Oxygen diffusion along symmetric [0001] tilt grain boundaries in α-alumina

Tsubasa Nakagawa, Isao Sakaguchi, Katsuyuki Matsunaga, Takahisa Yamamoto, Hajime Haneda, Yuichi Ikuhara

研究成果: Article査読

2 被引用数 (Scopus)

抄録

Grain boundary diffusion coefficients of oxygen (δDgb) at 1793K in high purity α-alumina bicrystals with Σ7{2 3̄ 10}/[0001] and Σ31{7 11̄ 40}/[0001] symmetric tilt grain boundaries were measured by means of the isotopic exchange and diffusion depth profiling using SIMS. δDgb, of both grain boundaries were determined to be 7.1×10-24 [m3/sec] for Σ7 grain boundary and 5.3×10-24 [m3/sec] for Σ31 grain boundary, respectively. These results indicate that Σ values do not directly relate to grain boundary diffusion properties.

本文言語English
ページ(範囲)415-418
ページ数4
ジャーナルKey Engineering Materials
317-318
DOI
出版ステータスPublished - 2006
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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