ISG法制备钙钛矿纳米陶瓷薄膜  

PREPARING PROCESS OF NANOCRYSTALLINE THIN FILM OF PEROVSKITE-TYPE COMPLEX OXIDE BY ISG METHOD

作　　者：侯峰[1] 徐廷献[1] 阴育新[1] 

机构地区：[1]天津大学材料科学与工程学院,天津300072

出　　处：《天津大学学报（自然科学与工程技术版）》2000年第3期397-400,共4页Journal of Tianjin University：Science and Technology

基　　金：国家基金委重大项目! (5999552 0 6);863计划新材料领域资助项目! (715- 0 12 - 0 150 )

摘　　要：采用 ISG法合成钙钛矿稀土复合氧化物 L a MO3(M为 Ni3+、Co3+或 Fe3+ )纳米陶瓷薄膜 .研究了 p H值对柠檬酸与 L a3+ 和 M离子络合的影响及络合方式对形成 L a MO3的作用 ,发现 L a MO3前驱体凝胶膜对形成陶瓷薄膜有很大影响 ,慢的干燥速度。A great deal of work has been given to the synthetic process of nano crystalline thin film of perovskite structure complex oxide LaMO 3 (M=Ni 3+ ,Co 3+ ,Fe 3+ ) by means of sol gel method using citric acid as a chelating agent.The pH value plays an important role in citric acid chelating La 3+ and metal ion M.The influence of the ways in which the metal ions may be complex with citric acid is studied.It is found that good gel film benefits the formation of ceramic thin film.Lower drying rate profits the appearance of complete gel film.When pretreatment temperature accords with sintering temperature,good ceramic thin films can be prepared.

关 键 词：溶胶-凝胶法 钙钛矿 纳米陶瓷薄膜 ESG法 

分 类 号：TQ174.6[化学工程—陶瓷工业]