TY - JOUR
T1 - Formation of carbon-based microfibers during sintering of bentonite
AU - García, A.
AU - Bocanegra-Bernal, M. H.
AU - Domínguez, C.
AU - Aguilar-Elguézabal, A.
PY - 2009/6
Y1 - 2009/6
N2 - We report the formation of carbon-based fibers inside a bentonitic matrix during sintering of a ceramic body. Since this peculiar bentonite contained organic matter and iron, the formation of these fibers may be analogous to the synthesis of carbon nanotubes by chemical vapor deposition or spray pyrolysis. In these processes iron acts as catalyst to favor graphitization of the carbon source. During sintering and melting of the bentonite, the thermal treatment restricted diffusion of air into the interior of the clay. This created bubbles containing a reducing atmosphere as well as the elements needed to synthesize carbon-based fibers.
AB - We report the formation of carbon-based fibers inside a bentonitic matrix during sintering of a ceramic body. Since this peculiar bentonite contained organic matter and iron, the formation of these fibers may be analogous to the synthesis of carbon nanotubes by chemical vapor deposition or spray pyrolysis. In these processes iron acts as catalyst to favor graphitization of the carbon source. During sintering and melting of the bentonite, the thermal treatment restricted diffusion of air into the interior of the clay. This created bubbles containing a reducing atmosphere as well as the elements needed to synthesize carbon-based fibers.
KW - Bentonite
KW - Carbon microfibers
KW - Sintering
UR - http://www.scopus.com/inward/record.url?scp=67349225109&partnerID=8YFLogxK
U2 - 10.1016/j.clay.2009.04.003
DO - 10.1016/j.clay.2009.04.003
M3 - Artículo
SN - 0169-1317
VL - 45
SP - 95
EP - 97
JO - Applied Clay Science
JF - Applied Clay Science
IS - 1-2
ER -