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Preparation method of flexible transparent ceramic film

A transparent ceramic and thin film technology, applied in the field of inorganic ceramic materials, can solve the problems of unsuitable for mass production, expensive test equipment, thin film thickness, etc., and achieve the effect of good quality, easy control of parameters, and simple steps

Inactive Publication Date: 2015-11-11
惠宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many methods for preparing ceramic thin films, such as: sol-gel method (sol-gel method), PVD (inorganic vapor deposition method), CVD (chemical vapor deposition method), single crystal growth method, but these methods require expensive experiments Equipment, high cost, and thin film thickness, rigid, not easy to bend, not suitable for mass production

Method used

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  • Preparation method of flexible transparent ceramic film
  • Preparation method of flexible transparent ceramic film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Press molding of ceramic body:

[0022] Under the condition of a pressure of 100Mpa, the alumina ceramic powder with a particle size of 300 mesh and a purity of 99.9% was used as a raw material to press a cylindrical ceramic green body with a height of 1mm and a diameter of 30mm. Pre-sintered at 500°C for 30 minutes, and the obtained ceramic body was taken out and dried for later use;

[0023] (2) Laser scanning sintering:

[0024] Using CO 2 The laser scans and sinters a circular surface of the ceramic body. The scanning speed of the laser scanning sintering is 100mm / s, and the laser power is 130W. A layer of transparent ceramic film is formed on the surface of the ceramic body, such as figure 1 As shown, it can be seen that the ceramic surface becomes dense and smooth after melting, and the SEM image of the unmelted part of the ceramic body after optical scanning and sintering is shown in figure 2 As shown, it can be seen that the surface ceramics are stacked...

Embodiment 2

[0028] Under the condition of a pressure of 150Mpa, the alumina ceramic powder with a particle size of 300 mesh and a purity of 99.9% was used as a raw material to press a cylindrical ceramic green body with a height of 1mm and a diameter of 30mm. Pre-sintered at 800°C for 20 minutes, and the obtained ceramic body was taken out and dried for later use;

[0029] (2) Laser scanning sintering:

[0030] Using CO 2 The laser scans and sinters a circular surface of the ceramic body, the scanning speed of the laser scanning sintering is 50mm / s, and the laser power is 30W, forming a layer of transparent ceramic film on the surface of the ceramic body;

[0031] (3) Preparation of film:

[0032] Coat the surface of the transparent ceramic film in step (2) with organic transparent glue and high-transparency epoxy resin glue, then put it in an oven, and dry it at 60°C for 40 minutes. After the organic glue is dried and cured, put the The remaining part of the ceramic body is polished o...

Embodiment 3

[0034] Under the condition of a pressure of 200Mpa, the alumina ceramic powder with a particle size of 300 mesh and a purity of 99.9% was used as a raw material to press a cylindrical ceramic green body with a height of 1mm and a diameter of 30mm. Pre-sintered at 1000°C for 10 minutes, and the obtained ceramic body was taken out and dried for later use;

[0035] (2) Laser scanning sintering:

[0036] Using CO 2 The laser scans and sinters a circular surface of the ceramic body. The scanning speed of the laser scanning sintering is 80mm / s, the laser power is 100W, and a layer of transparent ceramic film is formed on the surface of the ceramic body;

[0037] (3) Preparation of film:

[0038] Coat the surface of the transparent ceramic film in step (2) with organic transparent glue and high-transparency epoxy resin glue, then put it in an oven, and dry it at 80°C for 10 minutes. After the organic glue is dried and cured, put the The remaining part of the ceramic body is polish...

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Abstract

The present invention belongs to the technical field of inorganic ceramic materials, and in particular relates to a preparation method of a flexible transparent ceramic film. The present invention is as below: first pressing a ceramic body into a cylindrical body; scanning and sintering a circular surface of the ceramic body by using CO2 laser; forming a transparent ceramic film on the ceramic body surface; coating an organic transparent glue on the surface of the transparent ceramic film; then drying in an oven to dry and solidify the organic glue; polishing off the remaining portion of the ceramic body besides the transparent ceramic film by a grinding machine, so as to obtain the remaining part which is a double transparent structure of transparent ceramic film and organic transparent glue. The invention has low cost, does not require complicated steps and large sophisticated equipment; and the obtained transparent film is dense and smooth, and has good quality.

Description

technical field [0001] The invention belongs to the technical field of inorganic ceramic materials, and in particular relates to a preparation method of a flexible transparent ceramic film. Background technique [0002] With the development of science and technology, transparent ceramic films are widely used in many fields, such as microelectronics, electronic packaging, high-frequency information transmission, LED and other fields. [0003] At present, there are many methods for preparing ceramic thin films, such as: sol-gel method (sol-gel method), PVD (inorganic vapor deposition method), CVD (chemical vapor deposition method), single crystal growth method, but these methods require expensive experiments Equipment, high cost, and thin film thickness, rigid, not easy to bend, not suitable for mass production. Contents of the invention [0004] Aiming at the problems existing in the prior art, the present invention provides a method for preparing a flexible transparent ce...

Claims

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Application Information

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IPC IPC(8): C04B35/622C04B35/64
Inventor 惠宇王松子任庆国杨俊莲冯旭潘锐许冰刘徐
Owner 惠宇