DOI QR코드

DOI QR Code

고주파유도가열 연소합성에 의한 치밀한 WSi2-20vol.%SiC 복합재료 제조 및 기계적 특성

Fabrication and Mechanical Properties of Dense WSi2-20vol.%SiC Composite by High-Frequency Induction-Heated Combustion Synthesis

  • 오동영 (전북대학교 공과대학 신소재공학부, 공학연구원 공업기술연구센터) ;
  • 김환철 (전북대학교 공과대학 신소재공학부, 공학연구원 공업기술연구센터) ;
  • 이상권 ((주)엘텍) ;
  • 손인진 (전북대학교 공과대학 신소재공학부, 공학연구원 공업기술연구센터)
  • Oh, Dong-Young (Department of Advanced Materials Engineering, Research Center of Industrial Technology, Chonbuk National University) ;
  • Kim, Hwan-Cheol (Department of Advanced Materials Engineering, Research Center of Industrial Technology, Chonbuk National University) ;
  • Lee, Sang-Kwon (Eltek. Ltd) ;
  • Shon, In-Jin (Department of Advanced Materials Engineering, Research Center of Industrial Technology, Chonbuk National University)
  • 발행 : 2005.02.01

초록

Dense $WSi_2$-20vol.%SiC composite was synthesized by high-frequency induction-heated combustion synthesis(HFIHCS) method within 2 minutes in one step from elemental powder mixture of W, Si and C. Simultaneous combustion synthesis and densification were accomplished under the combined effects of an induced current and mechanical pressure. Highly dense $WSi_2$-20vol.%SiC with relative density of up to 97% was produced under simultaneous application of 60MPa pressure and the induced current. The average grain size of $WSi_2$ was about $5.2{\mu}m$. The hardness and fracture toughness values obtained were 1700kg/$mm^2$ and $4.4MPa{\cdot}m^{1/2}$, respectively.

키워드

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