# 슬래그 입자의 크기 및 체적비에 따른 슬래그 입자강화 복합재료의 기계적 특성 연구

• 남지훈 (연세대학교 기계공학과 기계공학 전공 대학원) ;
• 전흥재 (연세대학교 기계공학과) ;
• 홍익표 (공주대학교 전자공학과)
• Accepted : 2013.08.14
• Published : 2013.09.01

#### Abstract

This study demonstrated that a slag, an industrial solid waste, can be used as a structural reinforcement. The mechanical properties(tensile strength and Elastic modulus) of slag reinforced composite(SRC) was investigated as functions of slag particle size (8~12 ${\mu}m$ and 12~16 ${\mu}m$) and volume fraction (0-40 vol.%). In order to investigate the interface and a degree of particle dispersion which have an effect on mechanical properties, optical microscopic images were taken. The results of tensile tests showed that the tensile strength decreased with an increase in slag volume fraction and particle size. The elastic modulus increased with an increase in slag volume fraction and particle size except for 30 vol.% SRC. The tensile strength decreased with an increase in slag particle size. The microscopic picture showed SRC has fine degree of particle dispersion at low slag volume fraction. SRC has a good interface at every volume fraction. However particle cluster was incorporated with an increase in slag volume fraction.

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