RT Journal Article
T1 Zirconia-multiwall carbon nanotubes dense nano-composites with an unusual balance between crack and ageing resistance
A1 Garmendia, N.
A1 Grandjean, S.
A1 Chevalier, J.
A1 Diaz, L. A.
A1 Torrecillas, R.
A1 Obieta, I.
AB Yttria stabilized zirconia (Y-TZP) ceramics are used in a wide variety of applications, such as orthopaedic and dental implants. Y-TZP offers indeed a unique combination of biocompatibility and mechanical properties (high crack resistance for a ceramic). However, the major drawback of Y-TZP is their lack of stability: zirconia is prone to ageing, especially under humid atmosphere. Increasing the ageing resistance of Y-TZP led so far to a decrease of toughness and crack resistance. Here we show that the addition of a small volume fraction of multiwall carbon nanotubes (MWCNT) in a polycrystalline nano-structured Y-TZP sintered under specific conditions (Spark Plasma Sintering) leads to a material exhibiting a balance between ageing and crack resistance never reached before.
SN 0955-2219
YR 2011
FD 2011-06
LK https://hdl.handle.net/11556/3337
UL https://hdl.handle.net/11556/3337
LA eng
NO Garmendia , N , Grandjean , S , Chevalier , J , Diaz , L A , Torrecillas , R & Obieta , I 2011 , ' Zirconia-multiwall carbon nanotubes dense nano-composites with an unusual balance between crack and ageing resistance ' , Journal of the European Ceramic Society , vol. 31 , no. 6 , pp. 1009-1014 . https://doi.org/10.1016/j.jeurceramsoc.2010.12.029
NO This work was supported by the Basque Government ( BF105.R2.555 and Etortek : Nanomaterials). The authors would also like to acknowledge Dr. Jordi Arbiol from the Universitat de Barcelona (Spain) for the TEM images.
DS TECNALIA Publications
RD 29 jul 2024