Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7899128 | Journal of the European Ceramic Society | 2013 | 6 Pages |
Abstract
Zirconium titanate-zirconia composites have potential for applications involving variations of temperature. Elastic characterization is necessary to evaluate stresses developed in materials which may be used in these kinds of applications. In this work, Young's and shear modulus and Poisson's ratio of two zirconium titanate-zirconia bulk composites (Z(Y)T70 and Z(Y)T50) have been determined at room temperature by the Impulse Excitation Technique (IET). Furthermore, Young's modulus (E) has been determined at high temperature (up to 1400 °C) for both composites. Young's modulus of Z(Y)T70 composite decreases â6% between room temperature and 400 °C due to the presence of zirconia. From 400 to 1400 °C, the decrease of E (â14%) is due to the presence of zirconium titanate. Young's modulus behaviour at high temperature of Z(Y)T50 composite is determined by the degree of microcrack healing, which depends on the maximum temperature reached.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
E. López-López, J.P. Erauw, R. Moreno, F. Cambier, C. BaudÃn,