水热法合成Ba_2Ti_9O_(20)陶瓷粉  

Synthesis of Ba_2Ti_9O_(20) powders under hydrothermal condition

作　　者：周东祥[1] 徐建梅[1] 陈晓平[1] 肖红君[2] 

机构地区：[1]华中科技大学电子科学与技术系 [2]中国地质大学(武汉)材料科学与化学工程系

出　　处：《华中科技大学学报（自然科学版）》2003年第10期26-27,34,共3页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家高技术研究发展计划资助项目 (2 0 0 1AA ZB32 0 1 )

摘　　要：采用水热法合成了Ba2 Ti9O2 0 陶瓷粉 ,研究了水热反应条件对合成产物的影响 .研究表明 ,Ba2 Ti9O2 0 相的形成与前驱物的性质有很大的关系 ,当钛前驱物为TiO2 时 ,难以合成目标相 ,当钛前驱物为TiCl4时 ,能够形成大量的目标相 ,用此粉体制备陶瓷 ,可以不经过预烧就能得到较纯的Ba2 Ti9O2 0 相陶瓷体 ,且烧结温度比传统法要低 1 0Ba 2Ti 9O 20 powders were synthesized by hydrothermal method. The effect of the reaction conditions on the synthesized product was studied. The result indicated that the formation of Ba 2Ti 9O 20 phase was relative to the precursors. It was difficult to form the Ba 2Ti 9O 20 phase when the titanium precursor was TiO 2 not TiCl 4. Without calcinations, the ceramics of pure Ba 2Ti 9O 20 phase could be made with the powders from TiCl 4, the sintering temperature was about 100?℃ lower than that in the tradition method.

关 键 词：微波介质陶瓷 水热法 Ba2Ti9O20相 

分 类 号：O48[理学—固体物理]