Paper Title:
Effect of Annealing Atmosphere on Oxygen Diffusion through Ba-Fe-Based Perovskite Oxide
  Abstract

To determine the effect of the annealing atmosphere on oxygen diffusion through Ba0.95La0.05FeO3-d 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.

  Info
Periodical
Edited by
Chazono Hirokazu, Fujihara Shinobu, Katayama Keiichi, Masumoto Hiroshi, Mizoguchi Teruyasu, Osada Minoru, Shinozaki Kazuo and Takeda Hiroaki
Pages
141-144
DOI
10.4028/www.scientific.net/KEM.485.141
Citation
K. Watanabe, T. Kida, I. Sakaguchi, N. Ohashi, K. Shimanoe, H. Haneda, "Effect of Annealing Atmosphere on Oxygen Diffusion through Ba-Fe-Based Perovskite Oxide", Key Engineering Materials, Vol. 485, pp. 141-144, 2011
Online since
July 2011
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$32.00
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