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Sintering mechanisms of 0.99 SnO2-0.01 CuO mixtures |
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| Authors: | N Dolet J M Heintz L Rabardel M Onillon J P Bonnet |
| Affiliation: | (1) Laboratoire de Chimie du Solide du CNRS, 351, Cours de la Libération, 33405 Talence Cedex, France;(2) Present address: Laboratoire des Matériaux Céramiques et Traitements de Surface, ENSCI, 47 Av. Albert Thomas, 87065 Limoges Cedex, France |
| Abstract: | The densification kinetics of 0.99 SnO2-0.01 CuO molar mixtures have been studied between 850 and 1150 °C. Both experimental analyses and theoretical modelling show the role of a liquid phase for sintering temperatures T
s  940 °C: sintering is controlled by a liquid phase after a fast shrinkage due to grain rearrangement. The analytical formulation of the shrinkage behaviour suggests that dissolution at the solid-liquid interface is the limiting process when T
s  1000 °C and diffusion is the limiting step at higher temperatures. |
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