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PbZr0.52Ti0.48O3的高压合成

李 霜1,2, 张 琳1,3, 付成伟1, 许大鹏1,等   

  1. 1. 吉林大学 物理学院, 长春 130021; 2. 长春理工大学 理学院, 长春 130022; 3. 黑龙江科技学院 数力系, 哈尔滨 150027;
  • 收稿日期:2007-05-26 修回日期:1900-01-01 出版日期:2008-05-26 发布日期:2008-05-26
  • 通讯作者: 许大鹏

High\|pressure Synthesis of PbZr0.52Ti0.48O3

LI Shuang1,2, ZHANG Lin1,3, FU Cheng wei1, XU Da peng1,et al   

  1. 1. College of Physics, Jilin University, Changchun 130021, China;2. School of Science, Changchun University of Science and Technology, Changchun 130022, China;3. Department of Mathematics and Mechanics, Heilongjiang Institute of Science and Technology, Harbin 150027, China; 
  • Received:2007-05-26 Revised:1900-01-01 Online:2008-05-26 Published:2008-05-26
  • Contact: XU Da peng

摘要: 研究使用2种原料进行PbZr0.52Ti0.48O3的高压合成. 实验结果表明, 以PbO,ZrO2和TiO2(1:0.52∶0.48)为原料, 在1.5 GPa和3.6 GPa压力, 880~1 061 ℃条件下主要形成PbTiO3, ZrO2和Pb三相混合物, 仅在880 ℃附近有少量锆钛酸铅(PZT)相生成. 以Zr0.52Ti0.48O2为B位先驱体, 与PbO混合后进行高压高温合成, 在1.5 GPa, 710~812 ℃条件下形成PbZr0.52Ti0.48O3相, 未发现PbTiO3相. 对高压高温(1.5 GPa, 812 ℃)合成的PbZr0.52Ti0.48O3样品进行变温拉曼测量, 在245 ℃时, 未发生结构相变; 在420 ℃时, 拉曼谱只有177.5,257.7,517 cm-13个峰, 其结构由铁电相转变为立方顺电相, 因此高压合成的PbZr0.52Ti0.48O3居里温度在420 ℃以下. 

关键词: 铁电材料, PbZr0.52Ti0.48O3, 高压, 固相反应, 结构

Abstract: The high-pressure synthesis of lead zirconate titanate (PbZr0.52Ti0.48O3 or PZT) ceramics was investigated with two kinds of precursors as raw materials. The XRD and Raman measurements show that with a mixture of PbO and ZrO2 and TiO2(in molar ratio of 1∶0.52∶0.48) as precursor, the three-phase mixture of PbTiO3, ZrO2and Pb can be obtained under 1.5 GPa and 3.6 GPa at 880~1 061 ℃. A few solid solutions of PZT are formed only at 880 ℃. The single phase PbZr0.52Ti0.48O3 can be synthesized from a mixture of PbO and B-state precursor Zr0.52Ti0.48O2 (in molar ratio of 1∶1) in a temperature range of 710~812 ℃ under 1.5 GPa without intermediate phase PbTiO3. The various temperature Raman spectra of the sample synthesized

Key words: PbZr0.52Ti0.48O3,

中图分类号: 

  • O521.2