Articles
  • Simultaneous synthesis and consolidation of a nanocrystalline TiSi2-SiC composite by pulsed current activated combustion 
  • In-Yong Koa, Jeong-Hwan Parka,b, Hyun-Kuk Parka and In-Jin Shona,b*
  • a Division of Advanced Materials Engineering, the Research Center of Advanced Materials Development, Chonbuk National University, 664-14 Deokjin-dong 1-ga, Deokjin-gu, Jeonju, Jeonbuk 561-756, Republic of Korea b Department of Hydrogen and Fuel Cells Engineering, Specialized Graduate School, Chonbuk National University, 664-14 Deokjin-dong 1-ga, Deokjin-gu, Jeonju, Jeonbuk 561-756, Republic of Korea
Abstract
A dense nanophase TiSi2-SiC composite was synthesized by a pulsed current activated combustion synthesis method within 2 minutes in one step from mechanically activated powders of TiC and Si. Simultaneous combustion synthesis and consolidation were accomplished under the combined effects of a pulsed current and mechanical pressure. Highly dense TiSi2-SiC with relative density of up to 97% was produced under simultaneous application of a 60 MPa pressure and the pulsed current. The average grain size and mechanical properties of the composite were investigated.

Keywords: Pulsed current activated combustion; Composite materials; Nanophase; Mechanical properties; TiSi2-SiC

This Article

  • 2010; 11(2): 215-220

    Published on Apr 30, 2010