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Preparation method of gel injection molding pressureless sintering silicon carbide ceramic
The invention relates to a preparation method of gel injection molding pressureless sintering silicon carbide ceramic. The preparation method comprises the following steps: preparing a component A: mixing a monomer, a cross-linking agent, deionized water, a dispersing agent, a suspending agent and a part of ceramic powder, stirring, drying after stirring, sieving and powdering to obtain the component A; preparing a component B: mixing a defoaming agent, a catalyst, an initiator and the remaining ceramic powder, stirring, drying after stirring, sieving and powdering to obtain the component B; preparing the silicon carbide ceramic: mixing the component A and the component B, adding deionized water, mixing to form a whole slurry, curing to obtain a green body, drying the green body, carrying out pressureless sintering on the dried green body in a temperature range of 2100-2200 DEG C, and carrying out heat preservation for 2-5 hours to obtain a silicon carbide ceramic product; the monomer comprises acrylamide, and the cross-linking agent comprises methylene bisacrylamide. When the silicon carbide ceramic product is prepared, the controllability of the silicon carbide ceramic during preparation is effectively improved, the silicon carbide ceramic is green and environment-friendly, and the product quality is greatly improved.
本申请涉及一种凝胶注成型无压烧结碳化硅陶瓷的制备方法，包括如下步骤：制备组分A：将单体、交联剂、去离子水、分散剂、悬浮剂，以及一部分陶瓷粉体混合，搅拌，搅拌后干燥，过筛打粉后得到组分A；制备组分B：将消泡剂、催化剂、引发剂与剩余的陶瓷粉体混合，搅拌，搅拌后干燥，过筛打粉得到组分B；碳化硅陶瓷制备：将组分A与组分B混合后，加入去离子水混合形成浆料整体，固化后得到坯体，将坯体干燥，干燥后的坯体在2100‑2200℃的温度范围进行无压烧结，保温2‑5h，得到碳化硅陶瓷产品；单体包括丙烯酰胺，交联剂包括亚甲基双丙烯酰胺。本申请在制备碳化硅陶瓷产品时，有效提升碳化硅陶瓷制备时的可控性，且绿色环保，产品质量大幅提升。
Preparation method of gel injection molding pressureless sintering silicon carbide ceramic
The invention relates to a preparation method of gel injection molding pressureless sintering silicon carbide ceramic. The preparation method comprises the following steps: preparing a component A: mixing a monomer, a cross-linking agent, deionized water, a dispersing agent, a suspending agent and a part of ceramic powder, stirring, drying after stirring, sieving and powdering to obtain the component A; preparing a component B: mixing a defoaming agent, a catalyst, an initiator and the remaining ceramic powder, stirring, drying after stirring, sieving and powdering to obtain the component B; preparing the silicon carbide ceramic: mixing the component A and the component B, adding deionized water, mixing to form a whole slurry, curing to obtain a green body, drying the green body, carrying out pressureless sintering on the dried green body in a temperature range of 2100-2200 DEG C, and carrying out heat preservation for 2-5 hours to obtain a silicon carbide ceramic product; the monomer comprises acrylamide, and the cross-linking agent comprises methylene bisacrylamide. When the silicon carbide ceramic product is prepared, the controllability of the silicon carbide ceramic during preparation is effectively improved, the silicon carbide ceramic is green and environment-friendly, and the product quality is greatly improved.
本申请涉及一种凝胶注成型无压烧结碳化硅陶瓷的制备方法，包括如下步骤：制备组分A：将单体、交联剂、去离子水、分散剂、悬浮剂，以及一部分陶瓷粉体混合，搅拌，搅拌后干燥，过筛打粉后得到组分A；制备组分B：将消泡剂、催化剂、引发剂与剩余的陶瓷粉体混合，搅拌，搅拌后干燥，过筛打粉得到组分B；碳化硅陶瓷制备：将组分A与组分B混合后，加入去离子水混合形成浆料整体，固化后得到坯体，将坯体干燥，干燥后的坯体在2100‑2200℃的温度范围进行无压烧结，保温2‑5h，得到碳化硅陶瓷产品；单体包括丙烯酰胺，交联剂包括亚甲基双丙烯酰胺。本申请在制备碳化硅陶瓷产品时，有效提升碳化硅陶瓷制备时的可控性，且绿色环保，产品质量大幅提升。
Preparation method of gel injection molding pressureless sintering silicon carbide ceramic
一种凝胶注成型无压烧结碳化硅陶瓷的制备方法
FANG RENDE (author) / DENG ZEMING (author) / YAN YONGJIE (author) / TANG QIAN (author)
2024-09-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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