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作者:

Shi, Yun (Shi, Yun.) | Hou, Yu-Dong (Hou, Yu-Dong.) (学者:侯育冬) | Wang, Chao (Wang, Chao.) | Ge, Hai-Yan (Ge, Hai-Yan.) | Zhu, Man-Kang (Zhu, Man-Kang.)

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摘要:

A new type of FeTiTaO6 ceramics with a high density was synthesized by the solid-state method. X-ray diffraction and scanning electron microscopy patterns indicate that the specimens exhibit a rutile structure and the mean particle size was about 200-300 nm. The heterovalent substitutions of Fe3+ and Ta5+ at Ti4+ site drive the incipient ferroelectric to the relaxor behavior, and a strong dispersion of the maximum dielectric permittivity appears around T-m, which shifts towards higher temperatures with the increasing frequency. The variation of T-m with frequency follows the Vogel-Fulcher relationship well, wherein E-a=0.068 eV, T-f=508 K, and f(0)=109 Hz. These results indicate that the nonperovskite-type FeTiTaO6 ceramic is a promising candidate for lead-free relaxor ferroelectrics in practical applications.

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作者机构:

  • [ 1 ] [Shi, Yun]Beijing Univ Technol, Dept Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Hou, Yu-Dong]Beijing Univ Technol, Dept Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Wang, Chao]Beijing Univ Technol, Dept Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Ge, Hai-Yan]Beijing Univ Technol, Dept Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Zhu, Man-Kang]Beijing Univ Technol, Dept Mat Sci & Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • 侯育冬

    [Hou, Yu-Dong]Beijing Univ Technol, Dept Mat Sci & Engn, Beijing 100124, Peoples R China

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来源 :

JOURNAL OF THE AMERICAN CERAMIC SOCIETY

ISSN: 0002-7820

年份: 2010

期: 9

卷: 93

页码: 2491-2494

3 . 9 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

JCR分区:1

中科院分区:2

被引次数:

WoS核心集被引频次: 27

SCOPUS被引频次: 26

ESI高被引论文在榜: 0 展开所有

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