Imperial College London
Portrait Picture

ProfessorMaryRyan

Central Faculty, Office of the Provost

Vice-Provost (Research and Enterprise)
 
 
 
//

Contact

 

+44 (0)20 7594 6755m.p.ryan

 
 
//

Location

 

B338Royal School of MinesSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Wang:2023:10.1016/j.matlet.2023.134034,
author = {Wang, S and Burdett, P and Lovell, E and Bettles, R and Wilson, N and Ryan, M and Giuliani, F},
doi = {10.1016/j.matlet.2023.134034},
journal = {Materials Letters},
pages = {1--4},
title = {Fracture properties of La(Fe,Mn,Si)13 magnetocaloric materials},
url = {http://dx.doi.org/10.1016/j.matlet.2023.134034},
volume = {338},
year = {2023}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - La(Fe,Mn,Si)13 alloys are a promising material family for magnetic refrigeration. Challenges associated with their structural integrity during device assembly and operation requires deep understanding of the mechanical properties. Here we developed a workflow to quantitatively study the fracture properties of La(Fe,Mn,Si)13 plates used in magnetic cooling devices. We employed microstructural characterisation, optical examination of defects, and four-point bending tests of samples with known defect sizes to evaluate their mechanical performance. We established the residual strength curve which directly links observed defects to mechanical strength. The estimated fracture toughness KC of hydrogenated La(Fe,Mn,Si)13 is approximately 4 MPa·m1/2 for the geometry employed. The established relationship between strength and crack length enables the prediction of mechanical performance through examination of defects via optical microscopy, therefore can be used industrially for directing plate selection to guarantee the mechanical stability of refrigeration devices.
AU  - Wang,S
AU  - Burdett,P
AU  - Lovell,E
AU  - Bettles,R
AU  - Wilson,N
AU  - Ryan,M
AU  - Giuliani,F
DO  - 10.1016/j.matlet.2023.134034
EP  - 4
PY  - 2023///
SN  - 0167-577X
SP  - 1
TI  - Fracture properties of La(Fe,Mn,Si)13 magnetocaloric materials
T2  - Materials Letters
UR  - http://dx.doi.org/10.1016/j.matlet.2023.134034
UR  - https://www.sciencedirect.com/science/article/pii/S0167577X23002197
UR  - http://hdl.handle.net/10044/1/102925
VL  - 338
ER  -
Download