固相反应法、柠檬酸盐法制备(NaBi)_(0.5)TiO_3陶瓷及性能表征  

Characterization of (NaBi)_(0.5)TiO_3 Ceramic Fabricated by Solid Reaction and Citrate Method

作　　者：王戈明[1] 颜莎宁[1] 杜城[1] 彭斌[1] 李珍[1] 

机构地区：[1]中国地质大学材料科学与化学工程学院,湖北武汉430074

出　　处：《材料开发与应用》2007年第2期29-32,共4页Development and Application of Materials

摘　　要：分别用固相反应法和柠檬酸盐法合成了(NaBi)0.5TiO3陶瓷前驱体,并烧制成相应的陶瓷。用激光粒度分析仪、XRD、SEM分别对前驱体和陶瓷的粒度、相组成、显微结构等进行表征,并检测不同烧结温度下的压电常数d33。研究表明,用柠檬酸盐法合成的NBT前驱体所需合成温度低于固相反应法;所制陶瓷具有更高的压电常数d33,在1150℃下烧结,d33可达61.6pc/n。Solid reaction and citrate method were employed to prepare （NaBi）0.5TiO3. ceramic powder. The granularity, phases, mierostructure and other characters of the ceramic powder and ceramic were investigated by using laser granularity analyse apparatus, XRD,SEM and the piezoelectric constant d33 of the ceramics was also detected under different sintering temperatures. The results showed that NBT ceramic prepared by citrate method has lower sintering temperature and the more favorable piezoelectric property than that prepared by solid reaction. When the sintering temperature is 1150℃ ,the piezoelectric constant d33 can reach 61.6pc/n.

关 键 词：(NaBi)0.5TiO3 固相反应法 柠檬酸盐法 压电常数 

分 类 号：TM282[一般工业技术—材料科学与工程]