Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-strength aluminum oxide ceramic
The preparation method comprises the following steps: adding ethyl cellulose into an ethanol-diethyl ether solution, uniformly stirring, then adding aluminum isopropoxide, uniformly stirring, and removing diethyl ether to obtain a mixed aluminum dissolving solution; putting the mixed aluminum dissolving solution into a mold, performing evaporation treatment to obtain a solid blank, then performing standing treatment and sintering treatment on the solid blank, and performing ethanol washing to obtain a porous aluminum oxide blank; putting the porous alumina blank into an aluminum isopropoxide solution for ultrasonic dispersion, then carrying out heating treatment, carrying out nitrogen purging and then carrying out cooling so as to obtain coated alumina; carrying out secondary standing treatment on the coated aluminum oxide, and sintering at constant temperature to obtain prefabricated aluminum oxide ceramic; placing the prefabricated aluminum oxide ceramic in a reaction kettle, introducing silicon chloride steam at a constant temperature, and slowly cooling after standing to obtain adsorption-saturated prefabricated aluminum oxide ceramic; and standing and hydrolyzing the prefabricated aluminum oxide ceramic subjected to adsorption saturation, heating, and sintering to obtain the high-strength aluminum oxide ceramic.
本发明包括一种高强度氧化铝陶瓷的制备方法：将乙基纤维素加入至乙醇乙醚液中搅拌均匀，然后将异丙醇铝加入并搅拌均匀除乙醚，得到混合铝溶解液；将混合铝溶解液放入模具中蒸发处理，得到固体坯体，然后将固体坯体静置处理，烧结处理，经乙醇洗涤后得到多孔氧化铝坯体；将多孔氧化铝坯体放入至异丙醇铝溶液中超声分散，然后升温处理，氮气吹扫后降温，得到镀膜氧化铝；将镀膜氧化铝二次静置处理，恒温烧结，得到预制氧化铝陶瓷；将预制氧化铝陶瓷放置在反应釜内，并恒温通入氯化硅蒸汽，静置后缓慢降温，得到吸附饱和的预制氧化铝陶瓷；将吸附饱和的预制氧化铝陶瓷静置水解，然后升温处理，经烧结成瓷得到高强度氧化铝陶瓷。
Preparation method of high-strength aluminum oxide ceramic
The preparation method comprises the following steps: adding ethyl cellulose into an ethanol-diethyl ether solution, uniformly stirring, then adding aluminum isopropoxide, uniformly stirring, and removing diethyl ether to obtain a mixed aluminum dissolving solution; putting the mixed aluminum dissolving solution into a mold, performing evaporation treatment to obtain a solid blank, then performing standing treatment and sintering treatment on the solid blank, and performing ethanol washing to obtain a porous aluminum oxide blank; putting the porous alumina blank into an aluminum isopropoxide solution for ultrasonic dispersion, then carrying out heating treatment, carrying out nitrogen purging and then carrying out cooling so as to obtain coated alumina; carrying out secondary standing treatment on the coated aluminum oxide, and sintering at constant temperature to obtain prefabricated aluminum oxide ceramic; placing the prefabricated aluminum oxide ceramic in a reaction kettle, introducing silicon chloride steam at a constant temperature, and slowly cooling after standing to obtain adsorption-saturated prefabricated aluminum oxide ceramic; and standing and hydrolyzing the prefabricated aluminum oxide ceramic subjected to adsorption saturation, heating, and sintering to obtain the high-strength aluminum oxide ceramic.
本发明包括一种高强度氧化铝陶瓷的制备方法：将乙基纤维素加入至乙醇乙醚液中搅拌均匀，然后将异丙醇铝加入并搅拌均匀除乙醚，得到混合铝溶解液；将混合铝溶解液放入模具中蒸发处理，得到固体坯体，然后将固体坯体静置处理，烧结处理，经乙醇洗涤后得到多孔氧化铝坯体；将多孔氧化铝坯体放入至异丙醇铝溶液中超声分散，然后升温处理，氮气吹扫后降温，得到镀膜氧化铝；将镀膜氧化铝二次静置处理，恒温烧结，得到预制氧化铝陶瓷；将预制氧化铝陶瓷放置在反应釜内，并恒温通入氯化硅蒸汽，静置后缓慢降温，得到吸附饱和的预制氧化铝陶瓷；将吸附饱和的预制氧化铝陶瓷静置水解，然后升温处理，经烧结成瓷得到高强度氧化铝陶瓷。
Preparation method of high-strength aluminum oxide ceramic
一种高强度氧化铝陶瓷的制备方法
LIU MINGJIAN (Autor:in) / WANG ZHENG (Autor:in)
15.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Preparation method of high-strength aluminum oxide ceramic material
| Europäisches Patentamt | 2023
Preparation method of high-strength semitransparent aluminum oxide ceramic
| Europäisches Patentamt | 2020
High-strength aluminum oxide ceramic and preparation method thereof
| Europäisches Patentamt | 2024
High-strength aluminum oxide foamed ceramic and preparation method thereof
| Europäisches Patentamt | 2021
Preparation method of ultrathin high-strength aluminum oxide ceramic substrate
| Europäisches Patentamt | 2024