Simultaneous high-frequency induction heated combustion synthesis and consolidation of nanostructured HfSi@d2-SiC composite

• Published in: Ceramics international Vol. 35; no. 4; pp. 1677 - 1681
• Main Authors: Park, J H, Yoon, J K, Doh, J M, Lee, B S, Shon, I J
• Format: Journal Article
• Language: English
• Published: 01.05.2009
• ISSN: 0272-8842
• DOI: 10.1016/j.ceramint.2008.08.007

Dense nanostructured HfSi@d2-SiC composite was synthesized by high-frequency induction heated combustion synthesis (HFIHCS) method in one step from powders of mechanically activated HfC and Si. Simultaneous combustion synthesis and densification were accomplished under the combined effects of an induced current and mechanical pressure. Highly dense HfSi@d2-SiC was produced under simultaneous application of a 60MPa pressure and the induced current. The average grain size and mechanical properties (hardness and fracture toughness) of the composite were investigated.