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作者:

Wang Sai (Wang Sai.) | Hou Yu-Dong (Hou Yu-Dong.) (学者:侯育冬) | Zheng Mu-Peng (Zheng Mu-Peng.) | Duan Cheng-Hui (Duan Cheng-Hui.) | Zhu Man-Kang (Zhu Man-Kang.) | Yan Hui (Yan Hui.)

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EI Scopus SCIE PKU CSCD

摘要:

The dense FeTiNbO6 ceramics were prepared through a solid-state method. The phase structure and electrical behavior were investigated in detail. The results reveal that FeTiNbO6 are tetragonal rutile structure, and the refined lattice parameters are a=b=0.4652 inn and c=0.3013 nm. Compared with pure TiO2 rutile, the larger crystalline distortion in FeTiNbO6 ceramics induces emergence of ferroelectric behaviour. Due to the equivalent occupations of heterovalent ions in the octahedral center, the FeTiNbO6 ceramics show the dielectric relaxation phenomena of diffuse phase transition and frequency dispersion. The dc conductivity of the sample comes mainly from the ionization and migration of oxygen vacancies, and the transition point is close to the phase transition region. The results indicate that FeTiNbO6 ceramics are promising candidates for lead-free ferroelectric relaxor.

关键词:

diffuse phase transition FeTiNbO6 relaxation behavior rutile-type

作者机构:

  • [ 1 ] [Wang Sai]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Hou Yu-Dong]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Zheng Mu-Peng]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Duan Cheng-Hui]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Zhu Man-Kang]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 6 ] [Yan Hui]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • [Wang Sai]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

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来源 :

JOURNAL OF INORGANIC MATERIALS

ISSN: 1000-324X

年份: 2014

期: 1

卷: 29

页码: 57-61

1 . 7 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:256

JCR分区:3

中科院分区:4

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