Articles
  • Effects of sintering temperature on the dielectric and impedance properties of phase-pure titanium dioxide ceramics

  • Liqi Cui, Ruifeng Niu and Weitian Wang*

  • Physics Department, Yantai University, China

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this study, phase-pure titanium dioxide TiO2 ceramics were sintered at different temperatures (1,000, 1,100, 1,200, 1,300, 1,400 oC). The effects of sintering temperature on the compaction, dielectric and impedance properties were investigated. Frequency and temperature dependencies of dielectric permittivity and dielectric loss were revealed by using dielectric measurements. When the TiO2 ceramics sintered at 1,400 oC, it exhibits the larger dielectric constant and the smaller dielectric loss as a result of increased density and decreased porosity. The analysis of complex impedance in the frequency range 100 Hz-10 MHz indicated that the TiO2 ceramics were dielectrically combinations of bulk grains and grain boundaries. These results suggest that the sintering temperatures have effects on the microstructure, leading to the variations in dielectric and impedance properties of TiO2 ceramics


Keywords: Ceramics, Dielectric properties, Impedance analysis, Sintering temperature

This Article

  • 2022; 23(1): 57-61

    Published on Feb 28, 2022

  • 10.36410/jcpr.2022.23.1.57
  • Received on Oct 3, 2021
  • Revised on Nov 30, 2021
  • Accepted on Dec 4, 2021

Correspondence to

  • Weitian Wang

  • Physics Department, Yantai University, China
    Tel : +86 13573512787

  • E-mail: wtwang@ytu.edu.cn