Investigation of Ferroelastic Mechanical Behavior of Lanthanum Ferrite, LaFeO3

被引：0
|
作者：
Islam, Md. Nurul [1 ]
Araki, Wakako [2 ]
Arai, Yoshio [2 ]
机构：
[1] Rajshahi Univ Engn & Technol, Dept Mech Engn, Rajshahi 6204, Bangladesh
[2] Saitama Univ, Dept Mech Engn, Sakura Ku, 255 Shimo Okubo, Saitama 3388570, Japan
来源：
8TH BSME INTERNATIONAL CONFERENCE ON THERMAL ENGINEERING | 2019年 / 2121卷
关键词：
ELECTRICAL-PROPERTIES;
D O I：
10.1063/1.5115956
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The present study investigates the deformation behavior of lanthanum ferrite, LaFeO3 under uniaxial compression. Ferroelastic domains were observed in samples at high temperature etching which was confirmed by scanning electron microscopic observation. XRD patterns of all samples showed characteristics reflection with orthorhombic crystal structure. Uniaxial compression tests were carried out at temperature of 93K, 193K, 293K, 393K, and 553K, at a constant 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 increased with increasing the temperature as well as ferroelastic parameters, initial modulus and loading modulus were increased due to ferroelastic domain switching.
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页数：6
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