Dielectric properties of a low-loss (1 - x)(Mg0.95Zn0.05)2TiO4-xSrTiO3 ceramic system at microwave frequencies

Cheng-Liang Huang, Shih Sheng Liu, Shih Hsuan Chen

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Low-loss ceramics in the (1 - x)(Mg0.95Zn0.05)2TiO4-xSrTiO3 system have been prepared by the conventional mixed oxide route and their microwave dielectric properties have been investigated. A two-phase system was confirmed by the XRD patterns, the EDS analysis and the measured lattice parameters. The addition of SrTiO3, having a smaller grain size in comparison with that of (Mg0.95Zn0.05)2TiO4, could effectively promote the densification in the (Mg0.95Zn0.05)2TiO4 matrix. The specimen using 0.94(Mg0.95Zn0.05)2TiO4-0.04SrTiO3 sintered at 1270 °C possesses an excellent combination of microwave dielectric properties: εr of ∼18, Q × f of ∼125,600 GHz (at 10 GHz), and τf of ∼0 ppm/°C. The dielectric is proposed as a candidate material for low-loss microwave and millimeter wave applications.

Original languageEnglish
Pages (from-to)794-797
Number of pages4
JournalJournal of Alloys and Compounds
Volume480
Issue number2
DOIs
Publication statusPublished - 2009 Jul 8

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Microwave frequencies
Dielectric properties
Microwaves
Densification
Millimeter waves
Oxides
Lattice constants
Energy dispersive spectroscopy

All Science Journal Classification (ASJC) codes

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

Cite this

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title = "Dielectric properties of a low-loss (1 - x)(Mg0.95Zn0.05)2TiO4-xSrTiO3 ceramic system at microwave frequencies",
abstract = "Low-loss ceramics in the (1 - x)(Mg0.95Zn0.05)2TiO4-xSrTiO3 system have been prepared by the conventional mixed oxide route and their microwave dielectric properties have been investigated. A two-phase system was confirmed by the XRD patterns, the EDS analysis and the measured lattice parameters. The addition of SrTiO3, having a smaller grain size in comparison with that of (Mg0.95Zn0.05)2TiO4, could effectively promote the densification in the (Mg0.95Zn0.05)2TiO4 matrix. The specimen using 0.94(Mg0.95Zn0.05)2TiO4-0.04SrTiO3 sintered at 1270 °C possesses an excellent combination of microwave dielectric properties: εr of ∼18, Q × f of ∼125,600 GHz (at 10 GHz), and τf of ∼0 ppm/°C. The dielectric is proposed as a candidate material for low-loss microwave and millimeter wave applications.",
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Dielectric properties of a low-loss (1 - x)(Mg0.95Zn0.05)2TiO4-xSrTiO3 ceramic system at microwave frequencies. / Huang, Cheng-Liang; Liu, Shih Sheng; Chen, Shih Hsuan.

In: Journal of Alloys and Compounds, Vol. 480, No. 2, 08.07.2009, p. 794-797.

Research output: Contribution to journalArticle

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