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Thermal and mechanical response of industrial porous ceramics

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Bruno, Giovanni, Efremov, Alexander M., Levandovskiy, Andrey N., Pozdnyakova, Irina, Hughes, Darren J. and Clausen, Bjørn (2010) Thermal and mechanical response of industrial porous ceramics. Materials Science Forum, Vol.652 . pp. 191-196. doi:10.4028/www.scientific.net/MSF.652.191 ISSN 1662-9752.

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Official URL: http://dx.doi.org/10.4028/www.scientific.net/MSF.6...

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Abstract

In this study, the mechanical behavior of porous thermally microcracked ceramics has been compared with that of solely porous materials, under compressive applied stress. The different aspects of the micro and macroscopic stress-strain curves have been inserted into a coherent analytical model and compared with finite element modeling calculations. The agreement between experiments and models is very good. It is shown that mechanical microcracking, as opposed to thermal, introduces an irreversible aspect in the deformation mechanisms of porous ceramics. In this concern, mechanical loads differentiate themselves from thermal cycling. This leads for instance to a change of the Young’s modulus as a function of applied load, which qualifies those materials as visco-elastic.

Item Type: Journal Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group)
Journal or Publication Title: Materials Science Forum
Publisher: Trans Tech Publications Ltd.
ISSN: 1662-9752
Official Date: 2010
Dates:
DateEvent
2010Published
Volume: Vol.652
Number of Pages: 6
Page Range: pp. 191-196
DOI: 10.4028/www.scientific.net/MSF.652.191
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Version or Related Resource: This item was also presented at the 5th International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation, Mito, Japan, Nov 10-12, 2009.

Data sourced from Thomson Reuters' Web of Knowledge

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