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CN101723650B 一种氧化物陶瓷/BaxSr1-xSO4陶瓷复合材料及其制备方法 失效 - 权利终止

一种氧化物陶瓷/BaxSr1-xSO4陶瓷复合材料及其制备方法
摘要：
一种氧化物陶瓷/BaxSr1-xSO4陶瓷复合材料及其制备方法，它涉及一种氧化物陶瓷复合材料及其制备方法。本发明解决了现有氧化物陶瓷材料在室温至760℃广域温度下摩擦系数大，760℃高温下磨损率大，及现有制备工艺烧结温度高的问题。本发明的陶瓷复合材料由氧化物陶瓷相和BaxSr1-xSO4相组成。本发明方法是：球磨湿混，烘干，过筛；细粉体装入石墨模具，冷压处理；放电等离子烧结即得氧化物陶瓷/BaxSr1-xSO4复合材料。本发明的陶瓷复合材料室温至760℃广域温度下摩擦系数均小于0.3，760℃高温下磨损率在10-6mm3/N·m数量级，本发明的制备工艺烧结温度低。
摘要（英）：

The invention discloses an oxide ceramic/BaxSrl-xSO4 ceramic composite material and a preparation method thereof, which relate to an oxide ceramic composite material and a preparation method thereof and solve the problem that the conventional oxide ceramic material has large friction coefficient from the room temperature to a wide area temperature of 760 DEG C and has large abrasion rate at the high temperature of 760 DEG C and the conventional preparation process has high sintering temperature. The ceramic composite material of the invention consists of a ceramic composite material phase anda BaxSrl-xSO4 phase. The method of the invention comprises the following steps: ball milling and wet mixing, drying and sieving; filling fine powder into a graphite jig, and cold-pressing treatment; and obtaining the oxide ceramic/BaxSrl-xSO4 composite material through discharge plasma sintering. The friction coefficient of the ceramic composite material of the invention is less than 0.3 from theroom temperature to the wide area temperature of 760 DEG C, the abrasion rate at the high temperature of 760 DEG C is in the order of magnitude of 10 to 6 mm3/N.m, and the preparation process of the invention has low sintering temperature.

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