Paper Title:
Influence of Co-Doping on the Sintering Map of an Ultra Fine and Ultra Pure Alpha Alumina Powder
  Abstract

The sintering map of an ultra fine and ultra pure α-alumina powder, doped with MO and DO2 (M for mono-valence cations, D for bi-valence cations), has been built from isothermal sintering experiments. It has been compared with the one obtained in a previous study with the same un-doped α-alumina raw powder. It seems that a transient liquid phase appears above a critical temperature in the co-doped material during sintering. It is proposed that this transient liquid phase is promoting densification and minimizing grain growth, as confirmed by transmission electron microscopy (TEM).

  Info
Periodical
Edited by
P. VINCENZINI
Pages
55-60
DOI
10.4028/www.scientific.net/AST.45.55
Citation
G. Bernard-Granger, C. Guizard, "Influence of Co-Doping on the Sintering Map of an Ultra Fine and Ultra Pure Alpha Alumina Powder", Advances in Science and Technology, Vol. 45, pp. 55-60, 2006
Online since
October 2006
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