Dielectric properties of magnesium oxide at microwave frequency

Jhih Yong Chen, Wei Hung Hsu, Cheng Liang Huang

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

To understand the role of a residual MgO phase plays inside a ceramic body, a simple magnesium oxide ceramics was prepared to investigate its microwave dielectric properties. The εr and τf values of specimens using simple MgO only vary in a small range at the investigated temperatures (1400-1550 °C) implying they are not sensitive to the sintering temperature. However, the Q × f is strongly related to the density of the ceramics and a high Q × f of ∼113,600 GHz can be achieved by sintering the specimen at 1490 °C for 4 h. It indicates MgO may exist as a low-loss dielectric inside a dense ceramic body at microwave frequency.

Original languageEnglish
Pages (from-to)284-287
Number of pages4
JournalJournal of Alloys and Compounds
Volume504
Issue number1
DOIs
Publication statusPublished - 2010 Aug 31

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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