Study of the sintering and oxidation behavior to the HfB2/SiC system. Synthesis, reactivity and chemical-physical characterization.

Cassandre Piriou (1) , Olivier Rapaud (1) , Ludovic Charpentier (2) , Sylvie Foucaud (1)

1 SPCTS - Science des Procédés Céramiques et de Traitements de Surface
2 PROMES - Procédés, Matériaux et Energie Solaire

The first aim of our work consists in synthesizing Ultra High Temperature HfB2/SiC ceramics, used as structural materials in aeronautic and aerospace areas, by Spark Plasma Sintering (SPS). This process is used to obtain fully dense materials (>99% relative density) with fine grains, at lower sintering temperature and shorter dwell time than conventional techniques. Sintered materials are then oxidized in a solar furnace and characterized in order to better understand the oxidation mechanisms.

Domaines: Chimie; Matériaux; Chimie; Chimie théorique et/ou physique; Sciences de l'ingénieur [physics]; Matériaux

Cassandre Piriou, Olivier Rapaud, Ludovic Charpentier, Sylvie Foucaud. Study of the sintering and oxidation behavior to the HfB2/SiC system. Synthesis, reactivity and chemical-physical characterization.. 7th International Workshop on Advanced Ceramics, Sep 2016, Limoges, France. ⟨10.13140/RG.2.2.18838.34885⟩. ⟨hal-01375962⟩