CAJ | 학술논문

在原试验基础上，采用更细氧化铝粉末以期进一步提高原位转化碳纤维增韧氧化铝陶瓷复合材料的韧性。探究了2000目氧化铝粉末的最佳烧结温度，研究对比了1000目与2000目氧化铝粉作为基体材料的复合材料的致密度、硬度、断裂韧性和滑动磨损性能。研究结果表明：采用2000目氧化铝粉末烧结的较佳最高烧结温度为1550℃，较1000目氧化铝粉末的烧结温度降低，且复合材料的晶粒较1000目氧化铝复合材料减小。采用2000目氧化铝粉末烧结的复合材料致密度、硬度、断裂韧性和滑动磨损性能均有所提高。
재원시험기출상，채용경세양화려분말이기진일보제고원위전화탄섬유증인양화려도자복합재료적인성。탐구료2000목양화려분말적최가소결온도，연구대비료1000목여2000목양화려분작위기체재료적복합재료적치밀도、경도、단렬인성화활동마손성능。연구결과표명：채용2000목양화려분말소결적교가최고소결온도위1550℃，교1000목양화려분말적소결온도강저，차복합재료적정립교1000목양화려복합재료감소。채용2000목양화려분말소결적복합재료치밀도、경도、단렬인성화활동마손성능균유소제고。
Based on previous researches, in this experiment smaller alumina power is adopted in order to promote the toughness of alumina ceramic reinforced by in situ transformed carbon ifber. Because the alumina size decreases, so in the experiment, the highest sinter tempera-ture for 2000 mesh alumina is studied, then a comparison between 1000 mesh alumina matrix composites and 2000 mesh alumina matrix composites is conducted in the aspect of density, hardness and wear behaviors. The results dem-onstrate that the suitable highest sintering temperature is 1550℃for 2000 mesh alumina, and the sintering tempera-ture is lower and the grain size is smaller than 1000 mesh alumina composites. By comparing the density, hardness, fracture toughness and slid wear behavior, it finds that these properties of 2000 mesh alumina matrix composites are all better than the 1000mesh alumina matrix compos-ites.