Paper Title:
Fracture Toughness of a Silica-Doped Cubic Zirconia (8Y-CSZ)
  Abstract

In a high-purity 8Y-CSZ, the doping of 0.15 - 5 mass% pure silica introduces a glass phase dispersing uniformly along grain-boundary facets and at multiple junctions. For materials with grain sizes of 0.75 - 2.4 m, the dispersion of the glass phase decreases the elastic modulus, the Vickers hardness and the elastic modulus-to-hardness ratio, whereas it affects little in the fracture toughness measured by a Vickers-indentation method and a single-crack-precracked-beam method. Inspection of crack propagation paths shows that the glass phase with sizes smaller than those of the matrix grains is not a site for easy crack-propagation, but provides a site for a crack-deflection mechanism.

  Info
Periodical
Materials Science Forum (Volumes 638-642)
Main Theme
Edited by
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
Pages
3846-3851
DOI
10.4028/www.scientific.net/MSF.638-642.3846
Citation
K. Hiraga, K. Morita, B. N. Kim, H. Yoshida, "Fracture Toughness of a Silica-Doped Cubic Zirconia (8Y-CSZ) ", Materials Science Forum, Vols. 638-642, pp. 3846-3851, 2010
Online since
January 2010
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: Yan Qing Wu, Hui Ji Shi
Abstract:This study looks at the crack propagation characteristics based on the cohesive zone model (CZM), which is implemented as a user defined...
187
Authors: Shirakashi Takahiro, Watanabe Ryo
Abstract:The effect of cutting fluids on surface characteristics of glassone of homogenuious brittle materialsare discussed. In water both fracture...
544
Authors: Bo Lin He, Ying Xia Yu, Er Yu Shao
Abstract:The effect of undissolved ferrite amount on impact fatigue properties and failure mechanism were studied by using 42CrMo steel with...
54
Authors: Muhammad A. Arafin, Jerzy A. Szpunar
Abstract:A model for intergranular damage propagation in polycrystalline materials is proposed, based on Markov Chain theory, Monte Carlo simulation...
29
Authors: Yan Hua Zhao, Hua Zhang, Wei Dong
Abstract:The wedge splitting (WS) test is now a promising method to perform stable fracture mechanics tests on concrete-like quasi brittle materials....
425