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Grain-grade zirconia toughened alumina ceramic substrate and method for preparing the same
A grain-grade zirconia toughened alumina ceramic substrate and a method for preparing the same. The ceramic substrate is prepared from alumina power (main phase) and zirconia powder (secondary phase) in a binary azeotrope of anhydrous ethanol and butanone in the presence of magnesia-alumina spinel powder (as sintering aid), phosphate ester (as dispersant), polyvinyl butyral (as binder) and dibutyl phthalate (as plasticizer). In a mixture of the alumina power and the zirconia powder, a volume percentage of the alumina power is 82.44-96.7%, and a volume percentage of the zirconia powder is 3.30-17.56%. The magnesia-alumina spinel powder is 0.1-4.0% by weight of the mixture of the alumina power and the zirconia powder. A particle size ratio of the alumina powder to the zirconia powder is 2.415-4.444.
Grain-grade zirconia toughened alumina ceramic substrate and method for preparing the same
A grain-grade zirconia toughened alumina ceramic substrate and a method for preparing the same. The ceramic substrate is prepared from alumina power (main phase) and zirconia powder (secondary phase) in a binary azeotrope of anhydrous ethanol and butanone in the presence of magnesia-alumina spinel powder (as sintering aid), phosphate ester (as dispersant), polyvinyl butyral (as binder) and dibutyl phthalate (as plasticizer). In a mixture of the alumina power and the zirconia powder, a volume percentage of the alumina power is 82.44-96.7%, and a volume percentage of the zirconia powder is 3.30-17.56%. The magnesia-alumina spinel powder is 0.1-4.0% by weight of the mixture of the alumina power and the zirconia powder. A particle size ratio of the alumina powder to the zirconia powder is 2.415-4.444.
Grain-grade zirconia toughened alumina ceramic substrate and method for preparing the same
WU CHONGJUN (Autor:in) / DUAN MINGXIN (Autor:in) / HE YUNPENG (Autor:in)
09.01.2024
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
GRAIN-GRADE ZIRCONIA TOUGHENED ALUMINA CERAMIC SUBSTRATE AND METHOD FOR PREPARING THE SAME
| Europäisches Patentamt | 2022
GRAIN-GRADE ZIRCONIA TOUGHENED ALUMINA CERAMIC SUBSTRATE AND PROCESS FOR PREPARATION THEREOF
| Europäisches Patentamt | 2021