• Title/Summary/Keyword: advanced materials

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Current Status and Future of Advanced Composite Materials for Civil Infrastructures (복합소재 구조물의 현황과 전망)

  • 이성우
    • Proceedings of the Korean Geotechical Society Conference
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    • 2001.10b
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    • pp.1-18
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    • 2001

  • Recently advanced composite materials have been successfully used in the civil infrastructure application due to its many advantages such as light weight, high strength, corrosion resistance. Demand for longer service life, increased durability and reduced maintenance have prompted such developments. In this article, characteristics of composite materials, fabrication process, case studies for various field and future of advanced composite materials for civil infrastructures is presented.

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Microstructure and Mechanical Properties of Nano-sized Ti-35%Nb-7%Zr-10%CPP Composite Fabricated by Pulse Current Activated Sintering (통전가압활성소결을 이용한 나노 결정립 Ti-35%Nb-7%Zr-10%CPP 복합재료의 미세조직 및 기계적 특성)

  • Woo, Kee-Do;Kang, Duck-Soo;Kim, Sang-Hyuk;Park, Sang-Hoon;Kim, Ji-Young;Ko, Hye-Rim
    • Journal of Powder Materials
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    • v.18 no.2
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    • pp.188-195
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    • 2011

  • The aim of this study was to investigate microstructures and mechanical properties of nano-sized Ti-35 wt.%Nb-7 wt.%Zr-10 wt.%CPP composite fabricated by high energy mechanical milling (HEMM) and pulse current activated sintering (PCAS). Grain growth of the mechanically milled powder was prevented by performing PCAS. The principal advantages of calcium phosphate materials include: similarity in composition to the bone mineral, bioactivity, osteoconductivity and ability to form a uniquely strong interface with bone. The hardness and wear resistance property of nano-sized Ti-35 wt.%Nb-7 wt.%Zr-10 wt.%CPP composites increased with increasing milling time because of decreased grain-size of sintered composites.

  • https://doi.org/10.4150/KPMI.2011.18.2.188 인용 PDF KSCI

Effects of PE (Polyethylene) and GF (Glass Fiber) Addition on Tensile Strength and Elongation of ABS (Acrylonitrile Butadiene Styrene) Recovered from Waste LCDs (폐(廢)LCD에서 회수(回收)된 ABS(Acrylonitrile Butadiene Styrene)의 인장강도(引張强度)와 연신율(延伸率)에 미치는 PE(Polyethylene)와 유리섬유(纖維)(Glass Fiber) 첨가효과(添加效果))

  • Lee, Sungkyu;Cho, Sung-Su;Lee, Soo-Young;Park, Jae Layng;Hong, Myung Hwan;Hong, Hyun Seon
    • Resources Recycling
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    • v.22 no.3
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    • pp.50-56
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    • 2013

  • Recycled plastic composites of ABS/PE (50/50 and 20/80) and ABS/GF (90/10) were fabricated from plastic components of waste LCDs and effects of PE composition on elongation of ABS/PE composites were investigated. Increased PE contents improved elongation of the composite from 2.4% to 13%, which was attributed to increased crystalline behavior of the ABS/PE composite afforded by ductile PE fraction: SEM fractographs showed some sign of plastic deformation of PE matrix before ductile fracture of the composites.

  • https://doi.org/10.7844/kirr.2013.22.3.50 인용 PDF KSCI