Ceramic composites from mesoporous silica coated multi-wall carbon nanotubes
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Tartalom: http://www.sciencedirect.com/science/article/pii/S1387181...
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published


Type = Article
Cím:
Ceramic composites from mesoporous silica coated multi-wall carbon nanotubes
Létrehozó:
Dillon, F. C.
Moghal, J.
Koós, Antal Adolf
Lozano, J. G.
Miranda, L.
Porwal, H.
Reece, M. J.
Grobert, N.
Dátum:
2015
Téma:
QC Physics / fizika
QC06 Physics of condensed matter / szilárdtestfizika
Tartalmi leírás:
The addition of multi-wall carbon nanotubes (MWCNTs) to ceramic matrices could provide nanocomposites
with enhanced properties. Efforts to produce these materials are normally frustrated by two
major issues: firstly, the difficulty of attaining a homogenous distribution of MWCNTs in the matrix and
secondly the poor bonding between the MWCNTs and the ceramic matrix. Herein, a processing method
that overcomes these problems by using a solegel route to produce a low-melting point silica matrix, in
combination with a dispersion method for the MWCNTs that is compatible with the sol is reported. This
universal method was used to coat mesoporous silica on conventional, nitrogen-doped (CNX) and borondoped
(CBX) produced using aerosol assisted chemical vapour deposition (AACVD) as well as commercially
available MWCNTs. After hot-pressing the powders, record improvements (ca. 50%) in hardness for
the nanocomposites over the silica were observed and this improvement is enhanced by 50% if spark
plasma sintering is used to consolidate the nanocomposites. Nanocomposites containing conventional
nanotubes produced from AACVD and commercially available nanotubes have near identical hardness
even though the nanotubes have different properties and characteristics.
Típus:
Article
PeerReviewed
info:eu-repo/semantics/article
Formátum:
text
Azonosító:
Dillon, F. C. and Moghal, J. and Koós, Antal Adolf and Lozano, J. G. and Miranda, L. and Porwal, H. and Reece, M. J. and Grobert, N. (2015) Ceramic composites from mesoporous silica coated multi-wall carbon nanotubes. MICROPOROUS and Mesoporous Materials, 217. pp. 159-166. ISSN 1387-1811
Kapcsolat:
238363
Létrehozó:
info:eu-repo/semantics/restrictedAccess