Effect of annealing atmosphere on oxygen diffusion through Ba-Fe-based perovskite oxide

Ken Watanabe, Tetsuya Kida, Isao Sakaguchi, Naoki Ohashi, Kengo Shimanoe, Hajime Haneda

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

1 Citation (Scopus)

Abstract

To determine the effect of the annealing atmosphere on oxygen diffusion through Ba0.95La0.05FeO3-δ pellets, 18O2 tracer diffusion and high-resolution secondary ion mapping were performed. When annealing in air, the 18O concentration around the surface up to a depth of 40 μm was almost constant. On the other hand, when annealing in vacuum, the 18O concentration obviously decreased. High-resolution secondary ion mapping indicated that the 18O concentration around the grain boundary was reduced. These results suggested that the grain boundary of BLF annealed in vacuum prevents oxygen diffusion.

Original languageEnglish
Title of host publicationElectroceramics in Japan XIV
PublisherTrans Tech Publications Ltd
Pages141-144
Number of pages4
ISBN (Print)9783037851821
DOIs
Publication statusPublished - 2011

Publication series

NameKey Engineering Materials
Volume485
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

All Science Journal Classification (ASJC) codes

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

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