Microwave properties of B2O3-doped Nd(Mg 1 / 2Ti1 / 2)O3-CaTiO3 dielectric resonators at microwave frequency

Cheng Liang Huang, Yuan Bin Chen

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The effects of B2O3 addition on the microwave dielectric properties and the microstructures of (1 - x)CaTiO 3-xNd(Mg1 / 2Ti1 / 2)O3 ceramics prepared by conventional solid-state routes have been investigated. Doping with 0.5 wt.% B2O3 can effectively promote the densification and the microwave dielectric properties of (1 - x)CaTiO3-xNd(Mg 1 / 2Ti1 / 2)O3. It is found that CaTiO 3-Nd(Mg1 / 2Ti1 / 2)O3 ceramics can be sintered at 1300 °C due to the liquid phase effect of a B 2O3 addition observed by scanning electronic microscopy (SEM). The system forms a solid solution throughout the entire compositional range. The dielectric constant decreases from 143 to 27 as x varies from 0.1 to 1.0. In the (1 - x)CaTiO3-xNd(Mg1 / 2Ti 1 / 2)O3 system, the microwave dielectric properties can be effectively controlled by varying the x value. The microwave dielectric properties indicate the possibility of a phase transformation for x between 0.3 and 0.5.

Original languageEnglish
Pages (from-to)198-202
Number of pages5
JournalMaterials Letters
Volume60
Issue number2
DOIs
Publication statusPublished - 2006 Jan 1

All Science Journal Classification (ASJC) codes

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

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