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논문 기본 정보

자료유형
동향자료
저자정보
Cho, Dong-Hwan (Department of Polymer Science and Engineering, Kumoh National Institute of Technology) Yoon, Sung-Bong (KyungDong Ceratech Co.) Cho, Chae-Wook (DACC Co., Ltd.) Park, Jong-Kyoo (Composite Laboratory, Agency for Defense Development)
저널정보
한국탄소학회 Carbon letters Carbon letters 제12권 제4호
발행연도
2011.1
수록면
223 - 228 (6page)

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초록· 키워드

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In this present work, the effect of additional heat-treatment (AHT) in the range from $1800^{\circ}C$ to $2400^{\circ}C$ on the chemical composition, morphology, microstructure, tensile properties, electrical resistivity, and thermal stability of commercial polyacrylonitrile (PAN)-based carbon fibers was explored by means of elemental analysis, electron microscopy, X-ray diffraction analysis, single fiber tensile testing, two-probe electrical resistivity testing, and thermogravimetric analysis (TGA). The characterization results were in agreement with each other. The results clearly demonstrated that AHTs up to $2400^{\circ}C$ played a significant role in further contributing not only to the enhancement of carbon content, fiber morphology, and tensile modulus, but also to the reduction of fiber diameter, inter-graphene layer distance, and electrical resistivity of "as-received" carbon fibers without AHT. The present study suggests that key properties of commercial PAN-based carbon fibers of an intermediate grade can be further improved by proprietarily adding heat-treatment without applying tension in a batch process.

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