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Article Dans Une Revue Journal of the European Ceramic Society Année : 2022

Effect of low content sintering aids addition on β-SiC sintered by spark plasma sintering

Résumé

The influence of low content of sintering aids addition on the properties of beta-SiC sintered by spark plasma sintering was studied based on X-ray diffraction and SEM observations. Three dopants, respectively Al2O3, Al2O3- Y2O3 and Al2O3-AlN were chosen, and the investigation was undertaken in the [0.5-5 wt%] content range. The analyses revealed the possibility to increase the density of sintered pellets close to 100% of theoretical density (T. D.), even with the addition of very low sintering aids contents, as low as 0.5 wt%, for each dopant. The combination with high sintering pressure allowed keeping a fine microstructure and a pristine cubic crystalline structure while avoiding the formation of secondary phases.

Domaines

Chimie
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Dates et versions

hal-03783645 , version 1 (22-09-2022)

Identifiants

Citer

Florimond Delobel, J Cambedouzou, Florence Moitrier, Sébastien Lemonnier. Effect of low content sintering aids addition on β-SiC sintered by spark plasma sintering. Journal of the European Ceramic Society, 2022, 42 (6), pp.2609-2617. ⟨10.1016/j.jeurceramsoc.2022.01.037⟩. ⟨hal-03783645⟩
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