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Heat-fatigue-resisting slice-shaped aluminum oxide porous ceramic for LED lamp heat dissipating and preparing method of heat-fatigue-resisting slice-shaped aluminum oxide porous ceramic
Heat-fatigue-resisting slice-shaped aluminum oxide porous ceramic for LED lamp heat dissipating comprises, by weight, 34-36 parts of alpha-Al2O3 (the grain size ranges from 2 microns to 8 microns), 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 glycerol, 1.6-1.8 parts of nanometer tungsten carbide, 0.6-0.8 part of strontium carbonate, 0.3-0.5 part of boric acid, 0.6-0.8 part of bamboo charcoal micro mist, 4-5 parts of nanometer aluminum hydroxide, 1.2-1.5 parts of nano-copper and 0.9-1.1 parts of PVA binder. Hole channels among layers of the slice-shaped aluminum oxide porous ceramic are communicated with one another, and transition and the heat fatigue performance are good; by means of the nanometer tungsten carbide, the strontium carbonate, the boric acid and the bamboo charcoal micro mist, the heat fatigue resistance of the ceramic is improved, and service life is prolonged.
Heat-fatigue-resisting slice-shaped aluminum oxide porous ceramic for LED lamp heat dissipating and preparing method of heat-fatigue-resisting slice-shaped aluminum oxide porous ceramic
Heat-fatigue-resisting slice-shaped aluminum oxide porous ceramic for LED lamp heat dissipating comprises, by weight, 34-36 parts of alpha-Al2O3 (the grain size ranges from 2 microns to 8 microns), 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 glycerol, 1.6-1.8 parts of nanometer tungsten carbide, 0.6-0.8 part of strontium carbonate, 0.3-0.5 part of boric acid, 0.6-0.8 part of bamboo charcoal micro mist, 4-5 parts of nanometer aluminum hydroxide, 1.2-1.5 parts of nano-copper and 0.9-1.1 parts of PVA binder. Hole channels among layers of the slice-shaped aluminum oxide porous ceramic are communicated with one another, and transition and the heat fatigue performance are good; by means of the nanometer tungsten carbide, the strontium carbonate, the boric acid and the bamboo charcoal micro mist, the heat fatigue resistance of the ceramic is improved, and service life is prolonged.
Heat-fatigue-resisting slice-shaped aluminum oxide porous ceramic for LED lamp heat dissipating and preparing method of heat-fatigue-resisting slice-shaped aluminum oxide porous ceramic
DONG ZHAOHAI (author)
2015-11-11
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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