Ultra-low firing high-k scheelite structures based on [(Li 0.5Bi0.5)xBi1-x][Mo xV1-x]O4 microwave dielectric ceramics

Di Zhou, Clive A. Randall, Hong Wang, Li Xia Pang, Xi Yao

Research output: Contribution to journalArticle

51 Scopus citations

Abstract

In this work, dense ceramic samples across the solid solution of the [(Li0.5Bi0.5)xBi1-x][Mo xV1-x]O4 system are prepared using the solid-state reaction process. The monoclinic phase region could be obtained for 0≤x<0.098 and the scheelite tetragonal solid solution region could be obtained for 0.098<x≤1. When x=0.098, the boundary composition [(Li 0.5Bi0.5)0.098Bi0.902][Mo 0.098V0.902]O4 could be readily sintered at 650°C and also have excellent microwave properties with a high relative permittivity of 81, and a Q × f value of 8000 GHz and a low temperature coefficient of +9.7 ppm/°C. This ceramic is chemically compatible with both Al and Cu electrode materials at its sintering temperature. It can be an excellent candidate for ultra-low-temperature co-fired ceramic technology and is the highest permittivity microwave material found to date with sintering considerations as low as 650°C.

Original languageEnglish (US)
Pages (from-to)2147-2150
Number of pages4
JournalJournal of the American Ceramic Society
Volume93
Issue number8
DOIs
StatePublished - Aug 1 2010

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this