搜索

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

用正电子湮没研究钙钛矿结构压电陶瓷中的点缺陷

何元金 马兴坤 桂治轮 李龙土

引用本文:
Citation:

用正电子湮没研究钙钛矿结构压电陶瓷中的点缺陷

何元金, 马兴坤, 桂治轮, 李龙土

POINT DEFECT STUDIES ON PEROVSKITE STRUCTURED PIEZOELECTRIC CERAMICS USING POSITRON ANNIHILATION

HE YUAN-JIN, MA XING-KUN, GUI ZHI-LUN, LI LONG-TU
PDF
导出引用
  • 用正电子湮没寿命谱技术对有意掺杂的或被杂质替代的钙钛矿结构压电陶瓷中的点缺陷进行了研究.掺杂了La3+的PbTiO3,掺杂了Sr2+,Cd2+和La3+的Pb(Mg1/3Nb2/3)0.375Ti0.375Zr0.25O3,掺杂了Ca2+的BaT
    A systematic investigation of different types of lattice defects in intentionally doped or impurity substituted piezoelectric ceramics was carried out by using positron annihilation.La3+ doped PbTiO3,Sr2+,Cd2+,and La3+ doped Pb (Mg1/3Nb2/3)0.375Ti0.375Zr0.25O3;Ca2+ doped BaTiO3; and Nb5+ doped SrTiO3 were chosen as testing materials.It was found that positrons can be traped by cation vacancies,oxygen vacancies,as well as defects associated with lattice deformations,but with different dynamic specific trapping rates and annihilation characteristics.A new possible method for determining the defect species in perovskite structured piezoelectric ceramics is presented.
    • 基金项目: 国家自然科学基金资助的课题.
计量
  • 文章访问数:  6270
  • PDF下载量:  765
  • 被引次数: 0
出版历程
  • 收稿日期:  1997-05-14
  • 刊出日期:  1998-01-20

/

返回文章
返回