Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Grain-graded zirconium oxide toughened aluminum oxide ceramic substrate and preparation process thereof
The invention relates to a grain-graded zirconium oxide toughened aluminum oxide ceramic substrate and a preparation process thereof. Alumina powder is used as a main phase and zirconia powder is usedas a second phase material; magnesium aluminate spinel powder is used as a sintering aid; taking a binary azeotropic mixture of absolute ethyl alcohol and butanone as a solvent; phosphate esters as dispersants, polyvinyl butyral is used as an adhesive; dibutyl phthalate is used as a plasticizer; the volume ratio of the alumina powder to the zirconia powder is 82.44%-96.7%; the content of the zirconia powder is 3.30%-17.56%; the magnesium aluminate spinel powder accounts for 0.1-4.0% of the total weight of the alumina powder and the zirconia powder; the alumina powder, the zirconia powder andthe magnesium aluminate spinel powder form inorganic powder; the solvent accounts for 20-35% of the total weight of the inorganic powder; a dispersing agent accounts for 0.5-2.0% of the total weight of the inorganic powder, an adhesive accounts for 5-15% of the total weight of the inorganic powder, a plasticizer accounts for 2-6% of the total weight of the inorganic powder, wherein the particle size ratio of alumina powder to zirconia powder is 2.415-4.444, so that ZrO2 can be used as a toughening phase, no leakage current is generated, and the requirements of a ZTA ceramic copper-clad substrate and a heating element on mechanical and electrical properties can be met.
本发明涉及一种晶粒级氧化锆增韧氧化铝陶瓷基板及其制备工艺，氧化铝粉为主相和氧化锆粉为第二相材料，镁铝尖晶石粉为烧结助剂，无水乙醇和丁酮二元共沸混合物作溶剂，磷酸酯作分散剂，聚乙烯醇缩丁醛作粘接剂，邻苯二甲酸二丁酯作增塑剂，氧化铝粉和氧化锆粉中氧化铝粉体积比为82.44%～96.7%，氧化锆粉为3.30%～17.56%，镁铝尖晶石粉占氧化铝粉和氧化锆粉总重量0.1～4.0%，氧化铝粉、氧化锆粉、镁铝尖晶石粉组成无机粉体，溶剂为无机粉体总重20～35%，分散剂为0.5～2.0%，粘接剂为5～15%，增塑剂为2～6%，氧化铝粉与氧化锆粉晶粒粒径比为2.415～4.444，能保证ZrO作为增韧相作用，不产生漏电流，能满足ZTA陶瓷覆铜基板和发热元件对力学与电学性能要求。
Grain-graded zirconium oxide toughened aluminum oxide ceramic substrate and preparation process thereof
The invention relates to a grain-graded zirconium oxide toughened aluminum oxide ceramic substrate and a preparation process thereof. Alumina powder is used as a main phase and zirconia powder is usedas a second phase material; magnesium aluminate spinel powder is used as a sintering aid; taking a binary azeotropic mixture of absolute ethyl alcohol and butanone as a solvent; phosphate esters as dispersants, polyvinyl butyral is used as an adhesive; dibutyl phthalate is used as a plasticizer; the volume ratio of the alumina powder to the zirconia powder is 82.44%-96.7%; the content of the zirconia powder is 3.30%-17.56%; the magnesium aluminate spinel powder accounts for 0.1-4.0% of the total weight of the alumina powder and the zirconia powder; the alumina powder, the zirconia powder andthe magnesium aluminate spinel powder form inorganic powder; the solvent accounts for 20-35% of the total weight of the inorganic powder; a dispersing agent accounts for 0.5-2.0% of the total weight of the inorganic powder, an adhesive accounts for 5-15% of the total weight of the inorganic powder, a plasticizer accounts for 2-6% of the total weight of the inorganic powder, wherein the particle size ratio of alumina powder to zirconia powder is 2.415-4.444, so that ZrO2 can be used as a toughening phase, no leakage current is generated, and the requirements of a ZTA ceramic copper-clad substrate and a heating element on mechanical and electrical properties can be met.
本发明涉及一种晶粒级氧化锆增韧氧化铝陶瓷基板及其制备工艺，氧化铝粉为主相和氧化锆粉为第二相材料，镁铝尖晶石粉为烧结助剂，无水乙醇和丁酮二元共沸混合物作溶剂，磷酸酯作分散剂，聚乙烯醇缩丁醛作粘接剂，邻苯二甲酸二丁酯作增塑剂，氧化铝粉和氧化锆粉中氧化铝粉体积比为82.44%～96.7%，氧化锆粉为3.30%～17.56%，镁铝尖晶石粉占氧化铝粉和氧化锆粉总重量0.1～4.0%，氧化铝粉、氧化锆粉、镁铝尖晶石粉组成无机粉体，溶剂为无机粉体总重20～35%，分散剂为0.5～2.0%，粘接剂为5～15%，增塑剂为2～6%，氧化铝粉与氧化锆粉晶粒粒径比为2.415～4.444，能保证ZrO作为增韧相作用，不产生漏电流，能满足ZTA陶瓷覆铜基板和发热元件对力学与电学性能要求。
Grain-graded zirconium oxide toughened aluminum oxide ceramic substrate and preparation process thereof
晶粒级配的氧化锆增韧氧化铝陶瓷基板及其制备工艺
WU CHONGJUN (Autor:in) / DUAN MINGXIN (Autor:in) / HE YUNPENG (Autor:in)
14.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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