Skip to Main content Skip to Navigation
Journal articles

Properties of reinforced boron carbide laminar composites

Abstract : The reinforcement by crack deflection in boron carbide laminar composites is obtained by both controlling macrostructure and microstructure. This structure had never been studied before in boron carbide materials. Composites were prepared using tape-casting technique. Different composites with either porous interlayers obtained by pore forming agent, or weak interlayers obtained without adding sintering aid, or weak interlayers obtained by a mixture of boron carbide and boron nitride, or weak graphite or boron nitride interfaces have been elaborated and characterized. Reinforcement by crack deflection was observed in most of these composites. In comparison to the work of rupture of the dense material, i.e. 23.09 kJ.m−3, the following values were obtained for the laminar composites: 38 kJ.m−3 for composites with interlayers with corn starch (55 vol.%), 40 kJ.m−3 for composites with B4C-BN interlayers, 30 kJ.m−3 for composites with weak interlayers in BN and 39 kJ.m−3 for composites with weak interlayers in graphite.
Document type :
Journal articles
Complete list of metadatas

https://hal-emse.ccsd.cnrs.fr/emse-00505747
Contributor : Pierre Charles Pinoli <>
Submitted on : Monday, July 26, 2010 - 9:36:31 AM
Last modification on : Wednesday, August 5, 2020 - 3:42:06 AM

Identifiers

Citation

Sandrine Tariolle, François Thévenot, Thierry Chartier, J.L. Besson. Properties of reinforced boron carbide laminar composites. Journal of the European Ceramic Society, Elsevier, 2005, 25 (16), pp.3639-3647. ⟨10.1016/j.jeurceramsoc.2004.09.014⟩. ⟨emse-00505747⟩

Share

Metrics

Record views

256