MECHANISMS OF INITIAL SINTERING OF A FINE ALUMINA POWDER
Résumé
The mechanism of initial sintering of alumina was explored by electron microscopy and X-ray diffraction. The transformation of gamma to alpha alumina influenced sintering behavior. This transformation appears to involve plastic deformation in the alumina. Sintering of fine alpha alumina powder directly occurs with an activation energy close to that of grain boundary diffusion of oxygen.
Domaines
Articles anciensOrigine | Accord explicite pour ce dépôt |
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