Investigation of ferroelastic mechanical behavior of lanthanum ferrite, LaFeO3

M. Islam, W. Araki, Y. Arai
{"title":"Investigation of ferroelastic mechanical behavior of lanthanum ferrite, LaFeO3","authors":"M. Islam, W. Araki, Y. Arai","doi":"10.1063/1.5115956","DOIUrl":null,"url":null,"abstract":"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.","PeriodicalId":423885,"journal":{"name":"8TH BSME INTERNATIONAL CONFERENCE ON THERMAL ENGINEERING","volume":"6 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"8TH BSME INTERNATIONAL CONFERENCE ON THERMAL ENGINEERING","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1063/1.5115956","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

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.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
铁酸镧LaFeO3的铁弹性力学行为研究
本文研究了铁素体镧LaFeO3在单轴压缩下的变形行为。在高温刻蚀过程中,样品中存在铁弹性畴,并通过扫描电镜观察得到了证实。所有样品的XRD谱图均显示出具有正交晶型结构的特征反射。分别在93K、193K、293K、393K和553K温度下进行单轴压缩试验,加载速率为1.0 MPa/s。由于铁弹性的存在,所有样品在加载-卸载过程中均表现出非弹性应力-应变行为。应力应变曲线的斜率随温度和铁弹性参数的增加而增大,初始模量和加载模量因铁弹性畴切换而增大。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Undisturbed ground temperature in Melbourne Heat transfer enhancement in shell and tube heat exchanger by using Al2O3/water and TiO2/water nanofluid Life cycle assessment of a reciprocating engine power plant in Bangladesh Effect of thermal ageing on dry-sliding wear behavior of polymeric matrix materials used in FRC applications Effect of heating condition on entropy generation of conjugate natural convection in a prismatic enclosure
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1