MgTiO3doping effect on dielectric properties of Ba0.6Sr0.4TiO3ceramics via a molten salt process

Shanming Ke, Huiqing Fan, Wei Wang, Gangcheng Jiao, Haitao Huang, H. L.W. Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

11 Citations (Scopus)

Abstract

Ba0.6Sr0.4TiO3-MgTiO3composites were prepared by reaction of BST powders with molten MgCl2at various MgCl2/BST molar ratios at 600 and 800 °C in air. The products were examined by X-ray diffraction (XRD) and scanning electron microscopy (SEM). It is shown that the ceramic composites have a relaxor-like ferroelectric transition as MgTiO3is above 8 mol%. The addition of MgTiO3has greatly reduced the dielectric loss of BST ceramics. The BST-MT ceramics could be a promising candidate for tunable microwave device applications.
Original languageEnglish
Pages (from-to)597-601
Number of pages5
JournalComposites Part A: Applied Science and Manufacturing
Volume39
Issue number4
DOIs
Publication statusPublished - 1 Apr 2008

Keywords

  • A. Ceramic-matrix composites (CMCs)
  • A. Smart materials
  • B. Electrical properties
  • E. Powder processing

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials

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