水热加工技术制备压电陶瓷锆钛酸铅(PZT)晶体粉末的研究  

STUDY ON PREPARATION OF PZT CRYSTALLINE POWDER FOR PIEZOELECTRIC CERAMICS BY HYDROTHERMAL PROCESSING TECHNIQUE

作　　者：胡嗣强[1] 黎少华[1] 梁焕珍[1] 于道成[1] 毛铭华[1] 

机构地区：[1]中国科学院化工冶金研究所,北京100080

出　　处：《化工冶金》1994年第1期49-56,共8页

摘　　要：本文采用水热加工技术对压电陶瓷PZT晶体粉末进行合成研究．实验表明合成需在强碱中进行．取用新制备的水热前驱物Pb（OH）2、TiO（OH）2和ZrO（OH）2，在200℃下水热合成40－60min．水热体系在两个KOH浓度范围内能有效合成．第一个区域为水热体系的KOH浓度0．1－0．27mol／L，第二个区域为体系的KOH浓度高于2．0mol／L．低碱度有效的合成给商品化生产带有了许多方便、经济和可能性．为了分析实验结果对合成机理提出了假说和讨论．The hydrothermal synthesis of crystalline powder of Pb(Zr0.52Ti0.46)O3 (PZT)is studied. The precursors of Pb(OH)2, TiO(OH)2 and ZrO(OH)2 prepared from raw material of Pb(NO3)2, TiCl4 and ZrOCl2·8H2O were heated for 40－60min at 200℃ in KOH solution. Itwas found that the PZT could be formed in two KOH concentration range of 0.18±0.8mol/Land > 2.0mol/L. The crystallin powder produced in lower KOH conceatration was cubic with a particle size of 0.3-0.5μm and the powder obtained in higher KOH conceatration was ultra-fine.It is more convenient and economic for commercial production of PZT in lower concentration of KOH solution. A mechanism is suggested to explain the sylithesise proces.

关 键 词：PZ 合成 水溶液 水热加工技术 压电陶瓷 锆钛酸铅晶体粉末 氢氧化钾 

分 类 号：TM223[一般工业技术—材料科学与工程]