Pb的过量值对溶胶-水热法合成钙钛矿型PZT反铁电陶瓷粉体的影响  

Influence of Pb Excessive Value on the Synthesis of Perovskite PZT Antiferroelectric Ceramic Powder by Sol-Hydrothermal Method

作　　者：胡艳华 余占军 王丽霞 宋艳 雷达 HU Yanhua;YU Zhanjun;WANG Lixia;SONG Yan;LEI Da(Department of Chemical Engineering, Ordos Institute of Applied Technology, Ordos 017000, China;Inner Mongolia Jiuke Kangrui Environmental Protection Technology Co., Ltd., Ordos 017000, China;Inner Mongolia Yiji Group Fucheng Forging Co., Ltd., Baotou 014030, China;The Third Branch of Inner Mongolia First Machinery Group Co., Ltd., Baotou 014030, China)

机构地区：[1]鄂尔多斯应用技术学院化学工程系,鄂尔多斯017000 [2]内蒙古久科康瑞环保科技有限公司,鄂尔多斯017000 [3]内蒙古一机富成锻造有限责任公司,包头014030 [4]内蒙古第一机械集团有限公司第三分公司,包头014030

出　　处：《人工晶体学报》2020年第10期1930-1934,共5页Journal of Synthetic Crystals

基　　金：高等学校科学研究项目(NJZY17087);内蒙古自然科学基金项目(2018MS01025);内蒙古自治区高等学校“青年科技英才支持计划”(NMJY-18-A15);内蒙古科技厅重大科技计划项目(201802017)。

摘　　要：采用溶胶-水热法合成了具有单一钙钛矿结构的PZT反铁电陶瓷粉体。根据课题组前期的实验结果,选取的水热反应温度为180℃,水热反应时间为24 h,矿化剂KOH的浓度为3 mol/L,探讨了Pb的过量值对合成PZT陶瓷粉体的影响。实验发现,Pb的过量值过低,不足以补偿反应过程中Pb的损失量,A位的Pb缺失易导致PZT粉体结晶度的下降,颗粒结晶不完整。随着Pb过量值的增加,颗粒结晶增强,结晶也越完整。当Pb过量增加到10%时,实验获得了结晶良好的PZT粉体。因此,本实验Pb的最佳过量值为10%。PZT antiferroelectric ceramic powder with single perovskite structure was synthesized by sol-hydrothermal method.According to the test results of the research group in the early stage,the hydrothermal reaction temperature was selected as 180℃,the hydrothermal reaction time as 24 h,and the concentration of mineralizer KOH as 3 mol/L.The effects of the excessive value of Pb on the synthesis of PZT ceramic powder were discussed.It is found that the excessive value of Pb is too low to compensate for the loss of Pb in the reaction process.The loss of Pb at A position is easily lead to the decrease of the crystallinity of PZT powder and the incomplete crystallization of particles.With the increasing of Pb excessive value,the particle crystallization is enhanced and the crystallization is more complete.When the content of Pb increases to 10%,PZT powder with good crystallinity is obtained.Therefore,the best excessive value of Pb in this experiment is determined as 10%.

关 键 词：PbZr1-xTixO3 反铁电陶瓷 溶胶-水热法 Pb的过量值 钙钛矿结构 

分 类 号：TQ174.75[化学工程—陶瓷工业]