气氛烧结对溶胶-凝胶法制备Al_2O_3-3Y-TZP纤维微观结构的影响  

Effect of Sintering Atmosphere on the Microstructure Evolution of Sol-gel-Derived Al_2O_3-3Y-TZP Fibers

作　　者：李建军[1] 宋建争[1] 焦秀玲[2] 陈代荣[2] 

机构地区：[1]燕山大学环境与化学工程学院,秦皇岛066004 [2]山东大学化学与化工学院,济南250100

出　　处：《材料导报》2011年第16期60-63,74,共5页Materials Reports

基　　金：燕山大学博士基金(B358)

摘　　要：以ZrOCl2·8H2O和蔗糖为主要原料,通过溶胶-凝胶电解法制备了Al2O3-3Y-TZP凝胶纤维,采用SEM、XRD、BET吸附等考察了N2气氛预烧结后Al2O3-3Y-TZP陶瓷纤维的微观结构变化。结果表明,经过N2气氛预烧结处理后,纤维致密度明显提高,在1400℃高温烧结30min后,组成纤维的晶粒粒径约为200nm。Al2O3 3Y-TZP zireonia fiber was obtained by electrolysis-sol-gel method using zirconium oxychloride octahydrate and sucrose as raw materials. BET, XRD and SEM techniques were used to investigate the effects of nitrogen gas pre-thermal treatment on the changes in the microstructure of Al2O3 3Y-TZP fibers. The results show that fiber density markedly improved. Sintered at 1400℃ for 30min in the air, the Al2O3 3Y-TZP fibers composed of the 200nm zirconia grains can be obtained.

关 键 词：TZP 纤维 微观结构 溶胶-凝胶法 

分 类 号：TQ343.5[化学工程—化纤工业]