Coatings with low emissivity and coefficient of SOLAR heat gains, improved chemical and mechanical properties, and its manufacturing method

摘要

1 has a low-emissivity coating on a substrate comprising, in order from the substrate outwardly: a first dielectric layer! a first layer of silver! the first protective layer! the first absorbent layer! a second dielectric layer! a second silver layer! the second absorbent layer! a third dielectric layer, and! optionally topcoat layer! wherein either the first absorbent layer, or the second absorbent layer is also used if necessary. ! 2. The coating of claim 1, further comprising a second protective layer between the second silver layer and the second absorption layer. ! 3. The coating of claim 1, wherein at least one of said first dielectric layer, second dielectric layer and the third dielectric layer has a substoichiometric composition. ! 4. The coating of claim 3, wherein each of said first dielectric layer, second dielectric layer and the third dielectric layer has a substoichiometric composition. ! 5. The coating of claim 1, further comprising: a first crystallized layer between the first dielectric layer and the first Ag layer. ! 6. The coating of claim 1, further comprising: a second crystallized layer between the second dielectric layer and the second Ag layer. ! 7. The coating of claim 1, wherein the first absorbent layer and a second absorbent layer each separately comprise a material selected from the group consisting of metal, alloy, silicide, oxide and nitride absorbent. ! 8. The coating of claim 1, wherein the first absorbent layer and a second absorbent layer each separately comprise a material selected from the group consisting of Ti, TiN, Si, NiCr, NiCrOh, Cr, Zr, Mo, W