Microwave dielectric properties of Li 2 WO 4 ceramic with ultra-low sintering temperature

Di Zhou, Clive A. Randall, Li Xia Pang, Hong Wang, Jing Guo, Gao Qun Zhang, Xin Guang Wu, Li Shui, Xi Yao

Research output: Contribution to journalArticle

119 Citations (Scopus)

Abstract

A new ultra-low-temperature firing microwave dielectric ceramic, Li 2 WO 4 with the phenacite structure, was prepared via solid-state reaction method. The Li 2 WO 4 ceramic can be well sintered at 640°-660°C, with a microwave relative permittivity ∼5.5, a Q×f value about 62 000 GHz, and a negative temperature coefficient of -146 ppm/°C at 15.7 GHz. From an X-ray diffraction analysis, the Li 2 WO 4 ceramic was found to be chemically compatible with both silver and aluminum powders at 640°C. All the results indicate that the Li 2 WO 4 ceramic is a promising candidate for ultra-low temperature cofired ceramic technology, especially for dielectric substrate application.

Original languageEnglish (US)
Pages (from-to)348-350
Number of pages3
JournalJournal of the American Ceramic Society
Volume94
Issue number2
DOIs
StatePublished - Feb 1 2011

Fingerprint

Dielectric properties
Sintering
Microwaves
Negative temperature coefficient
Aluminum
Solid state reactions
Silver
Powders
X ray diffraction analysis
Permittivity
Temperature
Substrates

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Zhou, Di ; Randall, Clive A. ; Pang, Li Xia ; Wang, Hong ; Guo, Jing ; Zhang, Gao Qun ; Wu, Xin Guang ; Shui, Li ; Yao, Xi. / Microwave dielectric properties of Li 2 WO 4 ceramic with ultra-low sintering temperature In: Journal of the American Ceramic Society. 2011 ; Vol. 94, No. 2. pp. 348-350.
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Microwave dielectric properties of Li 2 WO 4 ceramic with ultra-low sintering temperature . / Zhou, Di; Randall, Clive A.; Pang, Li Xia; Wang, Hong; Guo, Jing; Zhang, Gao Qun; Wu, Xin Guang; Shui, Li; Yao, Xi.

In: Journal of the American Ceramic Society, Vol. 94, No. 2, 01.02.2011, p. 348-350.

Research output: Contribution to journalArticle

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