DOIONLINE

DOIONLINE NO - IJMPE-IRAJ-DOIONLNE-10695

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International Journal of Mechanical and Production Engineering (IJMPE)-IJMPE
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Volume Issue
Issue
Volume-6,Issue-1  ( Jan, 2018 )
Paper Title
Ferroelastic Mechanical Behavior of Porous La0.6sr0.4co0.2fe0.8o3−Δ Prepared Using Corn Starch as a Pore Former
Author Name
M. N Islam, W. Araki, Y. Arai
Affilition
Professor, Department of Mechanical Engineering, Rajshahi University of Engineering & Technology, Rajshahi-6204, Bangladesh and JSPS fellow at Saitama University, Japan, 2,3 Professor, Department of Mechanical Engineering, Saitama University, Japan
Pages
37-40
Abstract
The present study investigates the deformation behavior of porous La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) under uniaxial compression. The porous LSCF samples were prepared using corn starch as a pore former with porosity ranging from 16.5% to 51%. XRD patterns of prepared sample showed the reflection of LSCF perovskite with rhombohedral crystal structure. Uniaxial compression tests were performed at room temperature and a loading rate of 1.0 MPa/s. All samples exhibited non-elastic stress-strain behavior during loading-unloading cycles owing to ferroelasticity. The slope of the stress-strain curves decreased with increasing the porosity and during unloading remnant strain was stored in the material due to domain switching. Ferroelastic parameters like as initial modulus, loading modulus and critical stress of the prepared material decreasing with increasing porosity. Key Words- Porous LSCF, Corn starch, Ferroelasticity.
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