Microwave dielectric properties of Li2WO4 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

138 Scopus citations

Abstract

A new ultra-low-temperature firing microwave dielectric ceramic, Li 2WO4 with the phenacite structure, was prepared via solid-state reaction method. The Li2WO4 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 Li2WO4 ceramic was found to be chemically compatible with both silver and aluminum powders at 640°C. All the results indicate that the Li2WO4 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

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Microwave dielectric properties of Li<sub>2</sub>WO<sub>4</sub> ceramic with ultra-low sintering temperature'. Together they form a unique fingerprint.

  • Cite this