【作者】 刘伟华； 翟学良； 宋双居；

【Author】 LIU Wei-hua~1 ZHAI Xue-liang~2 SONG Shuang-ju~1 (1.Science Academy,Agriculture University of Hebei,Baoding 071001,China; 2.Laboratory Center,Hebei Normal University,Shijiazhuang 050016,China)

【机构】 河北农业大学理学院； 河北师范大学实验中心；

【摘要】 首次采用乙酰丙酮作为钛醇盐的稳定剂,醋酸钡和钛酸丁酯为原料,无水乙醇-冰醋酸作为溶剂, 用 sol-gel 法制备了长达50cm 的 BaTiO₃凝胶纤维．用 FT-IR、XRD、TGA-DTA、SEM 等手段对凝胶纤维或陶瓷纤维进行一系列表征,最终得到单一钙钛矿相钛酸钡陶瓷纤维,纤维直径4～10μm,具有椭圆形截面．更多还原

【Abstract】 Barium titanate gel fibers were firstly prepared by the sol-gel method in which acetylacetonewas used as the stabilizer of titanate,barium acetate and butyl titanate were used as starting materials,ethanol absolute-free acetic acid were used as solvent.The green fibers and those sintered at different temperatures were characterized by infrared spectroscopy(IR),X-ray diffraction(XRD),thermogravimetry analysis(TGA) and scanning electron microscope(SEM) techniques.Perovskite barium titanate ceramic fibers were of the order of 4 to10μm in diameter and elliptical shapes in cross section.更多还原