Behaviour of the Young's modulus at the magnetocaloric transition in La(Fe,Co,Si)(13)
File(s)
Author(s)
Type
Journal Article
Abstract
Magnetic solid state cooling applications require families of samples where the magnetic transition is cascaded across the working range of the fridge. Although magnetic properties are widely studied, information relating to the mechanical properties of such systems is less prevalent. Here we study the mechanical properties of a series of magnetocaloric La(Co,Fe,Si)13 samples where the Co content is varied to produce a range of transition temperatures. It was found that at room temperature the flexural strength decreases and the Young's modulus increases with increasing Co content. Interestingly we find a significant reduction of Young's modulus at temperature around the magnetic transition temperature. This reduction was less pronounced with increasing Co content. We associate the softening with the magnetovolume coupling known to exist in these materials.
Date Issued
2016-11-25
Date Acceptance
2016-11-24
Citation
Journal of Alloys and Compounds, 2016, 697, pp.427-433
ISSN
1873-4669
Publisher
Elsevier
Start Page
427
End Page
433
Journal / Book Title
Journal of Alloys and Compounds
Volume
697
Copyright Statement
© 2016, Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Commission of the European Communities
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000391820800055&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
EP/G060940/1
310748
Subjects
Science & Technology
Physical Sciences
Technology
Chemistry, Physical
Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Chemistry
Materials Science
Magnetocaloric
Ferromagnetic
Phase transition
La(Fe,Si)(13)
Lattice softening
Young's modulus
MAGNETIC REFRIGERATION
ROOM-TEMPERATURE
MECHANICAL-PROPERTIES
CORROSION BEHAVIOR
PHASE-TRANSITION
PERFORMANCE
DEPENDENCE
GADOLINIUM
ALLOYS
QUARTZ
Materials
0912 Materials Engineering
0914 Resources Engineering And Extractive Metallurgy
0204 Condensed Matter Physics
Publication Status
Published