Paper Title:
Flaw Tolerant Ceramic Laminates with Negligible Residual Stresses between Layers
  Abstract

Ceramic laminates can be designed to combine high strength with flaw tolerance. In this paper, the designing approach based on the mechanical response of residual stresses free biological layered structures is revised. The main design tools are analysed and different ceramic-ceramic systems combining stiffness, high strength and flaw tolerance with thermo-mechanical stability are described. Two main approaches have been used depending on the relative toughness of the layers and the interfaces between them. Laminates constituted by layers separated by weak interfaces, to originate crack deflection and delamination along the interface, show high thermal shock resistance but limited resistance to shear stresses and, thus, to wear. Laminates with strong interfaces that combine stiff and high strength external layers with flaw tolerant internal ones are appropriate for wear applications. In this group of materials, the combination of layers with the same phase composition and different microstructures avoids residual stresses due to thermal expansion mismatch, but the attainment of such microstructural differences implies the co-sintering of layers with large differences in the green state. The generation “in situ” during sintering of the desired microstructural differences represents an interesting alternative in terms of processing for this group of materials.

  Info
Periodical
Edited by
Marc Anglada et al.
Pages
17-26
DOI
10.4028/www.scientific.net/KEM.333.17
Citation
S. Bueno, C. Baudín, "Flaw Tolerant Ceramic Laminates with Negligible Residual Stresses between Layers", Key Engineering Materials, Vol. 333, pp. 17-26, 2007
Online since
March 2007
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: Zhengbo Yu, Zoran Krstić, Vladimir D. Krstić
Abstract:Self-sealed laminar Si3N4/SiC composites, with different cross-section shapes and various thickness ratios of Si3N4 to SiC, have been...
1873
Authors: Tanja Lube
Abstract:The progress of research efforts on the mechanical properties of ceramic laminates is reviewed. Laminates with weak interface are described...
87
Authors: Jian Ping Lin, Guan Jun Qiao, Hai Yun Jin, Ya Jie Guo, Tian Jian Lu
Abstract:In this research, the metal and ceramic laminates Ti/Al2O3, Ni/Al2O3 were prepared by PAS. The bonding interfaces of Ti/Al2O3, Ni/Al2O3 were...
1831
Authors: Roberts Joffe
Abstract:Experimental results of performance of non-crimp fabric composites are presented in this paper. In order to characterize in-plane shear...
45
Authors: Tina Hausöl, Heinz Werner Höppel, Matthias Göken
Abstract:Among the well-known methods of severe plastic deformation the accumulative roll bonding (ARB) process is most promising for producing...
217