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The invention discloses a silicon nitride-based ceramic body which is simple in process, low in cost and more beneficial to actual production and application, and a method for in-situ self-generation of a zirconium nitride coating on the surface of the silicon nitride-based ceramic. According to the technical scheme adopted by the invention, the method for in-situ self-generation of the zirconium nitride coating on the surface of the silicon nitride-based ceramic comprises the following steps: (1) proportioning raw materials including 60-85 wt% of silicon nitride, 5-30 wt% of zirconium dioxide and 5-20 wt% of a sintering aid; (2) uniformly mixing the raw materials prepared in the step (1); (3) granulating the mixture obtained in the step (2); (4) carrying out compression molding on the granulated material obtained in the step (3); and (5) sintering the formed material obtained in the step (4) in a graphite porcelain boat, wherein the sintering process is carried out in an inert atmosphere environment.
本发明公开了一种工艺简单、成本低，更加有利于实际生产应用的氮化硅基陶瓷体、及氮化硅基陶瓷表面原位自生成氮化锆涂层的方法。本发明所采用的技术方案是：一种氮化硅基陶瓷表面原位自生成氮化锆涂层的方法，其包括以下步骤：（1）配比原料，包括：氮化硅60‑85wt%、二氧化锆5‑30wt%、以及助烧剂5‑20wt%；（2）将步骤（1）中配好的原料进行混合均匀；（3）将步骤（2）中得到的混合物进行造粒；（4）将步骤（3）中得到的造粒材料进行压制成型；（5）将步骤（4）中得到的成型材料放在石墨瓷舟中进行烧结，所述烧结过程在惰性气氛环境下进行。
The invention discloses a silicon nitride-based ceramic body which is simple in process, low in cost and more beneficial to actual production and application, and a method for in-situ self-generation of a zirconium nitride coating on the surface of the silicon nitride-based ceramic. According to the technical scheme adopted by the invention, the method for in-situ self-generation of the zirconium nitride coating on the surface of the silicon nitride-based ceramic comprises the following steps: (1) proportioning raw materials including 60-85 wt% of silicon nitride, 5-30 wt% of zirconium dioxide and 5-20 wt% of a sintering aid; (2) uniformly mixing the raw materials prepared in the step (1); (3) granulating the mixture obtained in the step (2); (4) carrying out compression molding on the granulated material obtained in the step (3); and (5) sintering the formed material obtained in the step (4) in a graphite porcelain boat, wherein the sintering process is carried out in an inert atmosphere environment.
本发明公开了一种工艺简单、成本低，更加有利于实际生产应用的氮化硅基陶瓷体、及氮化硅基陶瓷表面原位自生成氮化锆涂层的方法。本发明所采用的技术方案是：一种氮化硅基陶瓷表面原位自生成氮化锆涂层的方法，其包括以下步骤：（1）配比原料，包括：氮化硅60‑85wt%、二氧化锆5‑30wt%、以及助烧剂5‑20wt%；（2）将步骤（1）中配好的原料进行混合均匀；（3）将步骤（2）中得到的混合物进行造粒；（4）将步骤（3）中得到的造粒材料进行压制成型；（5）将步骤（4）中得到的成型材料放在石墨瓷舟中进行烧结，所述烧结过程在惰性气氛环境下进行。
Silicon nitride-based ceramic body and method for in-situ self-generation of zirconium nitride coating on surface of silicon nitride-based ceramic
氮化硅基陶瓷体、氮化硅基陶瓷表面原位自生成氮化锆涂层的方法
WANG QU (author)
2022-01-04
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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