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Author:

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

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EI Scopus SCIE

Abstract:

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.

Keyword:

Author Community:

  • [ 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

Reprint Author's Address:

  • 侯育冬

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

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Source :

JOURNAL OF THE AMERICAN CERAMIC SOCIETY

ISSN: 0002-7820

Year: 2010

Issue: 9

Volume: 93

Page: 2491-2494

3 . 9 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 27

SCOPUS Cited Count: 26

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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