Li4WO5: A temperature stable low-firing microwave dielectric ceramic with rock salt structure

Jie Li, Liang Fang, Hao Luo, Jibran Khaliq, Ying Tang, Chunchun Li

Research output: Contribution to journalArticleScientificpeer-review

38 Citations (Scopus)

Abstract

A Li4WO5 ceramic with rock salt structure was prepared by the solid-state reaction method and its microwave dielectric properties was demonstrated for the first time. It could be well densified at relatively low sintering temperature (~890°C). XRD and DTA analysis revealed a phase transformation from cubic to orthorhombic occured at 700°C. Excellent microwave dielectric properties with a near-zero temperature coefficient of resonant frequency ~-2.6ppm/°C, a relative permittivity ~8.6 and a quality factor ~23,100GHz (at 11.0GHz) was obtained. Li4WO5 was found to be chemically compatible with silver powders when sintered at 890°C. All the results indicate that the Li4WO5 ceramic is a promising candidate as a base material in low temperature cofired ceramic technology.

Original languageEnglish
Pages (from-to)243-246
Number of pages4
JournalJournal of the European Ceramic Society
Volume36
Issue number1
DOIs
Publication statusPublished - 2016

Keywords

  • LiWO
  • LTCC
  • Micorowave dielectric properties
  • Rock salt

Fingerprint Dive into the research topics of 'Li<sub>4</sub>WO<sub>5</sub>: A temperature stable low-firing microwave dielectric ceramic with rock salt structure'. Together they form a unique fingerprint.

Cite this