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Flake alumina porous ceramic used for packaging high-power LED and preparation method thereof
Flake alumina porous ceramic used for packaging a high-power LED is prepared with, by weight, 34-36 parts of alpha-Al<2>O<3> (the particle size ranges from 2-8 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, 3-4 parts of mullite whisker, 2-3 parts of GaN, 0.4-0.6 part of sodium potassium tartrate tetrahydrate, 3-4 parts of In<2>O<3>, 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. According to the flake alumina porous ceramic, by means of the nano-aluminium hydroxide, the phenomenon that the alumina particles are prone to agglomeration is improved; by means of the mullite whisker, GaN and In<2>O<3>, the ceramic is better in heat dissipation performance, and the ceramic is more applicable to the package of the high-power LED.
Flake alumina porous ceramic used for packaging high-power LED and preparation method thereof
Flake alumina porous ceramic used for packaging a high-power LED is prepared with, by weight, 34-36 parts of alpha-Al<2>O<3> (the particle size ranges from 2-8 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, 3-4 parts of mullite whisker, 2-3 parts of GaN, 0.4-0.6 part of sodium potassium tartrate tetrahydrate, 3-4 parts of In<2>O<3>, 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. According to the flake alumina porous ceramic, by means of the nano-aluminium hydroxide, the phenomenon that the alumina particles are prone to agglomeration is improved; by means of the mullite whisker, GaN and In<2>O<3>, the ceramic is better in heat dissipation performance, and the ceramic is more applicable to the package of the high-power LED.
Flake alumina porous ceramic used for packaging high-power LED and preparation method thereof
DONG ZHAOHAI (author)
2015-11-11
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2015
| European Patent Office | 2015
| European Patent Office | 2015
| European Patent Office | 2015
| European Patent Office | 2015