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Carbon filament spiral

This threadlike allotrope of carbon is organized into long spirals of bonded carbon atoms. Each spiral contains 300 to 500 carbon atoms. It s produced by using a laser to zap a graphite rod in a glass container filled with argon gas. The allotrope splatters on the glass walls and is then removed. Because they conduct electricity, these carbon filaments may have uses in microelectronics. Some linear acetylenic carbons may eventually form ftillerenes, whereas others form soot. [Pg.178]

Other mechanisms have been proposed for filamentous carbon growth, and other filament structures have been observed. One of the most common variations in the basic filament type is the spiral conformation, examples of which are shown in Figure 3. [Pg.6]

Fibers with a radial transverse microstructure can exhibit a crack, which Volk [54] reports will tend to spiral around the fiber axis. The crack is able to transform into a true radial structure along a single filament and vice versa (Figure 7.13). White et al [55] believe that this is due to the annihilation of disclinations, as depicted in Figure 7.14. Yoon et al [56,57] have investigated crack formation in mesophase pitch based carbon fibers. [Pg.305]


See other pages where Carbon filament spiral is mentioned: [Pg.106]    [Pg.188]    [Pg.222]    [Pg.159]    [Pg.6]    [Pg.146]    [Pg.70]    [Pg.359]    [Pg.959]   
See also in sourсe #XX -- [ Pg.6 ]




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