RT Journal Article
T1 Slip casting of nanozirconia/MWCNT composites using a heterocoagulation process
A1 Garmendia, Nere
A1 Santacruz, Isabel
A1 Moreno, Rodrigo
A1 Obieta, Isabel
AB The addition of carbon nanotubes (CNTs) is expected to increase the fracture toughness of ceramic matrix composites, but an uniform dispersion of the nanotubes in the matrix is essential. This is a complex issue in aqueous medium because of the nanotubes hydrophobicity. In this work, the stability and rheological behaviour of nanozirconia concentrated suspensions, from 20 to 33 vol% solids, with and without multiwall carbon nanotubes (MWCNTs) was optimised in order to obtain homogeneous green samples by slip casting. The manufacture of nanozirconia/MWCNTs composites was performed using a heterocoagulation process in which the CNTs were homogeneously coated by the ceramic particles through strong electrostatic attractive forces between the two phases and further consolidation by a slip casting route. After sintering, the effect of the MWCNT on the hardness and fracture toughness of the nanostructured zirconia samples was evaluated.
SN 0955-2219
YR 2009
FD 2009-07
LK https://hdl.handle.net/11556/3930
UL https://hdl.handle.net/11556/3930
LA eng
NO Garmendia , N , Santacruz , I , Moreno , R & Obieta , I 2009 , ' Slip casting of nanozirconia/MWCNT composites using a heterocoagulation process ' , Journal of the European Ceramic Society , vol. 29 , no. 10 , pp. 1939-1945 . https://doi.org/10.1016/j.jeurceramsoc.2008.12.014
DS TECNALIA Publications
RD 30 jul 2024