Paper Title:
Oxygen Uptake and Diffusion in Mayenite
  Abstract

Oxygen uptake and oxygen diffusion in Mayenite (Ca12Al14O33) were investigated using the stable tracer 18O2. Mayenite contains one intrinsic, highly mobile oxygen anion. It was shown that for high temperatures (above 700 °C), the diffusion goes through a interstitialcy mechanism, where the interstitial oxygen anion knocks out a lattice oxygen anion. The activation enthalpy for this process is around 0.9 eV, suggesting that the ionic migration is very fast.

  Info
Periodical
Defect and Diffusion Forum (Volumes 289-292)
Edited by
A. Agüero, J.M. Albella, M.P. Hierro, J. Phillibert and F.J. Pérez Trujillo
Pages
511-516
DOI
10.4028/www.scientific.net/DDF.289-292.511
Citation
M. Kilo, S. Swaroop, M. Lerch, "Oxygen Uptake and Diffusion in Mayenite", Defect and Diffusion Forum, Vols. 289-292, pp. 511-516, 2009
Online since
April 2009
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Price
$32.00
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