Coated glass substrate and method for making the same
AssigneeAgc Glass Europe
InventorValentin GOFFINET
Life of this patent
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Abstract
A glazing includes a glass substrate having, on at least one major surface of the glass substrate, a coating that includes an alternating arrangement of n silver infrared radiation reflecting functional layers and n+1 dielectric coatings, with n≥1, such that each functional layer is surrounded by dielectric coatings. At least one dielectric coating is in direct contact with at least one infrared reflecting functional layer and includes, at a distance of up to 10 nm from the at least one infrared reflecting functional layer, silver nanoparticles having a diameter ranging from 1 to 5 nm.
Claims13
A glazing comprising a glass substrate and comprising, on at least one major surface of the glass substrate, a coating comprising an alternating arrangement of n infrared radiation reflecting functional layers comprising silver, and n+1 dielectric coatings, with n≥1,
- wherein each functional layer is surrounded by dielectric coatings,
- wherein at least one dielectric coating is in direct contact with at least one infrared reflecting functional layer and the at least one dielectric coating comprises, at a distance of up to 10 nm from said at least one infrared reflecting functional layer, silver nanoparticles having a diameter ranging from 1 to 5 nm.
A process for improving the corrosion resistance of a coated glass substrate, comprising:
- a. providing a glass substrate comprising on a major surface a coating comprising an alternating arrangement of n infrared radiation reflecting functional layers comprising silver, and n+1 dielectric coatings, with n≥1, such that each functional layer is surrounded by dielectric coatings, wherein at least one dielectric coating is in direct contact with at least one infrared reflecting functional layer;
- b. providing a source gas selected from O2 or N2, He, Ne, Ar, or Kr;
- c. ionizing the source gas so as to form positively charged ions of O, N, He, Ne, Ar, or Kr;
- d. accelerating the positively charged ions of O, N, He, Ne, Ar, or Kr with an acceleration voltage so as to form an ion beam,
- e. positioning the glass substrate in a trajectory of the beam of positively charged ions of O, N, He, Ne, Ar, or Kr with the coating facing the beam and setting an acceleration voltage at a value of from 5 kV to 100 kV, so as to implant the ions throughout said at least one infrared reflecting functional layer.
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Dependencies are inferred from the claim text.