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Oxygen and aluminum diffusion in α-Al2O3

Oxygen and aluminum diffusion in α-Al2O3: How much do we really understand?

✍ A.H. Heuer 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 655 KB

The major diffusion processes in ␣-Al 2 O 3 have been reviewed, including oxygen and aluminum lattice diffusion, D oxy and D Al , respectively; oxygen grain boundary diffusion, D b-oxy ; and pipe diffusion, D p . Their relevance to creep of Al 2 O 3 and oxidation of Al 2 O 3 scale-forming alloys is