Paper Title:
Surface Properties after Ageing of Dispersion Ceramic and its Influence on Strength
  Abstract

The primary purpose of this work was the examination of the surface and the strength of ATZ ceramic after hydrothermal treatment. Hydrothermal treatment of ATZ ceramic leads to changes of roughness and phase composition on the surface. The phase composition and the microstructure on the surface and within the peripheral zone were determined after applying a stepwise broad ion beam polishing technique and quantitative phase analysis. With this technique a penetration depth of the phase transformation of less than 14 µm was observed. Investigations of the cross sectional area by means of FESEM have shown a transformation zone of about 9 µm. Both methods lead to comparable results with a very small, morphologically changed peripheral layer. The study of the strength after ageing with different thickness of the samples showed that for a thickness of 2.0 mm there is no negative influence on mechanical behaviour. In consideration of this fact no significant change of tribological properties is expected.

  Info
Periodical
Key Engineering Materials (Volumes 396-398)
Main Theme
Edited by
Marcelo Prado and Cecília Zavaglia
Pages
157-160
DOI
10.4028/www.scientific.net/KEM.396-398.157
Citation
S. Begand, T. Oberbach, M. Herrmann, K. Sempf, "Surface Properties after Ageing of Dispersion Ceramic and its Influence on Strength", Key Engineering Materials, Vols. 396-398, pp. 157-160, 2009
Online since
October 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Sabine Begand, Wilfried Glien, Thomas Oberbach
Abstract:The present study has been aimed to combine the advantages of the two single-phase materials, Al2O3 and ZrO2 while avoiding their...
983
Authors: Sabine Begand, Thomas Oberbach, Wilfried Glien
Abstract:The objectives of this study were to investigate the mechanical properties of a ZrO2- Al2O3 composite ceramic. The mechanical strenght, wear...
1019
Authors: Sabine Begand, Thomas Oberbach, Wilfried Glien
Abstract:For orthopaedic applications an Alumina Toughened Zirconia Ceramic was tested regarding its mechanical behaviour. We observed a marked...
1257
Authors: Sabine Begand, Thomas Oberbach, Wilfried Glien
Abstract:The aim of this study was to record corrosion behaviour of ZTA and ATZ ceramics under hydrothermal conditions and under influence of boiling...
1227
Authors: Sabine Begand, Thomas Oberbach, Wilfried Glien, J. Schneider
Abstract:Alumina and zirconia ceramics have been successfully used as materials for joint endoprostheses. The present study has been aimed at...
763