Paper Titles
Thermal Shock Behavior of an Al2O3/ZrO2 Multilayered Ceramic with Residual Stresses due to Phase Transformations
p.191
Failure Mechanisms in Directionally Solidified Alumina-Titania Composites
p.199
Fracture of Monoliths Fabricated by Stacking Water Processed Green Ceramic Tapes
p.203
Fracture Mechanisms in Laminates in the Alumina - Titania System
p.208
R-Curves in Al2O3 - Al2O3/ZrO2 Laminates
p.214
Contact Fatigue in Ceramic Laminated Composites
p.222
Carbon Nanotubes Prepared by CVD
p.230
Effect of Ion-Implantation on the Microstructure of Si3N4 Based Ceramics
p.234
Size Effects in Micro- and Nanocarbon Added C/Si3N4 Composite Prepared by Hot Pressing
p.238

R-Curves in Al2O3 - Al2O3/ZrO2 Laminates

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Abstract:

In order to better understand the fracture behavior of Al2O3-Al2O3/ZrO2 laminates, controlled crack growth experiments were carried out. The method proposed consists of a threepoint bending test of a sandwich beam in which a notched specimen is located in between two metallic bars. Under certain conditions that will be commented, stable crack growth can be obtained. The fracture pattern is related to the residual stresses present in the laminate. R-curves for the laminate were also calculated using the weight function method, including the influence of the free surface. Toughness values are presented in the R-curve after friction considerations.

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Periodical:

Key Engineering Materials (Volume 290)

Pages:

214-221

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.290.214

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Online since:

July 2005

Authors:

Javier Pascual, Francis Chalvet, Tanja Lube, Goffredo de Portu

Keywords:

Ceramic Laminates, Controlled Crack Growth, Toughness

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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