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两步包裹法制备0．68PMN-0．32PT压电陶瓷及其性能研究
  • ISSN号：1005-023X
  • 期刊名称：《材料导报》
  • 时间：0
  • 分类：TG146.4[金属学及工艺—金属材料;一般工业技术—材料科学与工程;金属学及工艺—金属学]
  • 作者机构：[1]聊城大学东昌学院物理工程系,聊城252000, [2]聊城大学材料科学与工程学院,聊城252059
  • 相关基金：国家自然科学基金面上项目（50602021;50802038）
作者： 王付军[1], 徐志军[2], 初瑞清[2], 郝继功[2], 张燕杰[2], 陈倩[2]
关键词： 溶胶-凝胶, 包裹法, 0.68PMN-0.32PT介电性能压电性能, sol-gel, particle-coating method, 0. 68PMN-0. 32PT, dielectric properties, piezoelectric properties
中文摘要：

利用两步包裹法，在850℃低温合成出纯钙钛矿结构的0．68Pb（Mg1／3Nb2／3）O3（PMN）-0．32PbTiO3（PT）粉体材料。合成过程中通过TG-DSC分析了其反应过程，并利用XRD、SEM分析了粉体的相结构与陶瓷的微观形貌，指出经1170℃烧结的0．70PMN-0．30PT陶瓷显现出较好的性能，1kHz的室温介电常数达到3530，压电常数达到370pC／N，剩余极化强度为33．8μC／cm^2，矫顽场Ec=6．66kV／cm。烧结温度比常规方法低了约100℃，这种方法也可以推广应用到其它铅基弛豫铁电陶瓷的制备上。

英文摘要：

Using two-step particle-coating method, pyrochlore-free Pb（Mg1/3 Nb2/3 ）O3 （PMN） powders have been successfully synthesized by one calcination step at a relatively lower calcined temperature of 850℃. The TG-DSC is used to analyze the progress of reaction. XRD and SEM measurement are used to investigate the phase structure and microstructure of 0. 68PMN-0. 32PT ceramic. The study results show that the proper sintering temperature of the ceramics papered by two-step particle-coating method is 1170℃, which is much lower than those of via ordinary sintering technique. In addition, the ceramics sinister at 1170℃ possess good properties： d33= 370pC/N, Pr= 33. 8μC/ cm^2, Ec = 6.66kV/cm.

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期刊信息
  • 《材料导报：纳米与新材料专辑》
  • 主管单位:重庆西南信息有限公司(原科技部西南信息中心)
  • 主办单位:重庆西南信息有限公司(原科技部西南信息中心)
  • 主编：
  • 地址：重庆市渝北区洪湖西路18号
  • 邮编：401121
  • 邮箱：matreved@163.com
  • 电话：023-67398525
  • 国际标准刊号：ISSN：1005-023X
  • 国内统一刊号：ISSN：50-1078/TB
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 被引量:3397