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High-rigidity high-power sheet aluminum oxide porous ceramic used for LED lamp heat dissipation and preparation method thereof
High-rigidity high-power sheet aluminum oxide porous ceramic used for LED lamp heat dissipation comprises, by weight, 34-36 parts of alpha-Al2O3 (the particle size is 2 micrometers-8 micrometers), 100-105 parts of deionized water, 0.2-0.3 part of sodium polyacrylate, 2-2.3 parts of methylcellulose, 1.6-1.8 parts of glycerin, 1.2-1.5 parts of halloysite nanotubes, 0.2-0.4 part of succinic anhydride, 0.8-1.1 parts of titanium boride, 0.6-0.8 part of stearic acid boron, 4-5 parts of nano-aluminium hydroxide, 1.2-1.5 parts of nano-copper and 0.9-1.1 parts of PVA adhesion agents. Through using the nano-copper, the compatibility between the ceramic and metal is improved, and the problem that when the metal and the ceramic are compounded, because two-phase thermal expansion coefficients are not matched, cracking and ineffectiveness are generated in the using process is solved; through using the halloysite nanotubes, the titanium boride and the stearic acid boron, the toughness, hardness and abrasion resistance of the ceramic are improved.
High-rigidity high-power sheet aluminum oxide porous ceramic used for LED lamp heat dissipation and preparation method thereof
High-rigidity high-power sheet aluminum oxide porous ceramic used for LED lamp heat dissipation comprises, by weight, 34-36 parts of alpha-Al2O3 (the particle size is 2 micrometers-8 micrometers), 100-105 parts of deionized water, 0.2-0.3 part of sodium polyacrylate, 2-2.3 parts of methylcellulose, 1.6-1.8 parts of glycerin, 1.2-1.5 parts of halloysite nanotubes, 0.2-0.4 part of succinic anhydride, 0.8-1.1 parts of titanium boride, 0.6-0.8 part of stearic acid boron, 4-5 parts of nano-aluminium hydroxide, 1.2-1.5 parts of nano-copper and 0.9-1.1 parts of PVA adhesion agents. Through using the nano-copper, the compatibility between the ceramic and metal is improved, and the problem that when the metal and the ceramic are compounded, because two-phase thermal expansion coefficients are not matched, cracking and ineffectiveness are generated in the using process is solved; through using the halloysite nanotubes, the titanium boride and the stearic acid boron, the toughness, hardness and abrasion resistance of the ceramic are improved.
High-rigidity high-power sheet aluminum oxide porous ceramic used for LED lamp heat dissipation and preparation method thereof
DONG ZHAOHAI (Autor:in)
28.10.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2015
Sheet alumina porous ceramic for LED lamp heat dissipation and preparation method thereof
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2015