Hot-Drawing Process Aligns and Toughens Carbon Nanotube Fibers
نویسندگان
چکیده
منابع مشابه
Nanotube Composite Carbon Fibers
The mechanical properties of materials in small rod-shaped form are of considerable technological interest since, due to their shape and size, they can exhibit appreciably greater strength relative to corresponding macroscopic forms. For example, the mechanical strength of silicon carbide whiskers systematically increases with decreasing whisker diameter over the 100 to 1 micron range. This phe...
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The superior mechanical properties of carbon nanotubes (CNTs) mean they have been regarded as a new material with the potential to revolutionize and enable many advanced technologies. CNTs have extremely high tensile strength ( 150 GPa), high modulus ( 1 TPa), large aspect ratio, low density, good chemical and environmental stability, and high thermal and electrical conductivity. These superior...
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The superb mechanical and physical properties of individual carbon nanotubes (CNTs) provide the impetus for researchers in developing highperformance continuous fibers based upon CNTs [1]. The highest specific strength and stiffness reported for CNT fibers are, respectively, 5.3 times that of the strongest commercial fiber (T1000), and 4.3 times that of the stiffest commercial fiber (M70J) [2]....
متن کاملMultiwall Carbon Nanotube Reinforcement of Polyacrylonitrile Fibers
Aligning multiwall carbon nanotubes (MWNTs) with the direction of load is desirable for maximizing tensile reinforcement in composites. This has been accomplished by spinning composite fibers containing MWNTs[1]. The shear and elongational flow fields inherent to fiber processing cause the MWNTs to align with the fiber axis. Efficient stress transfer from the matrix to the MWNTs is also a cruci...
متن کاملMacroscopic, neat, single-walled carbon nanotube fibers.
Well-aligned macroscopic fibers composed solely of single-walled carbon nanotubes (SWNTs) were produced by conventional spinning. Fuming sulfuric acid charges SWNTs and promotes their ordering into an aligned phase of individual mobile SWNTs surrounded by acid anions. This ordered dispersion was extruded via solution spinning into continuous lengths of macroscopic neat SWNT fibers. Such fibers ...
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ژورنال
عنوان ژورنال: MRS Bulletin
سال: 2006
ISSN: 0883-7694,1938-1425
DOI: 10.1557/mrs2006.11