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Studies from G. Zhou et al in the Area of Carbon Research Described (Nano structural analysis on stiffening phenomena of PAN-based carbon fibers...

August 1, 2014



Studies from G. Zhou et al in the Area of Carbon Research Described (Nano structural analysis on stiffening phenomena of PAN-based carbon fibers during tensile deformation)

By a News Reporter-Staff News Editor at Science Letter -- Investigators discuss new findings in Carbon Research. According to news reporting originating in Shenyang, People's Republic of China, by NewsRx journalists, research stated, "The effects of inner microstructures, including crystallite size, orientation and defects on the stiffening phenomena of PAN-based T300 carbon fibers under tension were explored. Single-fiber tensile test was conducted on three types of fiber: as received, 1400 and 1600 C heat treated."

The news reporters obtained a quote from the research, "The distribution of crystallite orientation in a fiber from core to skin was obtained by using transmission electron microscopy. The observations indicate the load-transfer between crystallites depends on the crystallite entanglement. The slide-lock of the entangled junctions among the loosely compacted crystallites is responsible for the increasing elastic modulus during tension."

According to the news reporters, the research concluded: "The sharp drop of tensile strength (-36%) of the fiber after heat treated at 1600 degrees C was attributed to the increasing of crystallite size, nanopore defects and a higher misalignment of crystallites in the core region."

For more information on this research see: Nano structural analysis on stiffening phenomena of PAN-based carbon fibers during tensile deformation. Carbon, 2014;76():232-239. Carbon can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; Carbon - www.elsevier.com/wps/product/cws_home/258)

Our news correspondents report that additional information may be obtained by contacting G. Zhou, Inst Met Sci & Technol, Shenyang 110016, People's Republic of China. Additional authors for this research include J.H. Byun, S.B. Lee, J.W. Yi, W. Lee, S.K. Lee, B.S. Kim, J.K. Park, S.G. Lee and L.L. He (see also Carbon Research).

Keywords for this news article include: Shenyang, People's Republic of China, Asia, Carbon Research

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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