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Title: Magnetocaloric effect in GdCoxAl2-x system for (0.15 ≤ x ≤ 1) compositions

Structure and magnetic properties of the GdAl2-GdCo2 system including magnetocaloric effect have been investigated for various compositions. The as-cast GdCox Al 2-x alloys prepared by arc-melting crystallize in the dual-phase structure of cubic MgCu2-type and hexagonal MgZn2-type phases. All the as-cast dual-phase alloys exhibit only one magnetic phase transition near 77 K even though two ferrimagnetic phases coexist. The magnetic transition was broadened by the continuous transitions of the component phases, which resulted in enhancement of relative cooling power at the expense of the magnetic entropy changes.
 [1] ;  [2] ;  [1] ;  [1] ;  [1] ;  [2]
  1. Univ. of Electronic Science and Technology of China, Chengdu (China). School of Physical Electronics
  2. Iowa State Univ., Ames, IA (United States). Dept. of Electrical and Computer Engineering; Ames Lab., Ames, IA (United States)
Publication Date:
OSTI Identifier:
Report Number(s):
IS-J 8316
Journal ID: ISSN 0021-8979: JAPIAU
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 17
American Institute of Physics (AIP)
Research Org:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
36 MATERIALS SCIENCE Aluminium, Alloy phase transitions, Magnetic phase transitions, Crystal structure, Crystalline alloys