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Fine-grain high-strength magnesium aluminate spinel transparent ceramic and preparation method thereof
The invention relates to a fine-grain high-strength magnesium aluminate spinel transparent ceramic and a preparation method thereof. The preparation method of the fine-grain high-strength magnesium aluminate spinel transparent ceramic comprises the following steps: (1) taking magnesium aluminate spinel powder as a raw material, and mixing the magnesium aluminate spinel powder with a solvent and a dispersing agent to prepare ceramic slurry which has a gelation characteristic; the dispersing agent is polyacrylic acid PAA with the molecular weight of 1000 to 10000; (2) carrying out low-pressure auxiliary gel casting treatment on the obtained ceramic slurry to obtain a wet blank; (3) drying, degumming and pre-sintering the obtained wet blank to obtain a pre-sintered body; and (4) carrying out hot isostatic pressing sintering on the obtained pre-sintered body to obtain the fine-grain high-strength magnesium aluminate spinel transparent ceramic.
本发明涉及一种细晶高强度镁铝尖晶石透明陶瓷及其制备方法。所述细晶高强度镁铝尖晶石透明陶瓷的制备方法包括：（1）以镁铝尖晶石粉体为原料，再与溶剂和分散剂混合，配制得到陶瓷浆料，陶瓷浆料具有凝胶化特性；所述分散剂为分子量1000～10000的聚丙烯酸PAA；（2）采用低压辅助注凝成型处理所得陶瓷浆料，得到湿坯；（3）将所得湿坯进行干燥、排胶、预烧结，得到预烧体；（4）将所得预烧体进行热等静压烧结，得到所述细晶高强度镁铝尖晶石透明陶瓷。
Fine-grain high-strength magnesium aluminate spinel transparent ceramic and preparation method thereof
The invention relates to a fine-grain high-strength magnesium aluminate spinel transparent ceramic and a preparation method thereof. The preparation method of the fine-grain high-strength magnesium aluminate spinel transparent ceramic comprises the following steps: (1) taking magnesium aluminate spinel powder as a raw material, and mixing the magnesium aluminate spinel powder with a solvent and a dispersing agent to prepare ceramic slurry which has a gelation characteristic; the dispersing agent is polyacrylic acid PAA with the molecular weight of 1000 to 10000; (2) carrying out low-pressure auxiliary gel casting treatment on the obtained ceramic slurry to obtain a wet blank; (3) drying, degumming and pre-sintering the obtained wet blank to obtain a pre-sintered body; and (4) carrying out hot isostatic pressing sintering on the obtained pre-sintered body to obtain the fine-grain high-strength magnesium aluminate spinel transparent ceramic.
本发明涉及一种细晶高强度镁铝尖晶石透明陶瓷及其制备方法。所述细晶高强度镁铝尖晶石透明陶瓷的制备方法包括：（1）以镁铝尖晶石粉体为原料，再与溶剂和分散剂混合，配制得到陶瓷浆料，陶瓷浆料具有凝胶化特性；所述分散剂为分子量1000～10000的聚丙烯酸PAA；（2）采用低压辅助注凝成型处理所得陶瓷浆料，得到湿坯；（3）将所得湿坯进行干燥、排胶、预烧结，得到预烧体；（4）将所得预烧体进行热等静压烧结，得到所述细晶高强度镁铝尖晶石透明陶瓷。
Fine-grain high-strength magnesium aluminate spinel transparent ceramic and preparation method thereof
一种细晶高强度镁铝尖晶石透明陶瓷及其制备方法
ZHANG JIAN (Autor:in) / LIU MENGWEI (Autor:in) / HAN DAN (Autor:in) / WU BENHUA (Autor:in) / ZHAO JIN (Autor:in) / SHIMAI SHUNZO (Autor:in) / WANG SHIWEI (Autor:in) / YUAN HOUCHENG (Autor:in) / GAO GUOZHONG (Autor:in)
03.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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