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Glass-ceramic for chemical strengthening, chemically strengthened glass, its application, and electronic equipment

A technology of glass-ceramics and electronic equipment, which is applied in chemically strengthened glass, glass-ceramics for chemical strengthening, application of chemically strengthened glass, and electronic equipment, and can solve the problem of unfavorable ion exchange, less carriers for ion exchange, and less alkali metal content And other issues

Active Publication Date: 2021-09-14
HUAWEI TECH CO LTD
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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; and most of the Al in this system 3+ The ions participate in the crystallization, the remaining content in the glass phase is less, and the glass structure is denser, so it is not conducive to ion exchange

Method used

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  • Glass-ceramic for chemical strengthening, chemically strengthened glass, its application, and electronic equipment
  • Glass-ceramic for chemical strengthening, chemically strengthened glass, its application, and electronic equipment
  • Glass-ceramic for chemical strengthening, chemically strengthened glass, its application, and electronic equipment

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Embodiment Construction

[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 the present application is based on the sodium aluminum silicate system. By adjusting the network intermediates and network modifiers in the system, the Na + The distribution state of ions, thereby controlling the ZrO 2 Crystallization of ZrO containing ZrO 2 Crystalline glass-ceramic.

[0090] The main conclusions drawn by the inventor through a large amount of experimental research and effect summary are: ZrO 2 Crystallization and Na in glass + The relative content and distribution of ions are closely related. Na in glass + The 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 ] around negatively charged polyhedrons such as tetrahedrons are used for charge c...

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Abstract

The embodiments of the present application provide a glass-ceramic for chemical strengthening, and a chemically strengthened glass obtained by ion-exchanging the glass-ceramic. In addition, the embodiment of the present application also provides the application of the chemically strengthened glass, and an electronic device including the chemically strengthened glass. Glass-ceramic for chemical strengthening contains ZrO 2 Crystalline sodium aluminosilicate glass that is transparent in the visible light range. The glass-ceramic has good properties such as hardness, flexural strength, and fracture toughness, and has good properties such as scratch resistance and drop resistance. Moreover, the glass-ceramic can be chemically strengthened, so as to obtain a chemically strengthened glass with better performances such as scratch resistance and drop resistance.

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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Patent Type & Authority Patents(China)
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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