溶胶—凝胶法制备莫来石—氧化硅—顽火辉石复合纤维  

Preparation of Mullite-Silica-Enstatite Composites Fibers with Sol-gel Method

作　　者：谭宏斌[1] 张士勇[2] 马小玲[1] 

机构地区：[1]陕西理工学院材料学院,陕西汉中723003 [2]陕西理工学院机械学院,陕西汉中723003

出　　处：《有色金属（冶炼部分）》2012年第11期56-58,共3页Nonferrous Metals（Extractive Metallurgy)

基　　金：陕西省自然科学基金项目(2012JQ6017);陕西理工学院基金项目(SLGQD1101)

摘　　要：用硝酸铝、氧化镁和正硅酸乙酯为原料,乳酸为络合剂,用溶胶—凝胶法制备了莫来石—氧化硅—顽火辉石复合纤维。用FTIR、XRD和SEM对凝胶纤维和陶瓷纤维进行表征。结果表明,凝胶纤维在1 200℃煅烧2h后得到了具有光滑表面和致密微观结构的莫来石—氧化硅—顽火辉石复合纤维。Mullite-silica-enstatite composites fibers were prepared with sol-gel method with aluminum ni-trate, magnesia and tetraethyl orthosilicate as raw materials, and lactic acid as complexant. FTIR spectra, XRD, and SEM analysis were applied to characterize the properties of the gel and ceramic fibers. The re-suits show that the composites fibers with a smooth surface and dense microstructure are obtained through the sintering gel fibers at 1 200 ℃ for 2 h.

关 键 词：莫来石-氧化硅-顽火辉石复合材料 纤维 溶胶 凝胶法 

分 类 号：TB34[一般工业技术—材料科学与工程]