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Preparation method of silicon carbide ceramic and silicon carbide ceramic material prepared by preparation method
The invention provides a preparation method of silicon carbide ceramic, which comprises the following steps: adding a sintering aid and an additive into silicon carbide powder serving as a raw material, and sintering at high temperature in an inert gas or vacuum atmosphere to obtain a silicon carbide ceramic material, wherein the silicon carbide powder is subjected to a pretreatment process, and the pretreatment process is high-temperature presintering in a vacuum or inert atmosphere. The invention also provides a silicon carbide ceramic material prepared by the preparation method of the silicon carbide ceramic. The invention provides a preparation method of silicon carbide ceramic, which is particularly suitable for large-size block silicon carbide ceramic materials and solves the problem that common powder in the prior art is not suitable for large-thickness ceramic sintering. The silicon carbide ceramic material prepared from the pretreated silicon carbide powder has the thickness of 50-150 mm, the length of 100-400 mm and the width of 100-400 mm, and the operation method is simple and convenient and is suitable for large-scale production.
本发明提供一种碳化硅陶瓷的制备方法，包括：以碳化硅粉体为原料，加入烧结助剂和添加剂，在惰性气体或真空气氛中，高温烧结，得到碳化硅陶瓷材料；其中，所述碳化硅粉体经过预处理过程，所述预处理过程为在真空或惰性气氛下高温预烧。本发明还提供了一种由上所述的碳化硅陶瓷的制备方法制得的碳化硅陶瓷材料。本发明提供了一种碳化硅陶瓷的制备方法，尤其适用于大尺寸块体碳化硅陶瓷材料，解决了现有技术中普通粉体不适合大厚度陶瓷烧结的问题。采用本发明的预处理后的碳化硅粉，制得的碳化硅陶瓷材料的厚度为50‑150mm，长度为100‑400mm，宽度为100‑400mm，操作方法简便，适于大规模生产。
Preparation method of silicon carbide ceramic and silicon carbide ceramic material prepared by preparation method
The invention provides a preparation method of silicon carbide ceramic, which comprises the following steps: adding a sintering aid and an additive into silicon carbide powder serving as a raw material, and sintering at high temperature in an inert gas or vacuum atmosphere to obtain a silicon carbide ceramic material, wherein the silicon carbide powder is subjected to a pretreatment process, and the pretreatment process is high-temperature presintering in a vacuum or inert atmosphere. The invention also provides a silicon carbide ceramic material prepared by the preparation method of the silicon carbide ceramic. The invention provides a preparation method of silicon carbide ceramic, which is particularly suitable for large-size block silicon carbide ceramic materials and solves the problem that common powder in the prior art is not suitable for large-thickness ceramic sintering. The silicon carbide ceramic material prepared from the pretreated silicon carbide powder has the thickness of 50-150 mm, the length of 100-400 mm and the width of 100-400 mm, and the operation method is simple and convenient and is suitable for large-scale production.
本发明提供一种碳化硅陶瓷的制备方法，包括：以碳化硅粉体为原料，加入烧结助剂和添加剂，在惰性气体或真空气氛中，高温烧结，得到碳化硅陶瓷材料；其中，所述碳化硅粉体经过预处理过程，所述预处理过程为在真空或惰性气氛下高温预烧。本发明还提供了一种由上所述的碳化硅陶瓷的制备方法制得的碳化硅陶瓷材料。本发明提供了一种碳化硅陶瓷的制备方法，尤其适用于大尺寸块体碳化硅陶瓷材料，解决了现有技术中普通粉体不适合大厚度陶瓷烧结的问题。采用本发明的预处理后的碳化硅粉，制得的碳化硅陶瓷材料的厚度为50‑150mm，长度为100‑400mm，宽度为100‑400mm，操作方法简便，适于大规模生产。
Preparation method of silicon carbide ceramic and silicon carbide ceramic material prepared by preparation method
一种碳化硅陶瓷的制备方法和由该制备方法制备的碳化硅陶瓷材料
HUANG ZHENGREN (author) / HUANG YIHUA (author) / LIU XUEJIAN (author) / CHEN ZHONGMING (author) / SUN ANLE (author)
2023-04-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2023
| European Patent Office | 2015
| European Patent Office | 2015