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Comment on Self-diffusion in high-purity α-Al2O3: Comparison of Ti-doped, Mg-doped and undoped single crystals P. Fielitz, S. Ganschow, K. Klemens, and G. Borchardt, J. Eur. Ceram. Soc., 41, (2021), 663-668

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY (2022)

Self-diffusion in high-purity alpha-Al2O3: Comparison of Ti-doped, Mg-doped and undoped single crystals

Peter Fielitz et al.

Summary: This study is based on high-purity single crystal α-alumina to control key material parameters. The impact of Mg or Ti doping on oxygen diffusion is unclear, possibly due to similar calculated energies. Al self-diffusion is faster than oxygen diffusion, and Mg doping significantly reduces Al diffusivity in α-alumina.

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY (2021)

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Article Materials Science, Multidisciplinary