Published June 2014 | Version v1
Journal article Metadata-only

Martensitic transformation and giant magnetic entropy change in Ni42.8Mn40.3Co5.7Sn11.2 alloy

Creators

  • 1. College of Mechanical Engineering, Heavy Machinery Engineering Research Center of Ministry of Education of China, Taiyuan University of Science and Technology, Taiyuan 030024 (China)
  • 2. College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024 (China)

Description

The crystal structure, phase transition, and magnetocaloric effect in Ni42.8Mn40.3Co5.7Sn11.2 alloy are investigated by structure analysis and magnetic measurements. A large magnetic entropy change of 45.6 J/kg·K is obtained at 215 K under a magnetic field of 30 kOe (1 Oe = 79.5775 A·m−1). The effective refrigerant capacity of Ni42.8Mn40.3Co5.7Sn11.2 alloy reaches 72.1 J/kg under an applied field changing from 0 to 30 kOe. The external magnetic field shifts the martensitic transition temperature about 3–4 K/10 kOe towards low temperature, indicating that magnetic field can retard the phase transition to a certain extent. The origin of large magnetic entropy change is discussed in the paper

Availability note (English)

Available from http://dx.doi.org/10.1088/1674-1056/23/6/067501

Additional details

Identifiers

DOI
10.1088/1674-1056/23/6/067501;

Publishing Information

Journal Title
Chinese Physics. B
Journal Volume
23
Journal Issue
6
Journal Page Range
[5 p.]
ISSN
1674-1056

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46085395
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
CAPACITY; CRYSTAL STRUCTURE; ENTROPY; MAGNETIC FIELDS; MAGNETIC PROPERTIES; NICKEL ALLOYS; PHASE TRANSFORMATIONS; REFRIGERANTS; TEMPERATURE RANGE 0065-0273 K
Descriptors DEC
ALLOYS; FLUIDS; PHYSICAL PROPERTIES; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS; WORKING FLUIDS