Investigation of the dielectric properties of MnO-additive Pb(Fe2/3W1/3)-PbTiO3 relaxors prepared by two different methods

Cheng Shong Hong, Sheng Yuan Chu, Wen Chang Su, Ren Chuan Chang, Hsiau Hsian Nien, Yung Der Juang

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In this paper, 0.75Pb(Fe2/3W1/3)O3-0.25PbTiO3-0.15 wt% MnO (0.75PFW-0.25PT-0.15 wt% MnO) ceramics are synthesized by two different methods, the conventional direct oxide synthesized (DS) method and two-step indirect synthesized (IS) method. The low-field dielectric responses are investigated by using the empirical law, the Curie-Weiss law, the modified-Landau theory and the spin-glass model. Due to the IS method, the lattice structure and the grain structure of the samples are changed. Furthermore, the dielectric properties are evidently modified. It is suggested that the ordering degree of B-site cations is enhanced by using the IS synthesized method.

Original languageEnglish
Pages (from-to)658-667
Number of pages10
JournalJournal of Alloys and Compounds
Volume460
Issue number1-2
DOIs
Publication statusPublished - 2008 Jul 28

All Science Journal Classification (ASJC) codes

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

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