R-Curves in Al2O3 - Al2O3/ZrO2 Laminates

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

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

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

HomeKey Engineering MaterialsKey Engineering Materials Vol. 290R-Curves in Al2O3 - Al2O3/ZrO2 Laminates

R-Curves in Al₂O₃ - Al₂O₃/ZrO₂ Laminates

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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