Published February 2016 | Version v1
Journal article Metadata-only

Magnetic entropy change and magnetic properties of LaFe11.5Si1.5 after controlling the Curie temperature by partial substitution of Mn and hydrogenation

Creators

  • 1. School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384 (China)
  • 2. College of Science, Tianjin University of Technology, Tianjin 300384 (China)

Description

Magnetic properties and magnetic entropy changes of La(Fe1−xMnx)11.5Si1.5Hy compounds are investigated. Their Curie temperatures are adjusted to room temperature by partial Mn substitution for Fe and hydrogen absorption in 1-atm (1 atm = 1.01325 × 105 Pa) hydrogen gas. Under a field change from 0 T to 2 T, the maximum magnetic entropy change for La(Fe0.99Mn0.01)11.5Si1.5H1.61 is −11.5 J/kg. The suitable Curie temperature and large value of ΔSm make it an attractive potential candidate for the room temperature magnetic refrigeration application. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/1674-1056/25/2/027501

Additional details

Identifiers

DOI
10.1088/1674-1056/25/2/027501;

Publishing Information

Journal Title
Chinese Physics. B
Journal Volume
25
Journal Issue
2
Journal Page Range
[4 p.]
ISSN
1674-1056

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47091413
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
ABSORPTION; CURIE POINT; ENTROPY; HYDROGEN; HYDROGENATION; IRON; LANTHANUM COMPOUNDS; MAGNETIC PROPERTIES; MANGANESE; REFRIGERATION; TEMPERATURE RANGE 0273-0400 K
Descriptors DEC
CHEMICAL REACTIONS; COOLING; ELEMENTS; METALS; NONMETALS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SORPTION; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENTS; TRANSITION TEMPERATURE