Affiliation:
1. National Institute for Materials Science
2. Kyushu University
3. National Institute for Materials Science (NIMS)
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.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference7 articles.
1. Y. Teraoka, H.M. Zhang, S. Furukawa and N. Yamazoe: Chem. Lett., Vol. 3 (1985), p.1743.
2. K. Zhang, R. Ran, L. Ge, Z. Shao, W. Jin and N. Xu: J. Membr. Sci., Vol. 323 (2008), p.436.
3. K. Watanabe, D. Takauchi, M. Yuasa, T. Kida, K. Shimanoe, Y. Teraoka and N. Yamazoe, J. Electrochem. Soc., Vol. 156 (2009), p.81.
4. T. Kida, D. Takauchi, K. Watanabe, M. Yuasa, Y. Teraoka, N. Yamazoe and K. Shimanoe, J. Electrochem. Soc., Vol. 156 (2009), p.187.
5. K. Watanabe, S. Ninomiya, M. Yuasa, T. Kida, N. Yamazoe, H. Haneda and K. Shimanoe, J. Am. Ceram. Soc., Vol. 93 (2010), p. (2012).
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献