Abstract
A Mössbauer investigation has been made of the temperature dependence of cation diffusion in magnetitie, Fe3-δO4. In the temperature range 1100 to 1400°C, spectral line shapes are influenced characteristically by cation diffusion processes. At high oxygen partial pressures,Po2, the in-situ spectra give clear evidence of rapid migration of cations on octahedral sites by a vacancy mechanism, while interstitial processes involving the tetrahedrally coordinated iron ions dominate at lowPo2.
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Becker, K.D., v. Wurmb, V. & Litterst, F.J. Mössbauer study of high-temperature diffusion in magnetite. Hyperfine Interact 56, 1431–1435 (1990). https://doi.org/10.1007/BF02405453
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DOI: https://doi.org/10.1007/BF02405453