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Activated carbon fibers electrical resistance

Carbon fiber has been found to be an effective thermistor [192-194], such as a cement paste reinforced with chopped carbon fiber (about 5 mm long) with silica fume (15 wt% cement). Its electrical resistivity decreased reversibly with increasing temperature (1-45°C), with activation energy of electrical conduction (electron hopping) of 0.4 eV. This value is comparable to semiconductors (typical thermistor materials) and is higher than that of carbon fiber polymer matrix composites. The current-voltage characteristics of carbon fiber reinforced silica fume cement paste were linear up to 8 V at 20°C. [Pg.1023]

See other pages where Activated carbon fibers electrical resistance is mentioned: [Pg.198]    [Pg.219]    [Pg.198]    [Pg.200]    [Pg.279]    [Pg.590]    [Pg.483]    [Pg.202]    [Pg.7188]    [Pg.24]    [Pg.160]    [Pg.101]    [Pg.226]    [Pg.492]    [Pg.93]    [Pg.85]    [Pg.43]   
See also in sourсe #XX -- [ Pg.108 ]



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