Zirconia-multiwall carbon nanotubes dense nano-composites with an unusual balance between crack and ageing resistance

N. Garmendia; S. Grandjean; J. Chevalier; L. A. Diaz; R. Torrecillas; I. Obieta

doi:10.1016/j.jeurceramsoc.2010.12.029

Zirconia-multiwall carbon nanotubes dense nano-composites with an unusual balance between crack and ageing resistance

N. Garmendia^*, S. Grandjean, J. Chevalier, L. A. Diaz, R. Torrecillas, I. Obieta

^*Corresponding author for this work

TECNALIA Research & Innovation

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48 Citations (Scopus)

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.

Original language	English
Pages (from-to)	1009-1014
Number of pages	6
Journal	Journal of the European Ceramic Society
Volume	31
Issue number	6
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2010.12.029
Publication status	Published - Jun 2011

Funding

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.

Funders	Funder number
Eusko Jaurlaritza	BF105.R2.555

Keywords

Ageing
Biomedical applications
Nanocomposites
Nanotube

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10.1016/j.jeurceramsoc.2010.12.029

Cite this

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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.",

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AU - Grandjean, S.

AU - Chevalier, J.

AU - Diaz, L. A.

AU - Torrecillas, R.

AU - Obieta, I.

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Zirconia-multiwall carbon nanotubes dense nano-composites with an unusual balance between crack and ageing resistance

Abstract

Funding

Keywords

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