Dielectric properties of (1 - x)(Mg0.95Zn0.05)TiO3-x(Na0.5Nd0.5)TiO3 ceramic system at microwave frequencies

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Abstract

Ceramics in the system (1 - x)(Mg0.95Zn0.05)TiO3-x(Na0.5Nd0.5)TiO3 were prepared by the conventional mixed oxide route. It shows a two-phase system of an ilmenite structured (Mg0.95Zn0.05)TiO3 and a perovskite structured (Na0.5Nd0.5)TiO3, which were confirmed by XRD and EDX. In addition, (Mg0.95Zn0.05)Ti2O5 was identified as a second phase. It was also responsible for a rapid drop in the Q × f value. The temperature coefficient of resonant frequency was a function of compositional ratio. Specimen with x = 0.16 possessed an excellent combination of microwave dielectric properties: εr ~ 24.27, Q × f ~ 82,000 GHz (at 9 GHz) and τf ~ 0 ppm/°C.

Original languageEnglish
Pages (from-to)2516-2519
Number of pages4
JournalMaterials Letters
Volume62
Issue number16
DOIs
Publication statusPublished - 2008 Jun 15

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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