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A kind of aluminosilicate glass ceramics and its preparation method and product

A technology of glass-ceramic and glass phase, which is applied in the field of glass materials and can solve the problems of drop resistance drop and scratches

Active Publication Date: 2022-02-18
HUAWEI MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, glass is a brittle material, which is easily scratched by other sharp objects in daily life; at the same time, the drop resistance of glass is lower than other materials, so the drop performance of glass is especially broken on rough ground. Screen capability has become an industry pain point

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  • A kind of aluminosilicate glass ceramics and its preparation method and product
  • A kind of aluminosilicate glass ceramics and its preparation method and product
  • A kind of aluminosilicate glass ceramics and its preparation method and product

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Embodiment Construction

[0043] In the microcrystalline aluminosilicate glass provided by the embodiment of the present invention, microcrystallization treatment is performed on the aluminosilicate glass to crystallize inside the glass to produce tiny grains, and the formed grains are dispersed in the glass phase, increasing the fracture of the glass Toughness, which enables the glass to resist large energy impacts and reduce the ability of crack propagation. At the same time, the elastic modulus and surface hardness of the glass also increase with the addition of crystals, so that when the glass is subjected to stress impact, the strain becomes smaller and the deformation becomes smaller, which further reduces the crack propagation ability. In addition, the glass can also be chemically strengthened, and the mechanical properties of the glass can be further strengthened through ion exchange. The main chemical composition of the glass-ceramic is shown in Table 1:

[0044]

[0045]

[0046] Table...

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Abstract

The embodiment of the present invention provides an aluminosilicate glass-ceramic and its preparation method and product. In addition to the glass phase, its main crystal phase includes 5%‑30% MgAl by volume 2 o 4 Crystalline, 10%‑30% Li 2 Si 2 o 5 And 5%‑30% of quartz and quartz solid solution, and the balance is other unavoidable impurities. This unavoidable impurity may include the formation of MgAl 2 o 4 Crystal, Li 2 Si 2 o 5 Intermediate products of crystal or quartz and quartz solid solution, and other unavoidable impurities in the glass manufacturing process.

Description

technical field [0001] The present application relates to the field of glass materials, in particular to an aluminosilicate glass-ceramic and its manufacturing method and product. Background technique [0002] At present, glass materials are widely used as materials for screen covers and exterior casings of various electronic devices. Compared with conventional metal and plastic three-stage casings, glass casings are more effective in device display, touch experience, appearance texture, etc. It has obvious advantages in terms of innate high light transmittance and high hardness, and the sense of technology and high-end appearance and touch brought by decoration are naturally attractive to end users. Therefore, users are often willing to pay for similar electronic products. Spend more money on high-end looking glass enclosure products. [0003] A wide variety of electronic products (such as smart phones, smart watches, tablet computers, etc.) usually have communication func...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/08C03B32/02C03C21/00
CPCC03C10/0045C03B32/02C03C21/002C03C3/085C03C10/0027C03C3/097C03C10/0009
Inventor 黄开文胡邦红吕旺春司合帅唐中帜
Owner HUAWEI MACHINERY