Glass ceramic and chemically strengthened glass
AssigneeAGC Inc.
InventorsSeiki Ohara, Qing Li, Shusaku Akiba
Life of this patent
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Abstract
The present invention relates to a glass ceramic including crystals, and including, in mol % in terms of oxides: 65-75% of SiO2; 3-6% of Al2O3; 15-25% of Li2O; 0.2-4% of P2O5; 0.5-5% of ZrO2; and 0.01-0.5% of HfO2, in which the crystals include one or more kinds of crystals selected from the group consisting of β-spodumene crystals, petalite crystals, and eucryptite crystals.
Claims13
A glass ceramic comprising crystals, and comprising, in mol % in terms of oxides:
- 65-69.9% of SiO2;
- 4-6% of Al2O3;
- 15-23% of Li2O;
- 1-6% of Na2O;
- 0.2-4% of P2O5;
- 0.1-3% B2O3;
- 0.5-3% of ZrO2;
- and
- 0.015-0.3% of HfO2,
- wherein the crystals comprise one or more kinds of crystals selected from the group consisting of β-spodumene crystals, petalite crystals, and eucryptite crystals.
A chemically strengthened glass comprising crystals, and comprising, in mol % in terms of oxides:
- 65-69.9% of SiO2;
- 4-6% of Al2O3;
- 15-23% of Li2O;
- 1-6% of Na2O;
- 0.2-4% of P2O5;
- 0.1-3% B2O3;
- 0.5-3% of ZrO2;
- and
- 0.015-0.3% of HfO2,
- wherein the crystals comprise one or more kinds of crystals selected from the group consisting of β-spodumene crystals, petalite crystals, and eucryptite crystals.
A glass ceramic comprising crystals, and comprising, in mol % in terms of oxides:
- 65-69.9% of SiO2;
- 3-6% of Al2O3;
- 15-23% of Li2O;
- 0-6% of Na2O;
- 0.2-4% of P2O5;
- 0-3% B2O3;
- 0.5-5% of ZrO2;
- and
- 0.015-0.5% of HfO2,
- wherein the crystals comprise one or more kinds of crystals selected from the group consisting of β-spodumene crystals, petalite crystals, and eucryptite crystals.
A chemically strengthened glass comprising crystals, and comprising, in mol % in terms of oxides:
- 65-69.9% of SiO2;
- 3-6% of Al2O3;
- 15-23% of Li2O;
- 0-6% of Na2O;
- 0.2-4% of P2O5;
- 0-3% B2O3;
- 0.5-5% of ZrO2;
- and
- 0.015-0.5% of HfO2,
- wherein the crystals comprise one or more kinds of crystals selected from the group consisting of β-spodumene crystals, petalite crystals, and eucryptite crystals.
Dependencies are inferred from the claim text.