Jump to main content
Jump to site search

Issue 9, 2005
Previous Article Next Article

The role of residual stress in the fracture properties of a natural ceramic

Author affiliations

Abstract

The role of residual stress in enhancing the fracture properties of the shell Ensis siliqua (razor shell) is reported. Using energy-variable synchrotron X-ray diffraction it is shown that the calcium carbonate crystals are preferentially orientated as a function of depth. Using scanning electron microscopy the structure is found to be mainly divided into two regions, namely crossed lamellar and prismatic. The latter are shown to be at a higher residual compressive stress than the former which gives rise to delaminations of the structure upon mechanical deformation. The role of residual stress in the structure is also shown to be critical to the fracture properties of the material and this has implications for the fabrication of man-made laminate ceramics.

Graphical abstract: The role of residual stress in the fracture properties of a natural ceramic

Back to tab navigation

Additions and corrections

Article information


Submitted
27 May 2004
Accepted
18 Oct 2004
First published
17 Nov 2004

J. Mater. Chem., 2005,15, 947-952
Article type
Paper

The role of residual stress in the fracture properties of a natural ceramic

S. J. Eichhorn, D. J. Scurr, P. M. Mummery, M. Golshan, S. P. Thompson and R. J. Cernik, J. Mater. Chem., 2005, 15, 947
DOI: 10.1039/B407994A

Search articles by author

Spotlight

Advertisements