Master sintering curve with dissimilar grain growth trajectories: A case study on MgAl2O4

Gabriel Kerbart (1) , Charles Manière (1) , Christelle Harnois (1) , Sylvain Marinel (1)

1 CRISMAT - Laboratoire de cristallographie et sciences des matériaux

Sintering is a key step in the processing of high performance ceramics. Both the density and the grain size play a crucial role on the ceramic sintering kinetics and the final material properties. The master sintering curve (MSC) is a well-known tool for exploring sintering models kinetics. However, the conventional MSC theory assumes a unique sintering trajectory, while our study on MgAl2O4 spinel shows dissimilar growth response. Park’s MSC theory has been applied and compared with the conventional MSC approach for obtaining the activation energy with and without dissimilar grain growth trajectories.

Keywords: Master sintering curve; Grain growth; Transparent ceramics; MgAl2O4; Modeling; Sintering; Master Sintering Curve; Transparent Ceramics; MgAl 2 O 4

Domains: Chemical Sciences; Material chemistry; Engineering Sciences [physics]; Mechanics [physics.med-ph]; Mechanics of materials [physics.class-ph]; Engineering Sciences [physics]; Chemical and Process Engineering

Gabriel Kerbart, Charles Manière, Christelle Harnois, Sylvain Marinel. Master sintering curve with dissimilar grain growth trajectories: A case study on MgAl2O4. Journal of the European Ceramic Society, 2021, 41 (1), pp.1048-1051. ⟨10.1016/j.jeurceramsoc.2020.09.003⟩. ⟨hal-03011580⟩