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Multilayer YAG-Tm:YAG-YAG-Ho:YAG-YAG composite laser ceramic as well as preparation method and application thereof

A composite ceramic and laser technology, applied in the field of materials, can solve the problems of interface scattering on composite surfaces and affect material properties, and achieve the effects of large area, high production efficiency and simple process

Active Publication Date: 2015-01-07
RENMIN UNIVERSITY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the application of the traditional tablet molding process in the preparation of composite materials, there will be serious interfacial scattering on the composite surface, which will greatly affect the performance of the material, especially in the application of transparent ceramics

Method used

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  • Multilayer YAG-Tm:YAG-YAG-Ho:YAG-YAG composite laser ceramic as well as preparation method and application thereof
  • Multilayer YAG-Tm:YAG-YAG-Ho:YAG-YAG composite laser ceramic as well as preparation method and application thereof
  • Multilayer YAG-Tm:YAG-YAG-Ho:YAG-YAG composite laser ceramic as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] According to the stoichiometric ratio Y 3 al 5 o 12 Accurately weigh Y 2 o 3 (99.99% pure) 53.1521g, Al 2 o 3 (purity is 99.99%) 39.886g, weighs Al according to mass ratio of ball material 3:1 and solvent to powder mass ratio 35:65 2 o 3 279.14g of grinding balls, mixed solvent of ethanol and xylene (mass ratio of ethanol to xylene: 2:3), 21.664g of ethanol, 31.758g of xylene, and weighing 3.7402g of herring oil and 0.5wt% of herring oil according to the powder mass fraction of 4wt%. Measure 0.4648g of tetraethyl orthosilicate as a dispersant and auxiliary agent respectively, and then carry out the first ball milling for 16-24 hours, the ball milling speed is 230r / min, and the ambient temperature is 16-23°C. Then weigh the PAG of 2.7911g and the BBP of 2.7911g as plasticizer by mass fraction 3wt%, weigh the PVB of 5.5825g by 6wt% mass fraction as binding agent, weigh 1.6781g by the mass fraction of 1.5wt% Cyclohexanone is used as a defoamer, and the second ball ...

Embodiment 2

[0062] The content of dispersing agent is changed from 4wt% to 5wt% among the embodiment 1, and other conditions are the same as embodiment 1.

[0063] Figure 5 is the fluorescence characteristic of the product obtained in this example. It can be seen from the figure that the product can realize fluorescence output and has the conditions to realize 2088nm laser output.

Embodiment 3

[0065] The content of the binder polyvinyl butyral PVB in Example 2 was changed from 6wt% to 9wt%, and other conditions were the same as in Example 2.

[0066] Figure 6 is the fluorescence characteristic of the product obtained in this example. It can be seen from the figure that the product can realize fluorescence output and has the conditions to realize 2088nm laser output.

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PUM

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Abstract

The invention discloses a multilayer YAG-Tm:YAG-YAG-Ho:YAG-YAG composite laser ceramic as well as a preparation method and application thereof. The composite ceramic is prepared by the following steps: by taking commercial raw material powder aluminum oxide (Al2O3), yttrium oxide (Y2O3), thulium oxide (Tm2O3) and holmium oxide (Ho2O3) as raw materials, by adopting tetraethoxysilane (TEOS) as a sintering aid, adding a certain amount of organic additives, performing ball-milling for a certain time under a planetary ball mill, thereby obtaining the needed slurry; performing processes such as defoaming, tape casting, laminating and compounding and isostatic compaction on the slurry, fully degreasing the green body under oxygen or air conditions, and finally performing high-temperature vacuum sintering and annealing treatment. The method is simple in process and high in production efficiency and can be widely applied to the fields of electronics, materials and energy, preparation of large-area ultrathin ceramic materials can be realized, and textured preparation of the ceramics can be realized.

Description

technical field [0001] The invention belongs to the field of materials, and relates to an optical functional ceramic, in particular to a multilayer YAG-Tm:YAG-YAG-Ho:YAG-YAG composite laser ceramic and a preparation method and application thereof. Background technique [0002] Yttrium aluminum garnet (YAG) single crystal or polycrystalline has good mechanical and optical properties, and is widely considered as an excellent laser host material. In 1964, YAG single crystal was first prepared abroad, and then in 1971, a large-sized neodymium (Nd)-doped Nd:YAG single crystal was prepared, which promoted the development and application of YAG system lasers. In 1995, Ikssue and others successfully prepared highly transparent neodymium (Nd)-doped Nd:YAG polycrystalline ceramics for the first time by using tablet molding and high-temperature vacuum sintering technology, and realized laser output, which opened up a new era for rare earth-doped highly transparent YAG ceramics. new fi...

Claims

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Application Information

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IPC IPC(8): C04B35/50C04B35/622
CPCC04B35/44C04B35/50C04B35/505C04B35/622C04B35/632C04B35/6342C04B2235/3222C04B2235/3224C04B2235/3225
Inventor 曹永革王文超朱辰唐飞袁轩一王方宇麻朝阳
Owner RENMIN UNIVERSITY OF CHINA
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