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Nano carbon-aluminum composite heat conduction material and application thereof in preparation of high-power LED light source radiator

A heat-conducting material and aluminum composite technology, applied in the direction of light sources, lighting and heating equipment, semiconductor devices of light-emitting elements, etc., can solve the problems of large thermal expansion coefficient and deformation, achieve low thermal expansion coefficient, high thermal conductivity, and reduce thermal expansion coefficient Effect

Active Publication Date: 2021-10-22
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the technical problem that the existing heat-conducting aluminum alloy has a large thermal expansion coefficient and is easily deformed by temperature, the present invention provides a nano-carbon-aluminum composite heat-conducting material; the nano-carbon-aluminum composite heat-conducting material and the existing heat-conducting aluminum alloy have a smaller coefficient of thermal expansion compared to

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 Preparation of nano carbon-aluminum composite thermally conductive materials

[0033] Material weight components: 80 aluminum; 2 silicon; 1 iron; 0.2 zinc; 0.2 parts of ruthenium; zinc carbon nanotubes; 20 parts of single wall carbon nanotubes;

[0034] Preparation method: melt aluminum, then add silicon, iron, zinc, strontium, copper, stirred and mix, then add a single-walled carbon nanotube and ketanate stirring uniform alloy liquid, and finally remove the alloy liquid, slag , Casting the nanocarbon compound thermally conductive material.

Embodiment 2

[0035] Example 2 Preparation of nanocarbon compound thermally conductive materials

[0036] Material weight components: 80 aluminum; 2 parts of silicon; 1 iron; zinc 0.3; zerium 0.2 parts; 3 copper; 20 parts of single-walled carbonate;

[0037] The modified titanate is prepared by the method: (1) 60 parts by weight of the titanium titanate, 20 parts by weight of the lanthanium oxide and 20 parts by weight of the niobium oxide are mixed into the ball mill, and the ball mill is grinded. Body 1; (2) Put the ball mill 1 at 870 ° C for 30min; (3) Put the pre-mixture into the ball mill for ball mill, resulting in the ball mill 2; resulting ball mill 2 That is, the modified titanate.

[0038] Preparation method: melt aluminum, then add silicon, iron, zinc, strontium, copper, and stir well after melt, then add a single wall carbon nanotube and modified titanate stirring and uniform alloy liquid, and finally remove the alloy liquid. Slap slag, casting the nanocarbon compound thermally cond...

Embodiment 3

[0039] Example 3 Preparation of Nanocarbon Compound Conductance Materials

[0040] Material weight composition: 70 aluminum; 3 parts of silicon; 2 parts of iron; zinc 0.1 parts; zerium 0.1 parts; 0.1 copper; 3 carbon nanotubes; 15 copies;

[0041] The modified titanate was prepared by the following method: (1) 70 parts by weight of the titanate, 10 parts by weight of the lanthanium oxide and 20 parts by weight of the niobium oxide were mixed into the ball mill, and the ball mill Body 1; (2) Put the ball mill 1 at 870 ° C for 30min; (3) Put the pre-mixture into the ball mill for ball mill, resulting in the ball mill 2; resulting ball mill 2 That is, the modified titanate.

[0042] Preparation method: melt aluminum, then add silicon, iron, zinc, strontium, copper, and stir well after melt, then add a single wall carbon nanotube and modified titanate stirring and uniform alloy liquid, and finally remove the alloy liquid. Slap slag, casting the nanocarbon compound thermally conductive...

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Abstract

The invention discloses a nano carbon-aluminum composite heat conduction material and application thereof in preparation of a high-power LED light source radiator. The nano carbon-aluminum composite heat conduction material comprises the following raw materials in parts by weight: 70-100 parts of aluminum; 1-3 parts of silicon; 0.5 to 2 parts of iron; 0.1 to 1 part of zinc; 0.1 to 1 part of strontium; 0.01 to 0.1 part of copper; 0.1 to 1 part of a carbon nanotube; and 15 to 30 parts of bismuth titanate or modified bismuth titanate. The nano carbon-aluminum composite heat conduction material disclosed by the invention has relatively low thermal expansion coefficient and relatively high thermal conductivity, and therefore, by applying the nano carbon-aluminum composite heat conduction material to preparation of the high-power LED light source radiator, the heat dissipation efficiency of the high-power LED light source radiator can be improved, and the situation that the high-power LED light source radiator deforms when used in the environment with a large temperature difference is reduced.

Description

Technical field [0001] The present invention relates to the technical field of aluminum alloy, and more particularly to a nanocarbon composite thermally conductive material and its application in the preparation of high power LED light source heat sink. Background technique [0002] Aluminum alloy is an alloy prepared in aluminum-based, which has high strength, conductive, thermal conductivity, and good casting properties, and therefore has in the fields of aerospace, aviation, transportation, architecture, electromechanical and other fields. A wide range of applications. [0003] Chinese Invention 201611038514.1 discloses a thermally conductive aluminum alloy and its application thereof, including: 5.0-11.0% by weight of Si, 0.4-1.0% by weight of Fe, 0.2-1.0% by weight Mg, less than 0.1% by weight Zn, less than 0.1% by weight of Mn, less than 0.1% by weight of SR and less than 0.1% by weight of Cu. The tensile strength of the thermally conductive aluminum alloy is not less than ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/10C01G29/00F21V29/85
CPCC22C21/003C22C1/1036C01G29/00F21V29/85F21Y2115/10
Inventor 张鹏林志丹李卫曹琳
Owner JINAN UNIVERSITY
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