Thermal and Mechanical Response of Industrial Porous Ceramics

Giovanni Bruno; Alexander M. Efremov; Andrey N. Levandovskiy; Irina Pozdnyakova; Darren J. Hughes; Bjørn Clausen

doi:10.4028/www.scientific.net/MSF.652.191

Paper Titles

Non Destructive Characterization of Phase Distribution and Residual Strain/Stress Map of Two Ancient (Koto) Age Japanese Swords
p.167

The Influence of Casting Geometry on the Tensile Properties and Residual Stresses in Aluminium Castings
p.174

Residual Stress Evaluation at Bone Implant Interfaces Using High Energy X-Ray Diffraction
p.180

Characterization of New Bone Constituted at the Interface with Implant by Synchrotron Radiation
p.185

Thermal and Mechanical Response of Industrial Porous Ceramics
p.191

The Robot Concept at STRESS-SPEC for the Characterisation or Semi-Finished Products
p.197

Hybrid Measurement of CT and Strain Distribution of Internal Crack Using Synchrotron High-Energy Monochromatic X-Rays
p.202

Measurements of Residual Stress in a Welded Compact Tension Specimen Using the Neutron Diffraction and Slitting Techniques
p.210

The Use of Diffraction to Study Fatigue Crack Tip Mechanics
p.216

HomeMaterials Science ForumMaterials Science Forum Vol. 652Thermal and Mechanical Response of Industrial...

Thermal and Mechanical Response of Industrial Porous Ceramics

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.