Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ceramic connecting piece as well as preparation method and application thereof
The invention belongs to the technical field of ceramic connection, and discloses a ceramic connecting piece and a preparation method and application thereof. The method comprises the following steps:dissolving Re2O3 in an inorganic acid to obtain a solution containing Re ions; Al2O3 is added into a solution containing Re ions to be subjected to ball milling and then is subjected to ball millingand mixing with SiC or Si3N4 nano ceramic powder, so that a connecting material is prepared; and the connecting material isplaced between two polished SiC or Si3N4 ceramics to form a sandwich structure; the sandwich structure is heated to 1000-1200 DEG C in a vacuum or protective atmosphere, the temperature is kept, the structure is heated to 1300-1600 DEG C to be calcined, and pressurizing is performed by 0.1-10 MPa to prepare the ceramic connecting piece. By means of the method, the SiC or Si3N4 ceramic can be connected under the low-temperature and low-pressure conditions, the joint is compact and free of defects and has good high-temperature resistance and corrosion resistance, and the ceramic connecting piece can be widely applied to the fields of space flight and aviation, war industry and nuclear energy.
本发明属于陶瓷连接技术领域，公开了一种陶瓷连接件及其制备方法和应用。该方法是将Re2O3溶解于无机酸中得到含Re离子的溶液；然后将Al2O3加入含Re离子的溶液中球磨，再与SiC或Si3N4纳米陶瓷粉体球磨混合后，制得连接材料；再将连接材料置于两块抛光后的SiC或Si3N4陶瓷间形成三明治结构，在真空或保护气氛下，升温至1000～1200℃保温，然后升温至1300～1600℃煅烧，加压0.1～10MPa，制成陶瓷连接件。本发明的方法可实现SiC或Si3N4陶瓷在的低温和低压条件下连接，使得该接头致密无缺陷，具有较好的抗高温和抗腐蚀性能，该陶瓷连接件可广泛应用于航天航空、军工和核能领域中。
Ceramic connecting piece as well as preparation method and application thereof
The invention belongs to the technical field of ceramic connection, and discloses a ceramic connecting piece and a preparation method and application thereof. The method comprises the following steps:dissolving Re2O3 in an inorganic acid to obtain a solution containing Re ions; Al2O3 is added into a solution containing Re ions to be subjected to ball milling and then is subjected to ball millingand mixing with SiC or Si3N4 nano ceramic powder, so that a connecting material is prepared; and the connecting material isplaced between two polished SiC or Si3N4 ceramics to form a sandwich structure; the sandwich structure is heated to 1000-1200 DEG C in a vacuum or protective atmosphere, the temperature is kept, the structure is heated to 1300-1600 DEG C to be calcined, and pressurizing is performed by 0.1-10 MPa to prepare the ceramic connecting piece. By means of the method, the SiC or Si3N4 ceramic can be connected under the low-temperature and low-pressure conditions, the joint is compact and free of defects and has good high-temperature resistance and corrosion resistance, and the ceramic connecting piece can be widely applied to the fields of space flight and aviation, war industry and nuclear energy.
本发明属于陶瓷连接技术领域，公开了一种陶瓷连接件及其制备方法和应用。该方法是将Re2O3溶解于无机酸中得到含Re离子的溶液；然后将Al2O3加入含Re离子的溶液中球磨，再与SiC或Si3N4纳米陶瓷粉体球磨混合后，制得连接材料；再将连接材料置于两块抛光后的SiC或Si3N4陶瓷间形成三明治结构，在真空或保护气氛下，升温至1000～1200℃保温，然后升温至1300～1600℃煅烧，加压0.1～10MPa，制成陶瓷连接件。本发明的方法可实现SiC或Si3N4陶瓷在的低温和低压条件下连接，使得该接头致密无缺陷，具有较好的抗高温和抗腐蚀性能，该陶瓷连接件可广泛应用于航天航空、军工和核能领域中。
Ceramic connecting piece as well as preparation method and application thereof
一种陶瓷连接件及其制备方法和应用
HE SHENGJIN (Autor:in) / WU LIXIANG (Autor:in) / GUO WEIMING (Autor:in) / ZHAN CHUANGTIAN (Autor:in) / ZHU LINLIN (Autor:in) / LIN HUATAI (Autor:in)
11.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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