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CN-121990766-A - Glass plate, preparation method thereof, reinforced glass and electronic equipment

CN121990766ACN 121990766 ACN121990766 ACN 121990766ACN-121990766-A

Abstract

The application relates to a glass plate and a preparation method thereof, tempered glass and electronic equipment. The crystal phase of the glass plate comprises at least one of Y 2 Ti 2 O 7 、Y 2 Zr 2 O 7 、ZrO 2 、LiAlSi 2 O 6 , the crystallinity of the glass plate ranges from 30% to 40%, and the light transmittance of the glass plate is greater than or equal to 82%. The glass plate provided by the embodiment of the application has stronger strengthening capability.

Inventors

  • PENG ZHIGANG
  • DU XIAOOU
  • CHAI ZHENFEI
  • WU LEI
  • QIU JINGLONG

Assignees

  • OPPO广东移动通信有限公司
  • 河北省沙河玻璃技术研究院

Dates

Publication Date
20260508
Application Date
20241107

Claims (20)

  1. 1. A glass sheet, wherein a crystalline phase of the glass sheet comprises at least one of Y 2 Ti 2 O 7 、Y 2 Zr 2 O 7 、ZrO 2 、LiAlSi 2 O 6 , wherein a crystallinity of the glass sheet ranges from 30% to 40%, and wherein a light transmittance of the glass sheet is greater than or equal to 82%.
  2. 2. The glass sheet according to claim 1, wherein the grains of the glass sheet have a size of 16nm to 30nm.
  3. 3. The glass sheet of claim 1, wherein the glass sheet comprises, in mass fraction: 40 to 65wt% SiO 2 ; 15wt% to 30wt% al 2 O 3 ; 15wt% to 30wt% Y 2 O 3 ; 3 to 9wt% zno; 2 to 7wt% Li 2 O; 1 to 4wt% na 2 O; 0.5 to 3wt% TiO 2 ; 0.2 to 0.8wt% sb 2 O 3 ; ZrO 2 , and P 2 O 5 ; Wherein the mass ratio of ZrO 2 to P 2 O 5 is in the range of 1 to 8.
  4. 4. A glass sheet according to claim 3, wherein the mass fraction of ZrO 2 in the glass sheet is in the range of 2wt% to 6wt% and the mass fraction of P 2 O 5 is in the range of 0.5wt% to 3wt%.
  5. 5. The glass sheet of claim 1, wherein the glass sheet comprises, in mass fraction: 40 to 55wt% SiO 2 ; 20 to 30wt% Al 2 O 3 ; 20 to 30wt% Y 2 O 3 ; 4 to 8wt% zno; 3 to 5wt% li 2 O; 1.5 to 3.5wt% Na 2 O; 3 to 6wt% zro 2 ; 0.5 to 2wt% TiO 2 ; 0.5 to 2wt% P 2 O 5 , and 0.3 To 0.5wt% Sb 2 O 3 .
  6. 6. A glass sheet according to claim 3, wherein the glass sheet further comprises K 2 O, and wherein the sum of the mass fractions of K 2 O and Na 2 O in the glass sheet is less than the mass fraction of Li 2 O.
  7. 7. A glass sheet according to claim 3, wherein the mass ratio of K 2 O to Na 2 O in the glass sheet is in the range of 1/8 to 1/2.
  8. 8. A glass sheet according to claim 3, wherein the mass fraction of K 2 O in the glass sheet is less than or equal to 2wt%.
  9. 9. A glass sheet according to claim 3, wherein the glass sheet further comprises B 2 O 3 , the mass fraction of B 2 O 3 in the glass sheet being less than or equal to 3wt%.
  10. 10. A glass sheet, wherein the glass sheet comprises, in mass fraction: 40 to 65wt% SiO 2 ; 15wt% to 30wt% al 2 O 3 ; 15wt% to 30wt% Y 2 O 3 ; 3 to 9wt% zno; 2 to 7wt% Li 2 O; 1 to 4wt% na 2 O; 0.5 to 3wt% TiO 2 ; 0.2 to 0.8wt% sb 2 O 3 ; ZrO 2 , and P 2 O 5 ; Wherein the mass ratio of ZrO 2 to P 2 O 5 is in the range of 1 to 8.
  11. 11. The glass sheet according to claim 10, wherein the mass fraction of ZrO 2 is in the range of 2 wt.% to 6 wt.% and the mass fraction of P 2 O 5 is in the range of 0.5 wt.% to 3 wt.%.
  12. 12. The glass sheet of claim 10, wherein the glass sheet further comprises K 2 O, wherein the sum of the mass fractions of K 2 O and Na 2 O in the glass sheet is less than the mass fraction of Li 2 O.
  13. 13. The glass sheet of claim 10, wherein the mass ratio of K 2 O to Na 2 O in the glass sheet is in the range of 1/8 to 1/2.
  14. 14. The glass sheet of claim 10, wherein the glass sheet has a mass fraction of K 2 O of less than or equal to 2wt%.
  15. 15. The glass sheet of claim 10, wherein the glass sheet further comprises B 2 O 3 , the mass fraction of B 2 O 3 in the glass sheet being less than or equal to 3wt%.
  16. 16. The glass sheet of claim 10, wherein the glass sheet satisfies at least one of the following conditions: The crystalline phase of the glass sheet comprises at least one of Y 2 Ti 2 O 7 、Y 2 Zr 2 O 7 、ZrO 2 、LiAlSi 2 O 6 ; the glass sheet has a crystallinity in the range of 30% to 40%; The size of the crystal grains of the glass plate is 16nm to 30nm; the light transmittance of the glass plate is greater than or equal to 82%.
  17. 17. A method of making a glass sheet, the method comprising: Providing glass powder; molding the glass powder to obtain a glass substrate, and Crystallizing the glass substrate to obtain a glass plate; Wherein the crystalline phase of the glass sheet comprises at least one of Y 2 Ti 2 O 7 、Y 2 Zr 2 O 7 、ZrO 2 、LiAlSi 2 O 6 , the crystallinity of the glass sheet ranges from 30% to 40%, and the light transmittance of the glass sheet is greater than or equal to 82%.
  18. 18. The method of producing a glass sheet according to claim 17, wherein the shaping the glass powder to obtain a glass substrate comprises: Melting the glass powder at a temperature of 1500-1600 ℃ to obtain glass liquid; pouring the molten glass into a mold with the temperature of 300-450 ℃ for molding to obtain a glass ingot, and And carrying out heat treatment on the glass ingot at the temperature of 500-600 ℃ to obtain the glass substrate.
  19. 19. The method of producing a glass sheet according to claim 17, wherein the crystallizing the glass substrate to obtain a glass sheet comprises: Nucleation of the glass substrate at 650 ℃ to 730 ℃ and And (3) carrying out grain growth on the glass substrate at 750-850 ℃ to obtain the glass plate.
  20. 20. A strengthened glass obtained by chemical strengthening of the glass sheet of any one of claims 1-16.

