Substrates with alkali depletion region
AssigneeCorning Incorporated
InventorsCody Vic Cushman, Charles Thomas McLaren, Chukwudi Azubuike Okoro, Robert Anthony Schaut, Nicholas James Smith
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Abstract
An article that includes a substrate with a first surface and a second surface and that has a bulk region and a surface modified region, the bulk region being integral with the surface modified region, and the surface modified region being at the first surface of the substrate. The bulk region including a higher concentration of at least one alkali than the surface modified region, and where a metal coating is disposed on the first surface of the substrate.
Claims20
An article comprising:
- a substrate with a first surface and a second surface and comprising a bulk region and a surface modified region, the bulk region being integral with the surface modified region, and the surface modified region being at the first surface of the substrate,
- the bulk region comprising a higher concentration of at least one alkali than the surface modified region;
- and
- a metal coating disposed on the first surface of the substrate.
A method of forming a modified surface region on a substrate, the method comprising:
- depositing a metal coating on a first surface of the substrate;
- creating an electrical potential difference across the substrate while depositing the metal coating on the first surface of the substrate;
- and
- forming the modified surface region on the first surface of the substrate due to the electrical potential difference across the substrate,
- the modified surface region being integral with a bulk region of the substrate, and
- the modified surface region comprising a lower concentration of at least one alkali than the bulk region of the substrate.
Dependencies are inferred from the claim text.