Crystallized glass raw material, preparation method therefor and use thereof
AssigneeChongqing Aureavia Hi-tech Glass Co., Ltd.
InventorCheng Cheng
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Abstract
A crystallized glass raw material, characterized in that the crystallized glass raw material has a thickness of 0.02-5 mm, and the crystallized glass raw material has a crystallinity of 5-90 wt %. A preparation method for the crystallized glass raw material of the present invention has low processing difficulty and low processing cost; and the preparation method saves on time costs and also saves on energy for heat treatment.
Claims15
A 3D glass-ceramic, characterized in that the 3D glass-ceramic is produced by 3D hot bending using crystallized glass raw material, a hot bending time is within 30 min, a crystalline phase of the 3D glass-ceramic includes petalite and lithium disilicate, the crystallized glass raw material includes the following ratio of oxides in mol %:
- composition
- mol %
- SiO2
- 55%~74%
- Al2O3
- 3%~19%
- B2O3
- 0%~4%
- MgO
- 0%~6%
- Na2O
- 0%~3%
- Li2O
- 6%~25%
- K2O
- 0%~1%
- CaO
- 0-2%
- ZnO
- 0-5%
- rare earth oxide
- 0-3%
- wherein, the rare earth oxide being selected from one or two or more of La2O3, Eu2O3, Pr6O11, Nd2O3, Er2O3 and Dy2O3,
- the crystallized glass raw material has a thickness of 0.02-5 mm, the crystallized glass raw material has a crystallinity of 5-90 wt %, and the crystallized glass raw material has an average transmittance of 85-93% in a wavelength range of light of 380-780 nm.
Dependencies are inferred from the claim text.