Glass ceramic for chemical strengthening, chemically strengthened glass as well as application and electronic equipment of chemically strengthened glass

A technology of glass-ceramic and strengthened glass, applied in the field of glass, can solve the problems of less carrier for ion exchange, less alkali metal content, unfavorable ion exchange, etc.

Active Publication Date: 2019-09-10
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] For another example, although spinel glass-ceramics has certain mechanical strength, the content of alkali metal in this system is relatively small, and the carrier of ion exchange is relatively small

Method used

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  • Glass ceramic for chemical strengthening, chemically strengthened glass as well as application and electronic equipment of chemically strengthened glass
  • Glass ceramic for chemical strengthening, chemically strengthened glass as well as application and electronic equipment of chemically strengthened glass
  • Glass ceramic for chemical strengthening, chemically strengthened glass as well as application and electronic equipment of chemically strengthened glass

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Example Embodiment

[0089] Alkali aluminosilicate glass generally includes Al 2 O 3 , SiO 2 , Divalent metal oxides (such as MgO, CaO, BaO or ZnO, etc.), and alkali metal elements (such as Na, Li, etc.). The glass-ceramic of this application is based on the sodium aluminosilicate system. By adjusting the network intermediates and network modifiers in the system, the Na can be adjusted. + The distribution of ions to control ZrO 2 Crystallize to obtain ZrO 2 Crystal glass ceramics.

[0090] The inventor through a large number of experimental studies and results summary, the main conclusion drawn is: ZrO 2 Crystallization and Na in glass + The relative content and distribution of ions are closely related. Na in glass + Ions mainly have two distribution states: one is located in the glass phase as a network modifier; the other is distributed in [AlO 4 ] Tetrahedron and [ZnO 4 ] The surroundings of negatively charged polyhedrons such as tetrahedrons are used for charge compensation. When Na in glass + Th...

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Abstract

The embodiment of the invention provides a glass ceramic for chemical strengthening and chemically strengthened glass prepared by performing ion exchange on the glass ceramic. In addition, the embodiment of the invention furthermore provides application of the chemically strengthened glass and electronic equipment comprising the chemically strengthened glass. The glass ceramic for chemical strengthening is sodium aluminum silicate glass containing ZrO2 crystals. The glass ceramic is transparent in a visible wavelength. The glass ceramic is excellent in properties such as hardness, breaking strength, breaking tenacity and the like, has excellent scratch resistance, dropping resistance and the like, and can be chemically strengthened. Therefore, the chemically strengthened glass with excellent properties, such as scratch resistance, dropping resistance and the like, can be obtained.

Description

[0001] This application claims the priority of a Chinese patent application with the application number 201910230291.6 submitted to the China National Intellectual Property Office on March 25, 2019, and the title of the invention is "a chemically strengthenable transparent glass-ceramic and its preparation method", the entire content of which Incorporated in this application by reference. technical field [0002] The present application relates to the field of glass technology, in particular to a chemically strengthened glass-ceramic and a chemically strengthened glass. In addition, the present application also relates to the application of chemically strengthened glass, and an electronic device. Background technique [0003] With the rapid development of the electronic information industry, electronic products such as mobile phones, bracelets, and tablet computers have increasingly become necessities in daily life. These electronic products all have a display screen includ...

Claims

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Application Information

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IPC IPC(8): C03C10/02C03C21/00
CPCC03C10/0018C03C21/002
Inventor 刘超郭云岚许文彬黄义宏陈石峰
Owner HUAWEI TECH CO LTD
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