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Magnetocaloric effect of Fe(64)Mn(15-x)Co(x)Si(10)B(11) amorphous alloys

Title
Magnetocaloric effect of Fe(64)Mn(15-x)Co(x)Si(10)B(11) amorphous alloys
Author
윤종승
Keywords
Fe-Mn amorphous alloy; Magnetocaloric effect; Magnetic entropy
Issue Date
2011-07
Publisher
Elsevier Science B.V., Amsterdam.
Citation
JOURNAL OF ALLOYS AND COMPOUNDS 권: 509 호: 29 페이지: 7764-7767
Abstract
The magnetocaloric effect (MCE) of melt-spun Fe64Mn15-xCoxSi10B11 amorphous alloys with x = 0, 0.2, 0.5, 0.7, and 1.0 was evaluated with the aim of maximizing the magnetic entropy change close to the room temperature. The peak magnetic entropy change, vertical bar Delta S-M(pk)vertical bar for Fe64Mn15Si10B11 at 309 K at H = 15 kOe was limited to 0.82 J/kg K. The magnetic properties and ensuing MCE were very sensitive to the Co content that it is conjectured that with a smaller amount of Co addition the vertical bar Delta S-M(pk)vertical bar can be optimized while maintaining the Curie temperature near room temperature. It was also shown that the Fe64Mn15-xCoxSi10B11 amorphous alloys obeyed the master curve behavior as the magnetic entropy change curve collapsed on to a single universal curve. (C) 2011 Elsevier B. V. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0925838811010310?via%3Dihubhttp://hdl.handle.net/20.500.11754/36006
ISSN
0925-8388; 1873-4669
DOI
10.1016/j.jallcom.2011.04.146
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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