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SiO2 나노 콜로이드 첨가량에 따른 질화규소의 트라이볼러지

Tribology of Si3N4 Ceramics Depending on Amount of Added SiO2 Nanocolloid

  • 남기우 (부경대학교 신소재공학부) ;
  • 정영규 (부경대학교 학연협동기계공학과) ;
  • 황석환 (부경대학교 학연협동기계공학과) ;
  • 김종순 ((주)엔지텍) ;
  • 문창권 (부경대학교 신소재공학부)
  • Nam, Ki-Woo (Dept. of Materials Science and Engineering, Pukyong Nat'l Univ.) ;
  • Chung, Young-Kyu (Dept. of UR Interdisciplinary program of Mechanical Engineering, Graduate School, Pukyong Nat'l Univ.) ;
  • Hwang, Seok-Hwan (Dept. of UR Interdisciplinary program of Mechanical Engineering, Graduate School, Pukyong Nat'l Univ.) ;
  • Kim, Jong-Soon (NGE Tech Co. Ltd.) ;
  • Moon, Chang-Kwon (Dept. of Materials Science and Engineering, Pukyong Nat'l Univ.)
  • 투고 : 2010.09.24
  • 심사 : 2011.01.13
  • 발행 : 2011.03.01

초록

본 연구는 $SiO_2$ 나노 콜로이드 첨가량에 따르는 $Si_3N_4$ 세라믹스의 마멸 특성을 평가하였다. 시험 편은 35 MPa, 2123 K의 질소 가스 분위기 1시간동안 소결하였다. 마멸 시험은 링 블록 시험기를 사용 하였으며, 시험 조건은 직경 35 mm인 링의 회전속도50 rpm, 하중 9.8 N, 실험중의 대기 온도 293 K이 었다. 세라믹스의 마멸계수는 약 1.0, 마멸손실은 약 0.02 mm이었다. 본 연구에 사용된 시험편 중에서 1.3 wt% $SiO_2$ 나노 콜로이드가 첨가된 시험편은 가장 낮은 마멸계수와 마멸 손실을 나타내어, 최상의 마멸 저항성을 나타내었다. 이것은 가장 높은 비커스 경도와 굽힘 강도를 나타내었다. 마멸계수는 경도 와 굽힘 강도에 역비례 관계를 보였다.

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피인용 문헌

  1. Nano-Colloid vol.38, pp.10, 2014, https://doi.org/10.3795/KSME-A.2014.38.10.1117
  2. Corrosion Resistance Characteristics of Cr-free Coating Solution for Degraded STS316L vol.29, pp.6, 2015, https://doi.org/10.5574/KSOE.2015.29.6.475