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Characteristics on Boundary Layer and Formation Mechanism of c-BN Thin Films During Electron Assisted Hot Filament CVD Process

EAHFCVD법에 의한 c-BN 박막형성기구와 계면층의 특성에 관하여

  • 최용 (단국대 공대 신소재공학과) ;
  • 최진일 (단국대 공대 신소재공학과)
  • Received : 2011.09.15
  • Accepted : 2011.11.22
  • Published : 2012.01.01

Abstract

c-BN films were deposited on SKH-51 steels by electron assisted hot filament CVD method and microstructure development was studied processing parameters such as bias voltage, temperature, etching and phase transformation at boundary layer between BN compound and steel to develop a high performance wear resistance tools. A negative bias voltage higher than 200V at substrate temperature of $800^{\circ}C$ and gas pressure of 20 torr in B2H6-NH3-H2 gas system was one of optimum conditions to produce c-BN films on the SKH-51 steels. Thin layer of hexagonal boron nitride phase was observed at the interface between c-BN layer and substrate.

Keywords

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