Composition for glass, nano microcrystalline glass and preparation method and application thereof

A technology of nano-crystallite and glass-ceramic, which is applied in glass manufacturing equipment, glass tempering, manufacturing tools, etc. It can solve the problems of poor light transmittance and stress layer depth of glass-ceramic, and achieve good light transmittance, Good resistance to falling and meeting the performance requirements

Pending Publication Date: 2021-11-26
河南旭阳光电科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to overcome the defects of poor light transmittance and stress layer depth in glass-ceramics in the prior art

Method used

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  • Composition for glass, nano microcrystalline glass and preparation method and application thereof
  • Composition for glass, nano microcrystalline glass and preparation method and application thereof
  • Composition for glass, nano microcrystalline glass and preparation method and application thereof

Examples

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Embodiment 1

[0081] This example is used to illustrate that the composition for glass according to the present invention is prepared according to the formula and process parameters in Table 1, and the method as described below to prepare nano-glass ceramics.

[0082] The method for preparing nano glass ceramics comprises the following steps:

[0083] (1) Contact and mix the components in the composition for glass shown in Table 1 to obtain a mixed material, and heat and melt the mixed material to obtain a molten material;

[0084] Among them, the conditions of contact mixing are: the stirring speed is 20 rpm, the temperature is 25°C, and the time is 5 minutes; the conditions of heating and melting are: the temperature is 1500°C, and the time is 4 hours;

[0085] (2) performing nucleation treatment and crystallization treatment on the molten material prepared above in sequence to obtain a glass-ceramic precursor;

[0086] Among them, the conditions of the nucleation treatment are: the temp...

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Abstract

The invention relates to the technical field of microcrystalline glass, and discloses a composition for glass, nano microcrystalline glass and a preparation method and application thereof. On the basis of the total mass of the composition for the glass, the composition for the glass contains 48 to 60 mass percent of SiO2, 25 to 35 mass percent of Al2O3, 5 to 10 mass percent of Na2O, 0 to 2 mass percent of K2O, 0 to 2 mass percent of B2O3, 2 to 6 mass percent of ZrO2, 1 to 3 mass percent of Li2O, 1.5 to 5 mass percent of TiO2 and 1 to 4 mass percent of P2O5. The nano microcrystalline glass formed by adopting the composition for glass provided by the invention not only has good light transmittance, but also has good mechanical properties such as drop resistance, compression resistance, aging resistance and the like.

Description

technical field [0001] The invention relates to the technical field of glass ceramics, in particular to a composition for glass, nano glass ceramics and a preparation method and application thereof. Background technique [0002] Cover glass has been continuously upgraded and selected in the field of smartphones in recent years. Although the strength, hardness, drop resistance and scratch resistance have been continuously improved, due to the short distance of the force between molecules and the fragile microstructure of atomic bonds The reason is that it is very easy to break, and this has become the biggest shortcoming of glass in the field of mobile phone applications. [0003] Nanocrystalline transparent glass is commonly known as glass crystal or ceramic glass. The manufacture of nanocrystalline transparent glass is actually a glass modification process. Metal oxide grains are added as crystal seeds during the glass production process. By adding a new high-temperature cr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/097C03C10/00C03B32/02C03B27/03C03C21/00H04M1/18
CPCC03C3/097C03C10/00C03C10/0018C03B32/02C03B27/03C03C21/002H04M1/185
Inventor 李青李赫然张小军陈英郭志胜张克俭王海周李刚
Owner 河南旭阳光电科技有限公司
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