Specifications

5.
Accession number: 20131316142122
Title: Magnetic hysteresis loss and corrosion behavior of LaFe 11.5Si1.5 particles coated with Cu
Authors: Tian, N.1 ; Zhang, N.N.1 ; You, C.Y.1 ; Gao, B.2 ; He, J.3/田娜;张娜娜;游才印;高博;何俊
Author affiliation: 1 School of Materials Science and Technology, Xian University of
Technology, Xian 710048, China
2 School of Science, Xian Jiaotong University, Xian 710049, China
3 Division of Functional Materials, Central Iron and Steel Research Institute, Beijing 100081,
China
Corresponding author: You, C.Y. ([e-mail])
Source title: Journal of Applied Physics
Abbreviated source title: J Appl Phys
Volume: 113
Issue: 10
Issue date: March 14, 2013
Publication year: 2013
Article number: 103909
Language: English
ISSN: 00218979
CODEN: JAPIAU
Document type: Journal article (JA)
Publisher: American Institute of Physics, 2 Huntington Quadrangle, Suite N101, Melville, NY
11747-4502, United States
Abstract: The existence of porosity is useful for releasing the strain during the magnetization
and demagnetization processes of La(Fe, Si)13-based magnetocaloric materials, resulting in the
decreases of magnetic hysteresis loss and the improvement of mechanical stability. But the
porosity would affect the heat transfer and corrosion behavior. In this work, we studied the effect
of highly plastic Cu coating on the magnetocaloric properties and corrosion resistance of
LaFe11.5Si1.5 particles. It was found that Cu coating had less influence on the magnetic entropy
changes, but presented a less magnetic hysteresis loss. Under a maximum field of 1.5 T, both
particles with and without coating showed the similar magnetic entropy changes of 8 J/kg K.
Magnetic hysteresis loss was decreased from 2.2 to 1.8 J/kg after Cu coating. The corrosion
current density was decreased and the corrosion potential was increased, indicating an
improvement of the corrosion resistance with Cu coating. © 2013 American Institute of Physics.
Number of references: 14
Main heading: Magnetic hysteresis
Controlled terms: Coatings - Corrosion resistance - Corrosive effects -
Demagnetization - Entropy - Lanthanum alloys - Silicon
Uncontrolled terms: Corrosion behavior - Corrosion current densities - Corrosion
potentials - Cu coatings - Demagnetization process - Magnetic entropy change -
Magnetocaloric materials - Magnetocaloric properties
Classification code: 803 Chemical Agents and Basic Industrial Chemicals - 712.1.1 Single
Element Semiconducting Materials - 701.2 Magnetism: Basic Concepts and Phenomena -
804 Chemical Products Generally - 641.1 Thermodynamics - 539.1 Metals Corrosion -