Glass-ceramic for laser protection and preparation method thereof

A technology of laser protection and glass-ceramics, which is applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., to achieve low expansion coefficient, good thermal shock and mechanical shock resistance

Active Publication Date: 2018-01-12
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-band laser protective glass-ceramic material and its preparation method for the deficiencies of existing absorbing laser protective materials

Method used

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  • Glass-ceramic for laser protection and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of laser protective glass-ceramic material of the present invention and preparation method thereof are as follows:

[0021] a. The oxidation composition of the basic glass is: SiO 2 (54wt%), Al 2 o 3 (22wt%), Li 2 O (4.3wt%), SrO (5wt%), MgO (5wt%), B 2 o 3 (1.5wt%), Na 2 O (0.4wt%), TiO 2 (3wt%), ZrO 2 (2wt%), Er 2 o 3 (2wt%), Bi 2 o 3 (0.5wt%), Co 2 o 3 (0.2wt%), Sb 2 o 3 (0.1 wt%). Correspondingly, the raw materials used are chemically pure chemical raw materials, corresponding to: silica, alumina powder, lithium carbonate, strontium carbonate, magnesium carbonate, boric acid, soda ash, titanium oxide, zirconia, erbium oxide, oxide Bismuth, cobalt trioxide and antimony trioxide.

[0022] b. Use the above-mentioned chemical raw materials for glass batching, including batching calculation, weighing, mixing and other processes.

[0023] c. Put the glass batch material into a corundum crucible and melt it in a silicon-molybdenum furnace with a te...

Embodiment 2

[0029] a. The oxidation composition of the basic glass is: SiO 2 (59wt%), Al 2 o 3 (20wt%), Li 2 O (4wt%), SrO (3wt%), MgO (3wt%), B 2 o 3 (0.5wt%), Na 2 O (0.5wt%), TiO 2 (2wt%), ZrO 2 (3wt%), Er 2 o 3 (3wt%), Bi 2 o 3 (1.5wt%), Co 2 o 3 (0.3wt%), Sb 2 o 3 (0.2 wt%). Correspondingly, the raw materials used are chemically pure chemical raw materials, corresponding to: silica, alumina powder, lithium carbonate, strontium carbonate, magnesium carbonate, boric acid, soda ash, titanium oxide, zirconia, erbium oxide, oxide Bismuth, cobalt trioxide and antimony trioxide.

[0030] b. Use the above-mentioned chemical raw materials for glass batching, including batching calculation, weighing, mixing and other processes.

[0031] c. Put the glass batch material into a corundum crucible and melt it in a silicon-molybdenum furnace with a temperature range of 1600°C for 5 hours. The molten glass is cast into a plate shape in a hot graphite mold, and then placed in a muffl...

Embodiment 3

[0036] a. The oxidation composition of the basic glass is: SiO 2 (64wt%), Al 2 o 3 (18wt%), Li 2 O (3wt%), SrO (3wt%), MgO (3wt%), B 2 o 3 (1wt%), Na 2 O (0.5wt%), TiO 2 (2.5wt%), ZrO 2 (2wt%), Er 2 o 3 (2wt%), Bi 2 o 3 (0.5wt%), Co 2 o 3 (0.2wt%), Sb 2 o 3 (0.3 wt%). Correspondingly, the raw materials used are chemically pure chemical raw materials, corresponding to: silica, alumina powder, lithium carbonate, strontium carbonate, magnesium carbonate, boric acid, soda ash, titanium oxide, zirconia, erbium oxide, oxide Bismuth, cobalt trioxide and antimony trioxide.

[0037] b. Use the above-mentioned chemical raw materials for glass batching, including batching calculation, weighing, mixing and other processes.

[0038] c. Put the glass batch material into a corundum crucible and melt it in a silicon-molybdenum furnace with a temperature range of 1620°C for 6 hours. The molten glass is cast into a plate shape in a hot graphite mold, and then placed in a muffl...

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Abstract

The invention discloses a glass ceramic material for laser protection and a preparation method of the glass ceramic material. Base glass of the glass ceramic material comprises the following oxidized components: SiO2 (54wt%-64wt%), Al2O3 (18wt%-22wt%), Li2O (3wt%-5wt%), SrO (3wt%-5wt%), MgO (3wt%-5wt%), B2O3 (0.5wt%-1.5wt%), Na2O (0.4wt%-0.8wt%), TiO2 (2wt%-3wt%), ZrO2 (2wt%-3wt%), Er2O3 (2wt%-3wt%), Bi2O3 (0.5wt%-1.5wt%), Co2O3 (0.2wt%-0.4wt%) and Sb2O3 (0.1wt%-0.3wt%). The obtained glass ceramic has specific absorption capability at various laser bands in a range from 300-1,000 nm (expect 805-815 nm and 975-985 nm), so that the transmissivity of laser in the bands is lower than 20%.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a glass-ceramic material for laser protection and a preparation method thereof. Background technique [0002] Laser has the characteristics of good directionality, high brightness, good monochromaticity and high energy density. The laser industry based on lasers is developing rapidly in the world, and has been widely used in industrial production, communication, information processing, medical and health, military, cultural education, and scientific research. A laser weapon is a directed energy weapon that uses a directional laser beam to directly damage or disable a target. Laser weapons pose a great threat to the human body and equipment. The eye is the most sensitive organ of the human body to laser light. Due to the focusing effect of the eye on the light, the energy density on the retina can be increased by 10 5 Therefore, low-dose exposure can caus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/14C03B19/02
CPCC03B19/02C03C10/0009
Inventor 何峰谢峻林
Owner WUHAN UNIV OF TECH
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