Zirconia-multiwall carbon nanotubes dense nano-composites with an unusual balance between crack and ageing resistance
No Thumbnail Available
Identifiers
Publication date
2011-06
Advisors
Journal Title
Journal ISSN
Volume Title
Publisher
Citations
Export
Abstract
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.
Description
Keywords
Type
Citation
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