SURFACE-MODIFIED GLASS SUBSTRATE
First Claim
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1. A glass substrate, comprising:
- a glass main body having opposing major surfaces; and
a layer having a thickness provided over a majority of a first major surface, wherein at least a portion of the thickness of the layer comprises a Berkovich indenter hardness of at least 10 GPa and an x-ray amorphous structure, and wherein the layer comprises at least one attribute selected from the group consisting of;
an optical transparency of at least 70%; and
a compressive stress of at least 10 MPa.
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Abstract
Scratch-resistant glass substrates including a hard, scratch-resistant layer over a major surface of the substrate are disclosed. The layer may exhibit a hardness, as measured using a Berkovich indenter, of at least 10 GPa and an x-ray amorphous structure along at least a portion of the thickness of the layer. The layer may optionally exhibit an optical transparency of at least 70% and/or a compressive stress of at least 10 MPa.
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Citations
26 Claims
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1. A glass substrate, comprising:
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a glass main body having opposing major surfaces; and a layer having a thickness provided over a majority of a first major surface, wherein at least a portion of the thickness of the layer comprises a Berkovich indenter hardness of at least 10 GPa and an x-ray amorphous structure, and wherein the layer comprises at least one attribute selected from the group consisting of; an optical transparency of at least 70%; and a compressive stress of at least 10 MPa. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A glass substrate, comprising:
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a glass main body having opposing major surfaces; and a layer having a thickness provided over a majority of a first major surface, wherein at least a portion of the thickness of the layer comprises a Berkovich indenter hardness of at least 10 GPa and an x-ray amorphous structure, and wherein the glass substrate exhibits a scratch width reduction, when scratched using a Berkovich indenter and a load of at least 60 mN, of at least 35%, when compared to a glass main body without the layer provided over a majority of a first major surface. - View Dependent Claims (24)
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25. A glass substrate, comprising:
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a glass main body having opposing major surfaces; and a layer having a thickness provided over a majority of a first major surface, wherein at least a portion of the thickness of the layer comprises a Berkovich indenter hardness of at least 10 GPa and an x-ray amorphous structure, and wherein the glass substrate exhibits a scratch depth reduction, when scratched using a Berkovich indenter and a load of up to about 160 mN, of at least 35%, when compared to a glass main body without the layer provided over a majority of a first major surface. - View Dependent Claims (26)
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Specification