Dynamics of the Cation Mixing of MgAl2O4 and ZnAl2O4 Spinel

@inproceedings{Kashii1999DynamicsOT,
  title={Dynamics of the Cation Mixing of MgAl2O4 and ZnAl2O4 Spinel},
  author={Naohito Kashii and Hideki Maekawa and Yukio Hinatsu},
  year={1999}
}
The kinetics of the site exchange reaction of Al 3+ cations between tetrahedral and octahedral sites in MgAl 2 O 4 and ZnAl 2 O 4 spinel in natural and synthetic powdered samples was determined by 27 Al MAS-NMR spectroscopy with a high-speed magic-angle-spinning probe using samples heat-treated for different time periods. Three site fittings to the 27 Al NMR spectra, one tetrahedral site [4] Al and two octahedral sites ( [6] Al(1) and [6] Al(2)), reasonably reproduced the observed spectra… CONTINUE READING