layer consists of, in numerical order outward from the substrate,a first sublayer, which includes a zinc oxide and which is from 6 to 7 nm thick;
a second sublayer, which includes Ag; and
a third sublayer, which includes a first oxidized metal.
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Abstract
A low-emissivity multilayer coating includes, in order outward from the substrate, a first layer including a layer containing titanium oxide, a layer containing silicon nitride, or a sublayer layer containing titanium oxide in combination with a sublayer containing silicon 5 nitride, a second layer including Ag, a third layer including at least one layer selected from titanium oxide layers and silicon nitride layers, a fourth layer including Ag, and a fifth layer including silicon nitride, where the color of the coatings can be varied over a wide range by controlling the thicknesses of the layers of titanium oxide, silicon nitride and Ag.
128 Citations
19 Claims
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1. A low-emissivity coating on a substrate, the coating comprising, in numerical order outward from the substrate,
a first layer including at least one layer selected from titanium oxide layers and silicon nitride layers; -
a second layer including Ag; a third layer including at least one layer selected from titanium oxide layers and silicon nitride layers; a fourth layer including Ag; and a fifth layer including silicon nitride, wherein at least one of the second layer and the fourth layer consists of, in numerical order outward from the substrate, a first sublayer, which includes a zinc oxide and which is from 6 to 7 nm thick; a second sublayer, which includes Ag; and a third sublayer, which includes a first oxidized metal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 18, 19)
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14. A low-emissivity coating on a transparent substrate, the coating comprising, in numerical order outward from the substrate,
a first layer, which includes a silicon nitride and which is from 5 to 30 nm thick; -
a second layer, which includes a zinc oxide and which is from 6 to 7 nm thick; a third layer which includes Ag and which is from 8 to 16 nm thick; a fourth layer, which includes a first oxidized Ni—
Cr alloy directly on the Ag of the third layer and which is from 2 to 8 nm thick;a fifth layer, which includes a silicon nitride and which is from 45 to 90 nm thick; a sixth layer, which includes a zinc oxide and which is from 6 to 7 nm thick; a seventh layer, which includes Ag and which is from 8 to 24 nm thick; an eighth layer, which includes a second oxidized Ni—
Cr alloy directly on the Ag of the seventh layer and which is from 2 to 8 nm thick; anda ninth layer, which includes a silicon nitride and which is from 25 to 60 nm thick. - View Dependent Claims (15, 16, 17)
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Specification