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Influence of Grain Growth Inhibitors and Co in Nano WC Materials

나노 텅스텐 카바이드 재료 내 입성장 억제제와 코발트의 영향

  • Lim, Hyung Sup (School of Advanced Materials Science & Engineering, Sungkyunkwan University) ;
  • Hur, Man Gyu (School of Interdisciplinary Program in Photovoltaic System Engineering, Sungkyunkwan University) ;
  • Kim, Deug Joong (School of Advanced Materials Science & Engineering, Sungkyunkwan University) ;
  • Yoon, Dae Ho (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
  • 임형섭 (성균관대학교 신소재공학과) ;
  • 허만규 (성균관대학교 태양광시스템협동과정) ;
  • 김득중 (성균관대학교 신소재공학과) ;
  • 윤대호 (성균관대학교 신소재공학과)
  • Received : 2014.08.29
  • Accepted : 2014.09.16
  • Published : 2014.09.30

Abstract

Influences of Co and inhibitors from nano-sized WC materials were observed in the sintering process. VC and $Cr_3C_2$ were used as inhibitors. The crystal structure and surface images of sintered nano-sized WC materials, as functions of Co and inhibitors, were evaluated by XRD and FE-SEM analyses. The relative densities of sintered nano-sized WC materials did not change even with increased quantity of Co and increased temperature. The density of sintered nano-sized WC materials with inhibitors was lower than that of sintered nano-sized WC materials without inhibitors. No difference in hardness due to change of inhibitors was found.

Keywords

Acknowledgement

Supported by : 한국에너지기술평가원(KETEP)

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