• Title/Summary/Keyword: 누적 마모 체적

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Friction and Wear Characteristics of Silica/Epoxy Composites for various Particle Size (입자지름의 변화에 따른 실리카 복합재료의 마찰 및 마모 특성)

  • Koh, Sung-Wi;Kim, Hyung-Jin;Kim, Kae-Dong;Kim, Chang-Soo
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2006.11a
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    • pp.141-144
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    • 2006
  • In this study, the friction and wear characteristics of pure epoxy and silica-filled epoxy resin composites with average silica particle diameter of $6-33{\mu}m$ were investigated at ambient temperature by pin-on-disc friction test. The cumulative wear volume, friction coefficient and wear rate of these materials against SiC abrasive paper were determined experimentally. The cumulative wear volume tended to increase nonlinearly with increase of sliding distance and depended on diameter of the silica particle for all these composites. The sliding wear tests of the materials demonstrated that the friction coefficient and the wear rate of silica filled epoxy composites were lower than those of the pure epoxy. silica filled epoxy.

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Effect of Counterpart Roughness on Abrasive Wear Characteristics of Side Plate of FRP Ship (FRP 선박 외판재의 연삭마모 특성에 관한 상대재 거칠기의 영향)

  • Kim, Hyung-Jin;Koh, Sung-Wi;Kim, Jae-Dong
    • Journal of Ocean Engineering and Technology
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    • v.22 no.6
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    • pp.35-40
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    • 2008
  • The effect of counterpart roughness on abrasive wear characteristics of side plate materials of FRP ship, which were composed of glass fiber and unsaturated polyester resin composites, were investigated at ambient temperature by pin-an-disc friction test. The friction coefficient, wear rate and cumulative wear volume of these materials against SiC abrasive paper were determined experimentally. The wear rate of these materials decreased rapidly with sliding distance and then maintained a constant value. It was increased as counterpart roughness was rougher in a wear test. The cumulative wear volume tended to increase nonlinearly with sliding distance and depended on applied load and sliding speed for these composites. It could be verified by SEM photograph of fracture surface that major failure mechanisms were overlapping layers, microcutting, deformation of resin, delamination, and cracking.