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The Korean journal of ceramics v.3 no.1, 1997년, pp.47 - 51  

Tribological Behaviour of the Si/SiC and the Si/SiC/Graphite Composites

Kim, In-Sub  
  • 초록

    The dense sintered bodies of Si/SiC composite with various Si contents could be fabricated by changing the green density in the forming process. The Si/SiC/graphite composites with various graphite contents could be also fabricated by changing a graphite content in the starting composition. Their mechanical and tribological properties were characterized and wear mechanism was also studided. The hardness and strength of the Si/SiC and the Si/SiC/graphite were decreased with increasing the contents of free Si and graphite, respectively. However, the friction coefficient and specific wear rate had no specific relations to their hardness and strength. Adhesion of free Si was a main factor to determine a wear resistance of the Si/SiC composite. In the case of the Si/SiC/graphite, solid lubricationl and liquid reservoir of the graphite particles played the main role of the reduction of the friction force. In the torque test to estimate the possibility of practical of practical applications, the value of torque between the Al2O3 disk and Si/SiC/graphite disk was 1/6 lower compared with two $Al_2O_3$ disks on the basis of 100,000 cycles.


  • 주제어

    Si/SiC composite .   Si/SiC/graphite composite .   Tribological property .   Friction .   Wear .   Lubrication.  

  • 참고문헌 (14)

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  • 신동우 (22)

    1. 1996 "세라믹 섬유 복합체의 제조 및 물성 향상" 한국결정성장학회지 = Journal of the Korean crystal growth and crystal technology 6 (2): 203~212    
    2. 1996 "Phase Distribution and Interface Chemistry by Solid State SiC/Ni Reaction" The Korean journal of ceramics 2 (1): 19~24    
    3. 1997 "층상 및 섬유상 $Al_2O_3$ 거시복합체의 파괴거동" 요업학회지 = Journal of the Korean Ceramic Society 34 (7): 758~766    
    4. 1997 "$WS_2$ 고체 윤활제의 합성" 윤활학회지 = Journal of the Korean Society of Tribologists and Lubrication Engineers 13 (4): 60~65    
    5. 1998 "상압소결 ZTA의 분말 성형 공정 최적화" 한국결정성장학회지 = Journal of the Korean crystal growth and crystal technology 8 (2): 356~364    
    6. 1998 "$WS_2$ 고체윤활제의 마찰.마모 거동" 윤활학회지 = Journal of the Korean Society of Tribologists and Lubrication Engineers 14 (2): 35~41    
    7. 1999 "탄소섬유/Si/SiC 및 탄소섬유/탄소/SiC 복합재의 기계적 물성" 복합재료 : 한국복합재료학회지 = Journal of the Korean Society for Composite Materials 12 (3): 8~16    
    8. 1999 "$WS_2$고체윤활제의 합성 및 구름베어링 적용" 윤활학회지 = Journal of the Korean Society of Tribologists and Lubrication Engineers 15 (1): 77~82    
    9. 1999 "질화규소 세라믹볼의 구름피로수명" 윤활학회지 = Journal of the Korean Society of Tribologists and Lubrication Engineers 15 (2): 150~155    
    10. 1999 "WS2 고체윤활제 개발 및 상품화" 세라미스트 = Ceramist 2 (5): 43~46    

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