Formation and microwave dielectric properties of the Mg2V 2O7 Ceramics

Mi Ri Joung, Jin Seong Kim, Myung Eun Song, Sahn Nahm, Jong Hoo Paik, Byung Hyun Choi

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Abstract

The formation process and microwave dielectric properties of the Mg 2V2O7 ceramics were investigated. The MgV 2O6 phase that was formed at around 450°C interacted with remnant MgO above 590°C to form a homogeneous monoclinic Mg 2V2O7 phase. Finally, this monoclinic Mg 2V2O7 phase was changed to a triclinic Mg 2V2O7 phase for the specimen fired at 800°C. Sintering at 950°C for more than 5 h produced high-density triclinic Mg2V2O7 ceramics. In particular, the Mg2V2O7 ceramics sintered at 950°C for 10 h exhibited the good microwave dielectric properties of εr=10.5, Q × f=58 275 GHz, and τf=-26.9 ppm/°C.

Original languageEnglish
Pages (from-to)1621-1624
Number of pages4
JournalJournal of the American Ceramic Society
Volume92
Issue number7
DOIs
Publication statusPublished - 2009 Jul 1

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ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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