Structure and dielectric properties of Ba1-xLa xTi1-xCrxO3 ceramics

Mamoru Fukunaga, Guobao Li, Yoshiaki Uesu, Kay Kohn

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In order to develop useful lead-free ferroelectric materials based on BaTiO 3 , Ba1-x Lax Ti1-x Crx O 3 ceramics were synthesized and their dielectric properties were studied. The crystal structure of Ba1-x Lax Ti 1-x Crx O3 changes in the sequence of tetragonal, cubic, rhombohedral and orthorhombic as x increases. Curie temperature T C decreases largely as x increases. The samples except for x = 0.003 show broad peak of high dielectric constant with small dielectric loss. The frequency dispersion like in relaxors is observed below room temperature with x = 0.08.

Original languageEnglish
Pages (from-to)79-84
Number of pages6
JournalFerroelectrics
Volume286
DOIs
Publication statusPublished - Jun 1 2003

Keywords

  • BaTiO
  • Ceramics
  • Complex perovskite
  • Ferroelectrics
  • Relaxors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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