Description

Glass plate, preparation method thereof, reinforced glass and electronic equipment Technical Field The application relates to the field of glass reinforcement, in particular to a glass plate and a preparation method thereof, reinforced glass and electronic equipment. Background In recent years, high-performance transparent glass ceramics are applied to intelligent product protection materials because of the high transmittance and high strength of the glass ceramics. The high-performance glass ceramics used in the consumer electronics field at present are lithium aluminum silicon glass system (LAS system) glass ceramics, and the system glass ceramics has higher crystallinity content and is mainly formed by combining one or more crystal phases of nano-scale petalite, lithium disilicate, spinel and the like. However, the glass ceramics of the LAS system has no outstanding strengthening capability and has to be improved. Disclosure of Invention The embodiment of the application provides a glass plate, which has stronger strengthening capability. In a first aspect, embodiments of the present application provide a glass sheet having a crystalline phase including at least one of Y2Ti2O7、Y2Zr2O7、ZrO2、LiAlSi2O6, a crystallinity in a range from 30% to 40%, and a light transmittance of 82% or more. In a second aspect, embodiments of the present application also provide a glass sheet comprising, in mass fraction: 40 to 65wt% SiO 2; 15wt% to 30wt% al 2O3; 15wt% to 30wt% Y 2O3; 3 to 9wt% zno; 2 to 7wt% Li 2 O; 1 to 4wt% na 2 O; 0.5 to 3wt% TiO 2; 0.2 to 0.8wt% sb 2O3; ZrO 2, and P2O5; Wherein the mass ratio of ZrO 2 to P 2O5 is in the range of 1 to 8. In a third aspect, embodiments of the present application further provide a method for manufacturing a glass sheet, the method comprising: Providing glass powder; Shaping the glass powder to obtain a glass substrate, and Crystallizing the glass substrate to obtain a glass plate; Wherein the crystalline phase of the glass sheet comprises at least one of Y2Ti2O7、Y2Zr2O7、ZrO2、LiAlSi2O6, the crystallinity of the glass sheet ranges from 30% to 40%, and the light transmittance of the glass sheet is greater than or equal to 82%. In a fourth aspect, embodiments of the present application also provide a tempered glass obtained by chemically strengthening the glass sheet of the first or second aspect of the present application. In a fifth aspect, an embodiment of the present application further provides an electronic device, including: The display screen is provided with a light-emitting surface; The tempered glass of the fourth aspect of the present application is provided on the light-emitting surface of the display screen, and And the processor is electrically connected with the display screen and used for controlling the display screen to display. The embodiment of the application provides a glass plate, wherein a crystal phase of the glass plate comprises at least one of Y2Ti2O7、Y2Zr2O7、ZrO2、LiAlSi2O6, the crystallinity of the glass plate ranges from 30% to 40%, the light transmittance of the glass plate is greater than or equal to 82％.Y2Ti2O7、Y2Zr2O7、ZrO2、LiAlSi2O6 crystal phase, so that crystal grains of the glass plate are approximately spherical, the approximately spherical crystal grains can better prevent crack propagation, and accordingly the glass plate has higher fracture toughness and bending strength, in addition, the glass plate has more proper crystallinity, and therefore the glass plate has higher bending strength and fracture toughness and higher chemical strengthening capability, and furthermore, the light transmittance of the glass plate is greater than or equal to 82%, and has higher light transmittance, and when the glass plate is applied to a protective cover plate of a display screen, the display screen has better display effect. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art. FIG. 1 is a schematic view of a glass sheet according to an embodiment of the present application. FIG. 2 is a schematic flow chart of a method for producing a glass sheet according to an embodiment of the present application. FIG. 3 is a schematic flow chart of a method for preparing a glass substrate according to an embodiment of the application. FIG. 4 is a schematic flow chart of a crystallization process of a glass substrate according to an embodiment of the application. Fig. 5 is a schematic structural view of a tempered glass according to an embodiment of the present application. FIG. 6 is a schematic flow chart of a method for producing tempered glass according to an embodiment of the presen