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

doi:10.1111/j.1551-2916.2008.02499.x

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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83 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 ε_r=6.7, Q × f=121 200 GHz, and τ_f=-17 ppm/°C were obtained from the MgSiO₃ ceramics sintered at 1380°C for 13 h.

Original language	English
Pages (from-to)	2747-2750
Number of pages	4
Journal	Journal of the American Ceramic Society
Volume	91
Issue number	8
DOIs	https://doi.org/10.1111/j.1551-2916.2008.02499.x
Publication status	Published - 2008 Aug

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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10.1111/j.1551-2916.2008.02499.x

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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.",

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AU - Song, Myung Eun

AU - Kim, Jin Seong

AU - Joung, Mi Ri

AU - Nahm, Sahn

AU - Kim, Young Sik

AU - Paik, Jong Hoo

AU - Choi, Byung Hyun

PY - 2008/8

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N2 - 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.

AB - 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.

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Synthesis and microwave dielectric properties of MgSiO₃ ceramics

Abstract

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