A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of slurry for improving thermal conductivity of silicon nitride ceramic chip
The invention discloses a slurry preparation method for improving thermal conductivity of a silicon nitride ceramic chip, and relates to the technical field of thermal conductive ceramics. The slurry comprises the following raw material components: boron nitride powder, a reducing agent, a solvent, a binder, a plasticizer and a dispersing agent; the reducing agent is at least one of melamine, urea, triethanolamine and acetanilide; based on the defects of a conventional boron nitride powder coating technology, a reducing agent with a nitridation reduction effect and other auxiliaries are added into boron nitride powder, the mixture is emulsified and dispersed uniformly to obtain slurry, and the slurry is uniformly sprayed on the surface of a green body through high pressure to form a uniform coating and reduce generation of impure phases in the sintering process, so that the heat conductivity of the ceramic chip is improved.
本发明公开了一种提高氮化硅瓷片热导的浆料制备方法，涉及热导陶瓷技术领域。浆料的原料组份包括：氮化硼粉体、还原剂、溶剂、粘结剂、塑化剂、分散剂；所述还原剂为三聚氰胺、尿素、三乙醇胺、乙酰苯胺中至少一种；本发明基于常规的氮化硼敷粉技术存在的弊端，将具有氮化还原作用的还原剂及其余助剂添加入氮化硼粉体中，乳化分散均匀，得到浆料，通过高压均匀喷敷在生坯表面，形成均匀涂层，减少烧结过程中杂相的产生，从而提高瓷片的热导率。
Preparation method of slurry for improving thermal conductivity of silicon nitride ceramic chip
The invention discloses a slurry preparation method for improving thermal conductivity of a silicon nitride ceramic chip, and relates to the technical field of thermal conductive ceramics. The slurry comprises the following raw material components: boron nitride powder, a reducing agent, a solvent, a binder, a plasticizer and a dispersing agent; the reducing agent is at least one of melamine, urea, triethanolamine and acetanilide; based on the defects of a conventional boron nitride powder coating technology, a reducing agent with a nitridation reduction effect and other auxiliaries are added into boron nitride powder, the mixture is emulsified and dispersed uniformly to obtain slurry, and the slurry is uniformly sprayed on the surface of a green body through high pressure to form a uniform coating and reduce generation of impure phases in the sintering process, so that the heat conductivity of the ceramic chip is improved.
本发明公开了一种提高氮化硅瓷片热导的浆料制备方法，涉及热导陶瓷技术领域。浆料的原料组份包括：氮化硼粉体、还原剂、溶剂、粘结剂、塑化剂、分散剂；所述还原剂为三聚氰胺、尿素、三乙醇胺、乙酰苯胺中至少一种；本发明基于常规的氮化硼敷粉技术存在的弊端，将具有氮化还原作用的还原剂及其余助剂添加入氮化硼粉体中，乳化分散均匀，得到浆料，通过高压均匀喷敷在生坯表面，形成均匀涂层，减少烧结过程中杂相的产生，从而提高瓷片的热导率。
Preparation method of slurry for improving thermal conductivity of silicon nitride ceramic chip
一种提高氮化硅瓷片热导的浆料制备方法
WANG BIN (author) / SHI LIANG (author) / GE ZHUANG (author) / DING CHUANG (author) / CUI MENGDE (author) / DING YINGYING (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
Silicon nitride ceramic slurry, silicon nitride ceramic substrate and preparation method thereof
| European Patent Office | 2024
| European Patent Office | 2024