Effect of Zn/Si ratio on the microstructural and microwave dielectric properties of Zn2SiO4 ceramics

Ngoc Huan Nguyen, Jong Bong Lim, Sahn Nahm, Jong Hoo Paik, Jong Hee Kim

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72 Citations (Scopus)

Abstract

Zn2SiO4 ceramics synthesized by the conventional solid-state method exhibited a low Q × f value, possibly due to the formation of a ZnO second phase. However, with a small ZnO reduction from the Zn2SiO4 ceramics, the ZnO second phase disappeared and grain growth occurred due to the formation of a Si-rich liquid phase. Specimens with a large grain size exhibited an improved Q × f value. In particular, the ceramics with nominal composition Zn1.8SiO3.8 sintered at 1300°C exhibited improved microwave dielectric properties of εr=6.6, Q × f=147 000 GHz, and τf=-22 ppm/°C.

Original languageEnglish
Pages (from-to)3127-3130
Number of pages4
JournalJournal of the American Ceramic Society
Volume90
Issue number10
DOIs
Publication statusPublished - 2007 Oct 1

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dielectric property
Grain growth
ceramics
Dielectric properties
Microwaves
Liquids
Chemical analysis
grain size
liquid
microwave
effect

ASJC Scopus subject areas

  • Ceramics and Composites

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Effect of Zn/Si ratio on the microstructural and microwave dielectric properties of Zn2SiO4 ceramics. / Nguyen, Ngoc Huan; Lim, Jong Bong; Nahm, Sahn; Paik, Jong Hoo; Kim, Jong Hee.

In: Journal of the American Ceramic Society, Vol. 90, No. 10, 01.10.2007, p. 3127-3130.

Research output: Contribution to journalArticle

Nguyen, Ngoc Huan ; Lim, Jong Bong ; Nahm, Sahn ; Paik, Jong Hoo ; Kim, Jong Hee. / Effect of Zn/Si ratio on the microstructural and microwave dielectric properties of Zn2SiO4 ceramics. In: Journal of the American Ceramic Society. 2007 ; Vol. 90, No. 10. pp. 3127-3130.
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