Li2O-Al2O3-SiO2 crystallized glass and crystallizable glass and method for making the same
OwnerKuo-Chuan Hsu, Dawei Liu +1inventors
InventorsKuo-Chuan Hsu, Dawei Liu, Hairong Bao
Life of this patent
Estimating the term…
Abstract
An Li2O—Al2O3—SiO2 crystallizable glass comprises a base ingredient, and P2O5 or F. The base ingredient comprises 58.0-65.0 wt % SiO2, 19.0-26.0 wt % Al2O3, 3.7-5.5 wt % Li2O, 0.5-4.0 wt % TiO2, 1.0-3.0 wt % ZrO2, 0.2-3.0 wt % MgO, 0-3.0 wt % ZnO, 0-4.0 wt % BaO, 0.4-1.5 wt % As2O3, 0-1.5 wt % Sb2O3, and 0-2.0 wt % Na2O+K2O. The total content of SiO2 and Al2O3 is 80.0-87.0 wt %.
Claims25
An Li2O—Al2O3—SiO2 crystallizable glass comprising:
- a base ingredient comprising at least Li2O, Al2O3 and SiO2;
- and
- 0.5-4.0 wt % P2O5 relative to 100 wt % of the base ingredient.
An Li2O—Al2O3—SiO2 crystallizable glass comprising:
- a base ingredient comprising at least Li2O, Al2O3 and SiO2;
- and
- 1.0-3.0 wt % F relative to 100 wt % of the base ingredient.
An Li2O—Al2O3—SiO2 transparent crystallized glass having a β-quartz solid solution produced as a main crystal, the transparent crystallized glass comprising:
- a base ingredient comprising at least Li2O, Al2O3 and SiO2;
- and
- 0.5-4.0 wt % P2O5 relative to 100 wt % of the base ingredient.
An Li2O—Al2O3—SiO2 opaque crystallized glass having a β-spodumene solid solution produced as a main crystal, the opaque crystallized glass comprising:
- a base ingredient comprising at least Li2O, Al2O3 and SiO2;
- and
- 1.0-3.0 wt % F relative to 100 wt % of the base ingredient.
A method for producing Li2O—Al3O3—SiO2 crystallizable glass, the method comprising the steps of:
- (a) preparing a raw material by mixing a base ingredient with 0.5-4.0 wt % P2O5 relative to 100 wt % of the base ingredient, the base ingredient comprising 58.0-65.0 wt % SiO2, 19.0-26.0 wt % Al2O3, 3.7-5.5 wt % Li2O, 0.5-4.0 wt % TiO2, 1.0-3.0 wt % ZrO2, 0.2-3.0 wt % MgO, 0-3.0 wt % ZnO, 0-4.0 wt % BaO, 0.4-1.5 wt % As2O3, 0-1.5 wt % Sb2O, , and 0-2.0 wt % Na2O+K2O, the total content of SiO2 and Al2O3 being 80.0-87.0 wt %;
- (b) melting the raw material;
- and
- (c) shape forming the molten raw material so as to form the Li2O—Al2O3—SiO2 crystallizable glass.
A method for producing Li2O—Al2O3—SiO2 crystallizable glass, the method comprising the steps of:
- (a) preparing a raw material by mixing a base ingredient with 1.0-3.0 wt % F relative to 100 wt % of the base ingredient, the base ingredient comprising 58.0-65.0 wt % SiO2, 19.0-26.0 wt % Al2O3, 3.7-5.5 wt % Li2O, 0.5-4.0 wt % TiO2, 1.0-3.0 wt % ZrO2, 0.2-3.0 wt % MgO, 0-3.0 wt % ZnO, 0-4.0 wt % BaO, 0.4-1.5 wt % As2O3, 0-1.5 wt % Sb2O3, and 0-2.0 wt % Na2O+K2O, the total content of SiO2 and Al2O3 being 80.0-87.0 wt %;
- (b) melting the raw material;
- and
- (c) shape forming the molten raw material so as to form the Li2O—Al2O3—SiO2 crystallizable glass.
