Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of AlON transparent ceramic powder
The invention discloses a preparation method of AlON transparent ceramic powder, which comprises the following steps: S1, mixing aluminum halide, dichloromethane, isopropyl ether, absolute ethyl alcohol and resin to obtain an Al2O3/C precursor mixed solution; S2, carrying out ball milling, carrying out a reaction for 10-24 h at a temperature of 70-110 DEG C, and then conducting drying to obtain amixture of Al2O3 xerogel and resin; S3, conducting calcining for 0.5 to 2 hours at the temperature of 250 to 350 DEG C; S4, carrying out a cracking reaction in an inert atmosphere to obtain Al2O3/C mixed powder; and S5, carrying out a carbothermal reduction nitridation reaction in a nitrogen atmosphere to obtain the AlON transparent ceramic powder. The method has the characteristics of sufficientand uniform reaction and low cost, and is suitable for large-scale production, and the prepared AlON powder has the advantages of high purity, small particle size, low agglomeration and uniform component distribution, and is beneficial to sintering to obtain the AlON transparent ceramic with high optical transmittance.
本发明公开了一种AlON透明陶瓷粉体的制备方法，包括以下步骤：S1.取卤化铝、二氯甲烷、异丙醚、无水乙醇和树脂混合，得到Al2O3/C的前驱体混合溶液；S2.球磨，并于70～110℃反应10～24h，然后干燥，得到Al2O3干凝胶与树脂的混合物；S3.在250～350℃下煅烧0.5～2h；S4.在惰性气氛中进行裂解反应，得到Al2O3/C混合粉体；S5.在氮气气氛中进行碳热还原氮化反应，得到AlON透明陶瓷粉体。本发明具有反应充分均匀、成本低的特点，适用于大规模生产，制备得到的AlON粉体纯度高、粒径小、低团聚、成分分布均匀，有利于烧结得到高光学透过率的AlON透明陶瓷。
Preparation method of AlON transparent ceramic powder
The invention discloses a preparation method of AlON transparent ceramic powder, which comprises the following steps: S1, mixing aluminum halide, dichloromethane, isopropyl ether, absolute ethyl alcohol and resin to obtain an Al2O3/C precursor mixed solution; S2, carrying out ball milling, carrying out a reaction for 10-24 h at a temperature of 70-110 DEG C, and then conducting drying to obtain amixture of Al2O3 xerogel and resin; S3, conducting calcining for 0.5 to 2 hours at the temperature of 250 to 350 DEG C; S4, carrying out a cracking reaction in an inert atmosphere to obtain Al2O3/C mixed powder; and S5, carrying out a carbothermal reduction nitridation reaction in a nitrogen atmosphere to obtain the AlON transparent ceramic powder. The method has the characteristics of sufficientand uniform reaction and low cost, and is suitable for large-scale production, and the prepared AlON powder has the advantages of high purity, small particle size, low agglomeration and uniform component distribution, and is beneficial to sintering to obtain the AlON transparent ceramic with high optical transmittance.
本发明公开了一种AlON透明陶瓷粉体的制备方法，包括以下步骤：S1.取卤化铝、二氯甲烷、异丙醚、无水乙醇和树脂混合，得到Al2O3/C的前驱体混合溶液；S2.球磨，并于70～110℃反应10～24h，然后干燥，得到Al2O3干凝胶与树脂的混合物；S3.在250～350℃下煅烧0.5～2h；S4.在惰性气氛中进行裂解反应，得到Al2O3/C混合粉体；S5.在氮气气氛中进行碳热还原氮化反应，得到AlON透明陶瓷粉体。本发明具有反应充分均匀、成本低的特点，适用于大规模生产，制备得到的AlON粉体纯度高、粒径小、低团聚、成分分布均匀，有利于烧结得到高光学透过率的AlON透明陶瓷。
Preparation method of AlON transparent ceramic powder
一种AlON透明陶瓷粉体的制备方法
DAI YU (Autor:in) / WU JIAN (Autor:in) / YI JUN (Autor:in) / WANG ZHUOJIAN (Autor:in)
19.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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