Influence of the yttria powder morphology on its densification ability
Language
en
Article de revue
This item was published in
Journal of the European Ceramic Society. 2005, vol. 25, n° 12, p. 2097-2103
Elsevier
English Abstract
The present paper shows that we can predict the densification capacity of an yttria powder in relation with its grain shape by using a simple thermodynamic model. All other parameters, such as temperature, time, sintering ...Read more >
The present paper shows that we can predict the densification capacity of an yttria powder in relation with its grain shape by using a simple thermodynamic model. All other parameters, such as temperature, time, sintering atmosphere and nature of the powder are fixed. The values of the relative density and grain size of the final ceramic strongly depend on the shape of the grain of the initial powder. A simple model is proposed to understand these differences and to give tools to predict, step by step the densification capacity of a powder. This study could be extended to powders of different nature.Read less <
English Keywords
Grain growth
Sintering
Grain size
Rare earth oxides
Origin
Hal imported