A method for producing Li2O—Al2O3—SiO2 transparent crystallized glass having a β-quartz solid solution produced as a main crystal, the method comprising the steps of:
- (a) preparing a raw material by mixing a base ingredient with 0.5-1.5% B2O3 relative to 100 wt % of the base ingredient and 0.5-4.0 wt % P2O5 relative to 100 wt % of the base ingredient, the base ingredient comprising 58.0-65.0 wt % SiO2, 19.0-26.0 wt % Al2O3, 3.7-5.5 wt % Li2O, 0.54.0 wt % TiO2, 1.0-3.0 wt % ZrO2, 0.2-3.0 wt % MgO, 0-3.0 wt % ZnO, 0-4.0 wt % BaO, 0.4-1.5 wt % As2O3, 0-1.5 wt % Sb2O3, and 0-2.0 wt % Na2O+K2O, the total content of SiO2 and Al2O3 being 80.0-87.0 wt %;
- (b) heating the raw material to a temperature ranging from 1540-1600° C. for 6-15 hours so as to melt the raw material;
- (c) shape forming the molten raw material so as to form a Li2O—Al2O3—SiO2 crystallizable glass;
- (d) heating the Li2O—Al2O3—SiO2 crystallizable glass to a temperature ranging from 700-760° C. for 1-4 hours for nucleation of the Li2O—Al2O3—SiO2 crystallizable glass;
- and
- (e) heating the Li2O—Al2O3—SiO2 crystallizable glass to a temperature ranging from 800-880° C. for 1-3 hours for crystal growth of the Li2O—Al2O3—SiO2 crystallizable glass so as to form the Li2O—Al2O3—SiO2 transparent crystallized glass having a β-quartz solid solution produced as a main crystal.
A method for producing Li2O—Al2O3—SiO2 opaque crystallized glass having a β-spodumene solid solution produced as a main crystal, the method comprising the steps of:
- (a) preparing a raw material by mixing a base ingredient with 1.0-4.0% B2O3 relative to 100 wt % of the base ingredient and 1.0-3.0 wt % F relative to 100 wt % of the base ingredient, the base ingredient comprising 58.0-65.0 wt % Si2, 19.0-26.0 wt % Al2O3, 3.7-5.5 wt % Li2O, 0.5-4.0 wt % TiO2, 1.0-3.0 wt % ZrO2, 0.2-3.0 wt % MgO, 0-3.0 wt % ZnO, 0-4.0 wt % BaO, 0.4-1.5 wt % As2O3, 0-1.5 wt % Sb2O3, and 0-2.0 wt % Na2O+K2O, the total content of SiO2 and Al2O3 being 80.0-87.0 wt %;
- (b) heating the raw material to a temperature ranging from 1520-1600° C. for 6-15 hours so as to melt the raw material;
- (c) shape forming the molten raw material so as to form a Li2O—Al2O2—SiO2 crystallizable glass;
- (d) heating the Li2O—Al2O3—SiO2 crystallizable glass to a temperature ranging from 640-720° C. for 0.5-2 hours for nucleation of the Li2O—Al2O3—SiO2 crystallizable glass;
- and
- (e) heating the Li2O—Al2O3—SiO2 crystallizable glass to a temperature ranging from 780-890° C. for 0.5-2 hours for crystal growth of the Li2O—Al2O3—SiO2 crystallizable glass so as to form the Li2O—Al2O3—SiO2 opaque crystallized glass having a β-spodumene solid solution produced as a main crystal.
An Li2O—Al2O3—SiO2 crystallizable glass comprising:
- a base ingredient comprising 58.0-65.0 wt % SiO2, 19.0-260 wt % Al2O3, 3.7-5.5 wt % Li2O, 0.5-4.0 wt % TiO2, 1.0-3.0 wt % ZrO2, 0.2-3.0 wt % MgO, 0-3.0 wt % ZnO, 0-4.0 wt % BaO, 0.4-1.5 wt % As2O3, 0-1.5 wt % Sb2O3, and 0-2.0 wt % Na2O+K2O, the total content of SiO2 and Al2O3 being 80.0-87.0 wt %;
- and
- 0.5-4.0 wt % B2O3 relative to 100 wt % of the base ingredient.
Dependencies are inferred from the claim text.