Growth and characterization of bismuth magnesium titanate Bi(Mg 1/2Ti1/2)O3

Yasuhiro Yoneda, Hiroyuki Saitoh, Kenji Yoshii, Takashi Nishida, Hironori Hayakawa, Naoshi Ikeda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

A new oxide, Bi(Mg1/2Ti1/2)O3 was prepared using a high-pressure high-temperature technique at 8 GPa and 1000°C. As-sintered Bi(Mg1/2Ti1/2)O3 has the BiFeO 3-type perovskite structure with the rhombohedral R3c. After ground, crystal structure changed to tetragonal P4mm. Structure parameters of tetragonal Bi(Mg1/2Ti1/2)O3 were refined from laboratory X-ray powder diffraction data (a = 4.033(10) Å, and c = 3.938(10) Å). Bi(Mg1/2Ti1/2)O3 does not decompress at ambient pressure, but the structure changed from rhombohedral to tetragonal on heating above 800° C. This phase transition was nonreversible. Bi(Mg 1/2Ti1/2)O3 is expected to be one of the end members of lead-free ferroelectric materials.

Original languageEnglish
Title of host publicationAsian Ceramic Science for Electronics III and Electroceramics in Japan XII
PublisherTrans Tech Publications Ltd
Pages3-8
Number of pages6
ISBN (Print)0878493069, 9780878493067
DOIs
Publication statusPublished - Jan 1 2010
Event6th Asian Meeting on Electroceramics, AMEC-6, in conjunction with the Electronics Division Meeting of the Ceramic Society of Japan - Tsukuba, Japan
Duration: Oct 22 2008Oct 24 2008

Publication series

NameKey Engineering Materials
Volume421-422
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Other

Other6th Asian Meeting on Electroceramics, AMEC-6, in conjunction with the Electronics Division Meeting of the Ceramic Society of Japan
CountryJapan
CityTsukuba
Period10/22/0810/24/08

Keywords

  • Crystal structure
  • High-pressure synthesis

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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    Yoneda, Y., Saitoh, H., Yoshii, K., Nishida, T., Hayakawa, H., & Ikeda, N. (2010). Growth and characterization of bismuth magnesium titanate Bi(Mg 1/2Ti1/2)O3. In Asian Ceramic Science for Electronics III and Electroceramics in Japan XII (pp. 3-8). (Key Engineering Materials; Vol. 421-422). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.421-422.30