烧结气氛对ZTM／SiC陶瓷致密化的影响  

THE INFLUENCE OF SINTERING ATMOSPHERE ON DENSIFICATION OF ZTM/SiC COMPOSITE

作　　者：刘维跃 刘雄光 

出　　处：《天津大学学报》1996年第5期721-726,共6页Journal of Tianjin University(Science and Technology)

摘　　要：ＺＴＭ／ＳｉＣ陶瓷基复合材料的致密化取决于烧结温度、烧结压力和烧结气氛．本文主要研究烧结气氛对ＺＴＭ／ＳｉＣ陶瓷致密化的影响．实验结果表明：该陶瓷不能在空气中实现常压烧结，而在气氛保护下实现了常压烧结致密化；中性或弱还原性气氛可降低该复合陶瓷的烧结温度，提高致密化速率，改善陶瓷材料性能．另外。The densification of ZTM/SiC composite depends on the sintering temperature, sintering pressure and sintering atmosphere. The effect of sintering atmosphere on the densification of ZTM/SiC ceramics is studied in this paper. It has been found that ceramics cannot be densified by pressureless sintering at air atmosphere but can be densified under the protection of atmosphere. It is also undoubtful that neutral or weak reductive atmosphere can decrease the sintering temperature, increase the densifying rate and improve the properties of the composite.

关 键 词：致密化 ZTM陶瓷 碳化硅陶瓷 烧结气氛 复合陶瓷 

分 类 号：TQ174.758[化学工程—陶瓷工业]