Oxygen tracer diffusion in BaTiO3 ceramics - Effect of Zr impurity from planetary ball milling

K. Watanabe, I. Sakaguchi, S. Hishita, H. Haneda, N. Ohashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We investigated the effect of Zr impurities on the oxygen diffusion pathway in BaTiO3 ceramics by using an ion-imaging technique. Zr impurities were introduced into BaTiO3 ceramics by a planetary ball milling process. The oxygen tracer diffused quickly from the surface up to the grain boundary and then appeared as discontinuous steps at the grain boundary. The results indicate that the grain boundary acted as a blocking layer against oxygen diffusion. The blocking for oxygen diffusion at the grain boundary is thought to originate during the formation and distribution of complex defects between the charged oxygen vacancies and the Ba vacancies near the grain boundary.

Original languageEnglish
Title of host publicationElectroceramics in Japan XV
PublisherTrans Tech Publications Ltd
Pages262-265
Number of pages4
ISBN (Print)9783037857618
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event31st Electronics Division Meeting of the Ceramic Society of Japan - Tokyo, Japan
Duration: Oct 28 2011Oct 29 2011

Publication series

NameKey Engineering Materials
Volume566
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Other

Other31st Electronics Division Meeting of the Ceramic Society of Japan
CountryJapan
CityTokyo
Period10/28/1110/29/11

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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