Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Atmosphere-adjusted AlON transparent ceramic sintering preparation method
The invention relates to a sintering preparation method of atmosphere-adjusted AlON transparent ceramic, which comprises the following steps: taking AlON powder with the purity of higher than 99.5% and D50 of less than or equal to 0.5 mu m as an atmosphere-adjusted raw material, and performing wet mixing, spray granulation, molding combined with cold isostatic pressing, degreasing and the like on powder raw materials such as a Y2O3 sintering aid with the total content of 0.1-0.5 wt%. Superfine AlON powder is adopted to adjust the sintering atmosphere of the transparent ceramic, and the AlON transparent ceramic is prepared through a process of combining pressureless presintering with hot isostatic pressing sintering. And finally, the large-size AlON transparent ceramic with the in-plane size of 180mm * 255mm is prepared. According to the method, the superfine AlON powder is used as a raw material for adjusting the sintering atmosphere of the transparent ceramic, so that the decomposition of components of the AlON transparent ceramic and the pollution of graphite atmosphere are inhibited, and the preparation of the high-transmittance AlON transparent ceramic is realized.
本发明涉及一种气氛调节AlON透明陶瓷的烧结制备方法，包括以下步骤：将纯度高于99.5％，D50≤0.5μm的AlON粉体作为气氛调节的原料，总含量为0.1～0.5wt％的Y2O3烧结助剂等粉体原料经湿法混料、喷雾造粒、模压结合冷等静压成型、脱脂等步骤。采用超细AlON粉体调节透明陶瓷烧结的气氛，通过无压预烧结结合热等静压压烧结的工艺进行制备AlON透明陶瓷。最终制备出了面内尺寸为180mm×255mm的大尺寸AlON透明陶瓷。本发明以超细AlON粉体作为透明陶瓷烧结气氛调节的原料，抑制了AlON透明陶瓷组分的分解和石墨气氛的污染，实现高透光度AlON透明陶瓷的制备。
Atmosphere-adjusted AlON transparent ceramic sintering preparation method
The invention relates to a sintering preparation method of atmosphere-adjusted AlON transparent ceramic, which comprises the following steps: taking AlON powder with the purity of higher than 99.5% and D50 of less than or equal to 0.5 mu m as an atmosphere-adjusted raw material, and performing wet mixing, spray granulation, molding combined with cold isostatic pressing, degreasing and the like on powder raw materials such as a Y2O3 sintering aid with the total content of 0.1-0.5 wt%. Superfine AlON powder is adopted to adjust the sintering atmosphere of the transparent ceramic, and the AlON transparent ceramic is prepared through a process of combining pressureless presintering with hot isostatic pressing sintering. And finally, the large-size AlON transparent ceramic with the in-plane size of 180mm * 255mm is prepared. According to the method, the superfine AlON powder is used as a raw material for adjusting the sintering atmosphere of the transparent ceramic, so that the decomposition of components of the AlON transparent ceramic and the pollution of graphite atmosphere are inhibited, and the preparation of the high-transmittance AlON transparent ceramic is realized.
本发明涉及一种气氛调节AlON透明陶瓷的烧结制备方法，包括以下步骤：将纯度高于99.5％，D50≤0.5μm的AlON粉体作为气氛调节的原料，总含量为0.1～0.5wt％的Y2O3烧结助剂等粉体原料经湿法混料、喷雾造粒、模压结合冷等静压成型、脱脂等步骤。采用超细AlON粉体调节透明陶瓷烧结的气氛，通过无压预烧结结合热等静压压烧结的工艺进行制备AlON透明陶瓷。最终制备出了面内尺寸为180mm×255mm的大尺寸AlON透明陶瓷。本发明以超细AlON粉体作为透明陶瓷烧结气氛调节的原料，抑制了AlON透明陶瓷组分的分解和石墨气氛的污染，实现高透光度AlON透明陶瓷的制备。
Atmosphere-adjusted AlON transparent ceramic sintering preparation method
一种气氛调节AlON透明陶瓷的烧结制备方法
MOU XIAOMING (Autor:in) / LIU FAFU (Autor:in) / ZHANG CONG (Autor:in) / ZHANG WU (Autor:in) / KWAK JAE-JAE (Autor:in) / GUO JIANBIN (Autor:in) / LIN GUANGQING (Autor:in) / HAN HAN (Autor:in) / YIN FEI (Autor:in) / MIAO YUYANG (Autor:in)
12.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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