Synthesis and microwave dielectric properties of MgSiO3 ceramics

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

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68 Citations (Scopus)

Abstract

MgSiO3 ceramics were synthesized and their microwave dielectric properties were investigated. The Mg2SiO4 phase was formed at temperatures lower than 1200°C, while the orthorhombic MgSiO3 phase started to form by the reaction of SiO2 and Mg 2SiO4 in the specimen fired at 1200°C. The structure of the MgSiO3 ceramics was transformed from orthorhombic to monoclinic when the sintering temperature exceeded 1400°C. A dense microstructure was developed for the specimens sintered at above 1350°C. The excellent microwave dielectric properties of εr=6.7, Q × f=121 200 GHz, and τf=-17 ppm/°C were obtained from the MgSiO3 ceramics sintered at 1380°C for 13 h.

Original languageEnglish
Pages (from-to)2747-2750
Number of pages4
JournalJournal of the American Ceramic Society
Volume91
Issue number8
DOIs
Publication statusPublished - 2008 Aug

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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    Song, M. E., Kim, J. S., Joung, M. R., Nahm, S., Kim, Y. S., Paik, J. H., & Choi, B. H. (2008). Synthesis and microwave dielectric properties of MgSiO3 ceramics. Journal of the American Ceramic Society, 91(8), 2747-2750. https://doi.org/10.1111/j.1551-2916.2008.02499.x