湿法合成PZT粉体的研究  

Study on synthesis of PZT piezoelectric ceramics powders by wet method

作　　者：韩晓春[1] 刘军[1] 田沃[1] 王超[1] 任玉龙[1] 许晶晶[1] 林丽[1] 

机构地区：[1]江苏大学材料科学与工程学院,镇江212013

出　　处：《化工新型材料》2014年第7期35-37,共3页New Chemical Materials

基　　金：863计划(2009AA03Z107);江苏省基础研究计划(BK2009718);江苏省高校优势学科建设工程资助项目

摘　　要：以硝酸铅、氧氯化锆、钛酸四丁酯为反应物前躯体,氢氧化钾为矿化剂,采用水热法和溶剂热法合成PZT粉体。系统研究了两种方法得到的PZT晶体物相和形貌的区别,通过XRD和SEM对粉体进行了表征。研究结果表明:在KOH浓度为2mol/L,200℃反应6h的条件下两种方法均得到了粒径约为1μm,粒径均匀的钙钛矿结构的PZT粉体;在两种反应体系中引入PVA,都得到了径向尺寸约为100nm的棒体结构。但是两种方法得到的PZT粉体的形貌有很大的不同。Lead zirconate titanate （PZT） powders were synthesized by hydrothermal process and solvothermal process,in which Pb（NO3）2 , ZrOCl2 · 8 H2O and TICl4 were used as raw materials and KOH asmineralizer. The effects of different synthetic process on the morphology and phase of powders was studied. The powders were characterized by means of X-ray diffraction and transmission electron microscopy （TEM）. The results showed that PZT powders with homogeneous size distribution and an average particle size of 1 μm can be obtained at 200℃ by the two wet method with KOH concentration of 2mol/L and reaction time of 6 h. The PZT nanorods with diameters in 100nm can be obtained when some PVA were introduced into the two reaction system. But the morphology of PZT powders with this two methods were quite different.

关 键 词：水热 溶剂热 PZT PVA 

分 类 号：TB383.3[一般工业技术—材料科学与工程]