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Phase-change heat-conduction material for optical-fiber laser, preparation method and application method

A fiber laser, phase change heat conduction technology, applied in lasers, laser parts, heat exchange materials, etc., to ensure stable operation, prevent overflow and outflow, and improve the effect of heat dissipation

Active Publication Date: 2018-12-14
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the contrary, there are few reports on its application as a thermally conductive material.

Method used

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  • Phase-change heat-conduction material for optical-fiber laser, preparation method and application method
  • Phase-change heat-conduction material for optical-fiber laser, preparation method and application method
  • Phase-change heat-conduction material for optical-fiber laser, preparation method and application method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Weigh respectively by mass percentage: In of 56% content, Sn of 17% content, Bi of 20% content, Al of 1% content, Ga of 5% content, put into mixing tank and mix on the mixer Uniform;

[0024] (2) Put the uniformly mixed raw materials into a crucible, put the crucible into a temperature-programmed muffle furnace, and raise the temperature of the muffle furnace to 700°C under vacuum conditions with a heating rate of 5°C / min. After reaching the set temperature, keep it for another 1 hour to ensure that the metal is fully fused;

[0025] (3) Keep the vacuum condition, and cool the muffle furnace to room temperature with a cooling rate of 3° C. / min to obtain a low melting point metal alloy. The melting point of the alloy is 50° C. measured by a melting point apparatus;

[0026] (4) Process the prepared low-melting-point metal alloy by an inert gas atomization method, and add 1% paraffin wax to obtain a powdery phase-change heat-conducting material;

[0027] (5) Put a s...

Embodiment 2

[0031] (1) Weigh respectively by mass percentage: In of 56% content, Sn of 18% content, Bi of 20% content, Al of 1% content, Ga of 4% content, put into mixing tank and mix on the mixer Uniform;

[0032] (2) Put the uniformly mixed raw materials into a crucible, put the crucible into a temperature-programmed muffle furnace, and raise the temperature of the muffle furnace to 700°C under vacuum conditions with a heating rate of 5°C / min. After reaching the set temperature, keep it for another 1 hour to ensure that the metal is fully fused;

[0033] (3) Keeping the vacuum condition, the muffle furnace is cooled to room temperature with a cooling rate of 3°C / min to obtain a low melting point metal alloy, and the melting point of the alloy is 57°C as measured by a melting point apparatus;

[0034] (4) Process the prepared low-melting-point metal alloy by an inert gas atomization method, and add 1% paraffin wax to obtain a powdery phase-change heat-conducting material;

[0035] (5) ...

Embodiment 3

[0039] (1) Weigh respectively by mass percentage: In of 56% content, Sn of 18% content, Bi of 21% content, the Al of 1% content, the Ga of 3% content, put into mixing tank and mix on the mixer Uniform;

[0040] (2) Put the uniformly mixed raw materials into a crucible, put the crucible into a temperature-programmed muffle furnace, and raise the temperature of the muffle furnace to 700°C under vacuum conditions with a heating rate of 5°C / min. After reaching the set temperature, keep it for another 1 hour to ensure that the metal is fully fused;

[0041] (3) Keeping the vacuum condition, the muffle furnace is cooled to room temperature with a cooling rate of 3°C / min to obtain a low melting point metal alloy, and the melting point of the alloy is 63°C as measured by a melting point apparatus;

[0042] (4) Process the prepared low-melting-point metal alloy by an inert gas atomization method, and add 1% paraffin wax to obtain a powdery phase-change heat-conducting material;

[00...

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Abstract

The invention discloses a phase-change heat-conduction material for an optical-fiber laser, a preparation method and an application method. The phase-change heat-conduction material is prepared from the following components in percentage by mass: 55-58 wt % of indium, 17-20 wt% of tin, 20-25 wt% of bismuth, 1-2 wt% of aluminum, 0.5-5 wt% of gallium and 1-2 wt% of paraffin. In an application, firstly, a small amount of the heat-conduction material is put at the bottom of a heat sink groove, a double-clad optical fiber is placed into the groove, and then a gap between the optical fiber and the groove is fully filled with the heat-conduction material, so that the optical fiber is fully wrapped in the heat-conduction material, wherein the thickness of the heat-conduction material is not largerthan the depth of the groove. Finally, the top of the optical fiber groove and a heat sink surface is coated with heat-conduction sealing glue, so that the optical fiber and the heat-conduction material are sealed in the groove. The material is low in melting point and high in heat conductivity coefficient, and high-efficiency conduction of heat generated when the high-power optical-fiber laser works can be realized, and normal and stable operation of the high-power fiber-laser can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of heat-conducting materials, in particular to a phase-change heat-conducting material for fiber lasers, a preparation method and an application method. Background technique [0002] At present, fiber lasers have been widely used in many fields such as communication, medical treatment, precision processing, scientific research and national defense. As the power of fiber lasers continues to increase, especially for a single fiber with an output of kilowatts or even tens of thousands of watts, thermal effects will accumulate. If only the natural convection and radiation heat transfer between the fiber cladding and air It is not enough to solve the thermal effect problem. At this time, the large surface area and volume ratio of the optical fiber can no longer meet the heat dissipation requirements of the laser. Therefore, efficient thermal management methods must be adopted to ensure that the fiber laser has a...

Claims

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Application Information

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IPC IPC(8): C09K5/06C09K5/14H01S3/042H01S3/067
CPCC09K5/063C09K5/14H01S3/042H01S3/06708
Inventor 戴晓军蔡华强何亭潘忠奔张衍盖景刚
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS