The effect of Ca0.61Nd0.26TiO3 addition on the microwave dielectric properties of (Mg0.95Ni0.05)TiO3 ceramics

Chun Hsu Shen, Cheng-Liang Huang, Chuan-Feng Shih, Chih Ming Huang

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Abstract

The effect of Ca0.61Nd0.26TiO3 addition on the microwave dielectric properties of (Mg0.95Ni0.05)TiO3 ceramics was investigated. The Ca0.61Nd0.26TiO3 content plays a significant role in improving the dielectric properties. Microwave dielectric measurements show an increase in the dielectric constant (εr) and temperature coefficient of the resonant frequency (τf) and a decrease in the quality factor (Q × f value) with increasing Ca0.61Nd0.26TiO3 content. By properly adjusting the Ca0.61Nd0.26TiO3 content, a zero temperature coefficient of resonate frequency (τf) can also be obtained, which make (Mg0.95Ni0.05)TiO3 a promising material in wireless systems. At 1350 °C, the 0.85(Mg0.95Ni0.05)TiO3-0.15Ca0.61Nd0.26TiO3 ceramics possess excellent microwave dielectric properties: a dielectric constant (εr) of 24.05, a Q × f value of 67,000 GHz, and a τf value of -9.3 ppm/°C.

Original languageEnglish
Pages (from-to)391-395
Number of pages5
JournalJournal of Alloys and Compounds
Volume475
Issue number1-2
DOIs
Publication statusPublished - 2009 May 5

All Science Journal Classification (ASJC) codes

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

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