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Zirconium boride-based conductive ceramic material and preparation process thereof
The invention provides a zirconium boride-based conductive ceramic material and a preparation process thereof, and relates to the field of ceramic materials. The zirconium boride-based conductive ceramic material is prepared by taking zirconium silicate, boron carbide and phenolic resin as raw materials, reacting at high temperature through a carbon thermal/boron thermal reduction method to obtain zirconium boride/silicon carbide mixed ceramic powder, preparing slurry from the mixed powder obtained through the reaction, drying, crushing, preparing a blank, and sintering through a pressureless sintering method. Phenolic resin is adopted to replace other carbon sources to be mixed with zirconium silicate and boron carbide in a wet mixing mode, the phenolic resin is adopted to enable mixing to be more uniform, and therefore zirconium boride-silicon carbide mixed powder with finer particles can be prepared, the powder activity is higher, and subsequent preparation of ceramic materials is facilitated. According to the prepared zirconium boride-silicon carbide composite ceramic, the mechanical property, the oxidation resistance and the compactness of a zirconium boride-based ceramic material are improved, and the sintering temperature is reduced.
本发明提供一种硼化锆基导电陶瓷材料及其制备工艺，涉及陶瓷材料领域。该硼化锆基导电陶瓷材料采用硅酸锆、碳化硼和酚醛树脂作为原料，通过碳热/硼热还原法在高温下进行反应得到硼化锆/碳化硅混合陶瓷粉末，将反应得到的混合粉末配制浆料，干燥、破碎、制坯，通过无压烧结法烧结而成。通过采用酚醛树脂取代其他碳源与硅酸锆和碳化硼通过湿混的方式进行混合，采用酚醛树脂可以使得混料更均匀，从而可以制备颗粒更细的硼化锆‑碳化硅混合粉末，粉体活性更高，有利于后续制备陶瓷材料。制备的硼化锆‑碳化硅复合陶瓷不仅提高了硼化锆基陶瓷材料的力学性能、抗氧化性能，致密度，而且降低了烧结温度。
Zirconium boride-based conductive ceramic material and preparation process thereof
The invention provides a zirconium boride-based conductive ceramic material and a preparation process thereof, and relates to the field of ceramic materials. The zirconium boride-based conductive ceramic material is prepared by taking zirconium silicate, boron carbide and phenolic resin as raw materials, reacting at high temperature through a carbon thermal/boron thermal reduction method to obtain zirconium boride/silicon carbide mixed ceramic powder, preparing slurry from the mixed powder obtained through the reaction, drying, crushing, preparing a blank, and sintering through a pressureless sintering method. Phenolic resin is adopted to replace other carbon sources to be mixed with zirconium silicate and boron carbide in a wet mixing mode, the phenolic resin is adopted to enable mixing to be more uniform, and therefore zirconium boride-silicon carbide mixed powder with finer particles can be prepared, the powder activity is higher, and subsequent preparation of ceramic materials is facilitated. According to the prepared zirconium boride-silicon carbide composite ceramic, the mechanical property, the oxidation resistance and the compactness of a zirconium boride-based ceramic material are improved, and the sintering temperature is reduced.
本发明提供一种硼化锆基导电陶瓷材料及其制备工艺，涉及陶瓷材料领域。该硼化锆基导电陶瓷材料采用硅酸锆、碳化硼和酚醛树脂作为原料，通过碳热/硼热还原法在高温下进行反应得到硼化锆/碳化硅混合陶瓷粉末，将反应得到的混合粉末配制浆料，干燥、破碎、制坯，通过无压烧结法烧结而成。通过采用酚醛树脂取代其他碳源与硅酸锆和碳化硼通过湿混的方式进行混合，采用酚醛树脂可以使得混料更均匀，从而可以制备颗粒更细的硼化锆‑碳化硅混合粉末，粉体活性更高，有利于后续制备陶瓷材料。制备的硼化锆‑碳化硅复合陶瓷不仅提高了硼化锆基陶瓷材料的力学性能、抗氧化性能，致密度，而且降低了烧结温度。
Zirconium boride-based conductive ceramic material and preparation process thereof
一种硼化锆基导电陶瓷材料及其制备工艺
WU YIHUA (Autor:in) / XU WEI (Autor:in) / YAN YONGJIE (Autor:in) / TANG QIAN (Autor:in) / ZOU JIDONG (Autor:in) / QI ZHIQIANG (Autor:in) / ZHENG XUELIANG (Autor:in) / WANG LIJUN (Autor:in) / ZHANG YIMING (Autor:in)
11.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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