Decomposition behavior and dielectric properties of Ti-doped BiFeO3 ceramics derived from molten salt method

  • X. H. Zheng
  • Z. H. Ma
  • P. J. Chen
  • D. P. Tang
  • N. Ma


The effects of Ti-doping on the decomposition behavior, crystal structure, sintering behavior and dielectric properties have been investigated for the Ti-doped BiFeO3 ceramics derived from molten salt method. XRD reveals the almost pure phase BiFeO3 is synthesized in the Ti-doped BiFeO3 powders. And the particle size of Ti-doped BiFeO3 powers obviously decreases with the increase of Ti content. However, the sintering temperature elevates significantly after Ti-doping. The DC resistivity can enhance by up to four orders of magnitude (from 104 to 108 Ωm) with only 5 at% Ti doping. But the dielectric constant is suppressed from 104 to 102, and dielectric loss obviously reduces with a small amount of Ti doping. The variation of dielectric properties has been discussed from the decomposition of BiFeO3 phase. The Ti-doping can effectively suppress the decomposition reaction in Ti-doped BiFeO3 ceramics.


BiFeO3 Multiferroic Material Molten Salt Method Pure BiFeO3 Large Leakage Current 
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This work was supported by Program for New Century Excellent Talents in University of Fujian Province (XSJRC2007-16) and Fuzhou University Science Foundation (2010-XQ-01).


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Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • X. H. Zheng
    • 1
    • 2
  • Z. H. Ma
    • 1
  • P. J. Chen
    • 1
  • D. P. Tang
    • 1
  • N. Ma
    • 1
  1. 1.College of Materials Science and EngineeringFuzhou UniversityFuzhouPeople’s Republic of China
  2. 2.State Key Laboratory Breeding Base of PhotocatalysisFuzhou UniversityFuzhouPeople’s Republic of China

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