Structural and electric properties of barium strontium titanate based ceramic composite as a humidity sensor

Shanming Ke, Haitao Huang, Huiqing Fan, H. L W Chan, Li Min Zhou

Research output: Journal article publicationJournal articleAcademic researchpeer-review

18 Citations (Scopus)

Abstract

Ba0.6Sr0.4TiO3-MgTiO3(BST-MT) composite ceramics were prepared by reaction of BST powders with molten MgCl2. The sintered composites exhibit a five orders of magnitude decrease in the dc resistivity as the relative humidity (RH) was increased from 5 to 92%. The ac conductivity of the samples obeys a power law at different temperatures within the frequency range of 10 Hz to 10 MHz.
Original languageEnglish
Pages (from-to)1632-1635
Number of pages4
JournalSolid State Ionics
Volume179
Issue number27-32
DOIs
Publication statusPublished - 30 Sep 2008

Keywords

  • BST
  • Conductivity
  • Ferroelectrics
  • Humidity sensor

ASJC Scopus subject areas

  • Electrochemistry
  • Physical and Theoretical Chemistry
  • Energy Engineering and Power Technology
  • Materials Chemistry
  • Condensed Matter Physics

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