Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-temperature hot-pressing sintering method of boron nitride multi-phase ceramic side sealing plate
The invention discloses a low-temperature hot-pressing sintering method of a boron nitride multi-phase ceramic side sealing plate and relates to a boron nitride multi-phase ceramic side sealing plate sintering method. The invention aims at solving the technical problem that the mechanical performance is decreased for reasons that the sintering temperature during boron nitride multi-phase ceramic preparation is high and low-melting-point sintering assistants are excessively remained. The method comprises the following steps: 1) preparing composite sintering assistant powder; 2) preparing boron nitride composite powder; 3) containing the boron nitride composite powder in a hot-pressing mold and performing sintering at three stages to obtain the boron nitride multi-phase ceramic side sealing plate. The compactness of the boron nitride multi-phase ceramic side sealing plate prepared through 1300 to 1400 DEG C hot-pressing sintering by adopting the method disclosed by the invention can reach more than 96 percent, the crystal grains of the boron nitride multi-phase ceramic material are fine, the comprehensive mechanical performance is excellent and the anti-bending strength can reach 300MPa. The invention belongs to the field of preparation of multi-phase ceramic side sealing plates.
Low-temperature hot-pressing sintering method of boron nitride multi-phase ceramic side sealing plate
The invention discloses a low-temperature hot-pressing sintering method of a boron nitride multi-phase ceramic side sealing plate and relates to a boron nitride multi-phase ceramic side sealing plate sintering method. The invention aims at solving the technical problem that the mechanical performance is decreased for reasons that the sintering temperature during boron nitride multi-phase ceramic preparation is high and low-melting-point sintering assistants are excessively remained. The method comprises the following steps: 1) preparing composite sintering assistant powder; 2) preparing boron nitride composite powder; 3) containing the boron nitride composite powder in a hot-pressing mold and performing sintering at three stages to obtain the boron nitride multi-phase ceramic side sealing plate. The compactness of the boron nitride multi-phase ceramic side sealing plate prepared through 1300 to 1400 DEG C hot-pressing sintering by adopting the method disclosed by the invention can reach more than 96 percent, the crystal grains of the boron nitride multi-phase ceramic material are fine, the comprehensive mechanical performance is excellent and the anti-bending strength can reach 300MPa. The invention belongs to the field of preparation of multi-phase ceramic side sealing plates.
Low-temperature hot-pressing sintering method of boron nitride multi-phase ceramic side sealing plate
CHEN LEI (Autor:in) / WANG YUJIN (Autor:in) / YAO MIANYI (Autor:in) / JIA DECHANG (Autor:in) / ZHOU YU (Autor:in)
30.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
Boron nitride multi-phase ceramic side sealing plate and preparation method thereof
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