Structural, chemical and dielectric properties of ceramic injection moulded Ba(Zn1/3Ta2/3)O3 microwave dielectric ceramics

Shaojun Liu, Vincent A. Merrick, Nathan Newman

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

We report the development of a ceramic injection moulding (CIM) process to produce complex-shaped structures using high-performance microwave ceramic materials. In particular, we describe the synthesis methods and the structural, chemical and dielectric properties of Ba(Zn1/3Ta2/3)O3 (BZT) doped with Ni and Zr ceramics produced using ceramic injection moulding. Sintering the ceramic injection moulded Ba(Zn1/3Ta2/3)O3 to a relative density of ∼94% was possible at a temperature of 1680 °C and a time of 48 h. The best samples to date exhibit a dielectric constant, εr, of ∼30, a Q value, of ∼31,250 (i.e. tan δ < 3.2 × 10-5) at 2 GHz, and a temperature coefficient of resonance frequency, τf, of 0.1 ppm/°C.

Original languageEnglish (US)
Pages (from-to)3273-3278
Number of pages6
JournalJournal of the European Ceramic Society
Volume26
Issue number15
DOIs
StatePublished - Aug 17 2006

Keywords

  • Ba(Zn, Ta)O
  • Dielectrics properties
  • Injection moulding
  • Resonators
  • Tantalates

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Structural, chemical and dielectric properties of ceramic injection moulded Ba(Zn<sub>1/3</sub>Ta<sub>2/3</sub>)O<sub>3</sub> microwave dielectric ceramics'. Together they form a unique fingerprint.

  • Cite this