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

被引：40

作者：

Garmendia, N. ^{[1
,2
]}

Grandjean, S. ^{[3
]}

Chevalier, J. ^{[3
]}

Diaz, L. A. ^{[4
]}

Torrecillas, R. ^{[4
]}

Obieta, I. ^{[1
,2
]}

机构：

[1] CIBER BBN, E-20009 San Sebastian, Spain

[2] TECNALIA, E-20009 San Sebastian, Spain

[3] Univ Lyon, INSA Lyon, MATEIS UMR CNRS 5510, F-69621 Villeurbanne, France

[4] Univ Oviedo, Principado Asturias Consejo Super Invest Cient CS, Nanomat & Nanotechnol Res Ctr CINN, E-33428 Llanera, Spain

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2011年 / 31卷 / 06期

关键词：

Nanotube; ZrO2; Nanocomposites; Biomedical applications; Ageing; FRACTURE-TOUGHNESS; SINTERING TEMPERATURE; Y-TZP; CERAMICS; TRANSFORMATION; INDENTATION; GROWTH; HIP;

D O I：

10.1016/j.jeurceramsoc.2010.12.029

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1009 / 1014

页数：6

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