Preferred Label : filamentous carbon;
IUPAC definition : A carbonaceous deposit from gaseous carbon compounds, consisting of filaments grown
by the catalytic action of metal particles.;
Scope note : in general, such deposits are obtained at pressures of kpa in the temperature region
600k -1300k on metals such as iron, cobalt or nickel. typical filaments consist of
a duplex structure, a relatively oxidation-resistant skin surrounding a more easily
oxidizable core, with a metal particle located at the growing end of the filament.
they generally range from 0.01µm to 0.5µm in diameter and up to 10µm in length. in
some systems, the metal particles are located in the middle of the filaments, and
there are also examples where several filaments originate from a single particle.
the filaments may be produced in different conformations, such as helical, twisted
and straight.;
Origin ID : F02362;
See also
A carbonaceous deposit from gaseous carbon compounds, consisting of filaments grown
by the catalytic action of metal particles.
