Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of pressureless sintered silicon carbide ceramic sheet
The invention relates to a preparation method of a pressureless sintered silicon carbide ceramic sheet, which comprises the following steps: preparing gel casting slurry: mixing a monomer, a cross-linking agent, a dispersing agent, a pH value regulator and ultrapure water to obtain premixed liquid, and stirring the premixed liquid at a high speed to obtain mixed slurry; preparing a green body: adding a catalyst into the prepared mixed slurry, performing vacuum defoaming, adding an initiator to obtain a prefabricated mixture, injecting the prefabricated mixture into a mold, and performing gel curing to obtain the green body; and drying the green body: putting the demolded green body at a polyvinylidene fluoride film for vacuum filtration, then putting the green body into a high-molecular-weight polyethylene glycol solution for soaking, and finally taking out the green body and putting the green body into a constant-temperature drying box for heating and drying to obtain the silicon carbide thin plate. The method has the effects of improving the production efficiency and being low in production cost.
本申请涉及一种无压烧结碳化硅陶瓷薄板的制备方法，其包括如下步骤：制备凝胶注模成型浆料：将单体、交联剂、分散剂、pH值调节剂与超纯水混合得到预混液，将预混液高速搅拌，得到混合浆料；制备胚体：将催化剂加入至上述制备的混合浆料中，真空除泡后加入引发剂，得到预制混合物，将预制混合物注入模具中进行凝胶固化，得到坯体；坯体干燥：将脱模后的坯体置于聚偏二氟乙烯膜处真空抽滤，随后将坯体放入高分子量的聚乙二醇溶液中进行浸泡，最后将坯体取出放入恒温干燥箱中进行升温干燥，得到碳化硅薄板。本申请具有提升生产效率且生产成本低的效果。
Preparation method of pressureless sintered silicon carbide ceramic sheet
The invention relates to a preparation method of a pressureless sintered silicon carbide ceramic sheet, which comprises the following steps: preparing gel casting slurry: mixing a monomer, a cross-linking agent, a dispersing agent, a pH value regulator and ultrapure water to obtain premixed liquid, and stirring the premixed liquid at a high speed to obtain mixed slurry; preparing a green body: adding a catalyst into the prepared mixed slurry, performing vacuum defoaming, adding an initiator to obtain a prefabricated mixture, injecting the prefabricated mixture into a mold, and performing gel curing to obtain the green body; and drying the green body: putting the demolded green body at a polyvinylidene fluoride film for vacuum filtration, then putting the green body into a high-molecular-weight polyethylene glycol solution for soaking, and finally taking out the green body and putting the green body into a constant-temperature drying box for heating and drying to obtain the silicon carbide thin plate. The method has the effects of improving the production efficiency and being low in production cost.
本申请涉及一种无压烧结碳化硅陶瓷薄板的制备方法，其包括如下步骤：制备凝胶注模成型浆料：将单体、交联剂、分散剂、pH值调节剂与超纯水混合得到预混液，将预混液高速搅拌，得到混合浆料；制备胚体：将催化剂加入至上述制备的混合浆料中，真空除泡后加入引发剂，得到预制混合物，将预制混合物注入模具中进行凝胶固化，得到坯体；坯体干燥：将脱模后的坯体置于聚偏二氟乙烯膜处真空抽滤，随后将坯体放入高分子量的聚乙二醇溶液中进行浸泡，最后将坯体取出放入恒温干燥箱中进行升温干燥，得到碳化硅薄板。本申请具有提升生产效率且生产成本低的效果。
Preparation method of pressureless sintered silicon carbide ceramic sheet
一种无压烧结碳化硅陶瓷薄板的制备方法
FANG RENDE (Autor:in) / WANG ZHEN (Autor:in) / YAN YONGJIE (Autor:in) / TANG QIAN (Autor:in) / ZOU JIDONG (Autor:in) / DING JIE (Autor:in)
14.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Pressureless sintered silicon carbide bulletproof ceramic and preparation method thereof
| Europäisches Patentamt | 2021
Low-temperature pressureless-sintered silicon carbide ceramic and preparation method thereof
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2015
Preparation process of large-size pressureless sintered silicon carbide ceramic material
| Europäisches Patentamt | 2021
Pressureless sintered boron carbide bulletproof ceramic and preparation method thereof
| Europäisches Patentamt | 2021