Apparent Activation Energy for the Densification of a Commercially Available Granulated Zirconia Powder
Sintering in air of a commercially available granulated zirconia powder has been investigated using vertical dilatometer tests. Using several heating rates and the formalism of the constant rate of heating method, it has been possible to determine the apparent activation energy for the mechanism controlling densification, for different values of the relative density. It is shown that the apparent activation energy does not have a single value but depends directly on the relative density.
No Supplementary Data
No Article Media
Document Type: Research Article
Affiliations: Laboratoire de Synthèse et Fonctionnalisation des Céramiques, FRE 2770 CNRS/Saint-Gobain, Saint-Gobain C.R.E.E., 84306 Cavaillon Cedex, France
Publication date: April 1, 2007