溶胶-凝胶法制备氧化铝纤维的研究  

Study of Alumina Fibers Prepared by Sol-gel Procession

作　　者：任素娥[1] 梁小平[1] 赵素珍[1] 王荣涛[1] 

机构地区：[1]天津工业大学材料科学与工程学院,天津300160

出　　处：《硅酸盐通报》2010年第4期914-917,共4页Bulletin of the Chinese Ceramic Society

基　　金：天津市应用基础及前沿技术研究计划重点项目(08JCZDJC24000)

摘　　要：采用溶胶-凝胶法,以AlCl3·6H2O、金属Al粉、ZrOCl2·6H2O、和H2O为原料制备氧化铝纤维.主要研究了拉丝助剂（HCl和HAc）、烧结温度及ZrO2添加量对氧化铝纤维性能的影响.研究结果表明同种拉丝助剂添加量越大,可拉丝时间越长.在1000～1400 ℃烧结范围内,烧结温度对纤维的表面结构影响不大;1400 ℃下可以得到晶粒发育完善,晶型完整以及拉伸强度最佳的氧化铝纤维.ZrO2可对氧化铝纤维起到增强作用,但随着ZrO2量的增加,拉伸强度的增加作用逐渐减小.Alumina fiber was prepared by sol-gel procession using Al, AlCl3·6H2O, and H2O as raw materials. The effects of fiber-drawing agent （HC1 and HAe） , sintering ZrO2 addition on the properties of the fiber were investigated. The result shows that the ZrOCl2·6H2O, temperature and largger the same fiber-drawing agent is, the longer the fiber-drawing time will be. Sintering temperature at 1000-1400℃ has little effect on the surface structure of alumina fiber. Alumina fiber with perfect ted crystal grain, integrated crystal and the best tensile strength can be processed at 1400℃. ZrO2 can strengthen the alumina fibers, but the increasing role in the tensile strength decreases with the increasing amount of ZrO2.

关 键 词：溶胶-凝胶法 氧化铝纤维 拉丝助剂 烧结温度 ZRO2 

分 类 号：O643[理学—物理化学]