FEATURES OF MAGNETOCALORIC EFFECT IN RARE-EARTH BASED R(Co-Fe)(2) LAVES PHASES, WITH R = Ho, Er / Anikin M.,Tarasov E.,Kudrevatykh N.,Semkin M.,Volegov A.,Inishev A.,Zinin A. // . - 2016. - V. , l. . - P. 236-239.

ISSN/EISSN:

0151-1637 / нет данных

Type:

Proceedings Paper

Abstract:

In this paper measurement results of heat capacity (C-p) and magnetocaloric effect (MCE) in Ho(Co1-xFex)(2) and Er(Co1-xFex)(2) systems over the whole range of Co substitution by Fe are presented. Phase composition was controlled by X-ray diffraction analysis. Heat capacity was measured in the temperature range 77-320 K. MCE has been studied within the temperature range 5-670 K in magnetic fields up to 70 kOe. It was found that Fe concentration increase causes the following: the C-p maxima disappearing at Curie temperature point and emergence of magnetic contribution to C-p in a wide temperature range lower this point; a table-like (plateau) MCE temperature dependence for both magnetic entropy change date (Delta S) and direct Delta T-effect measurements independent on Fe concentration. The possible reasons of such behavior are discussed.

Author keywords:

Magnetic properties; magnetocaloric effect; magnetic entropy change; Laves phase; heat capacity MAGNETIC-STRUCTURE

DOI:

10.18462/iir.thermag.2016.0183

Web of Science ID:

ISI:000402542400057

Соавторы в МНС:

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Другие поля

Поле	Значение
Editor	Sandeman, K and Bruck, E and LoBue, M and Barbosa, J and KedousLebouc, A and Rowe, A
Booktitle	7TH INTERNATIONAL CONFERENCE ON MAGNETIC REFRIGERATION AT ROOM TEMPERATURE
Series	Refrigeration Science and Technology
Note	7th International Conference on Magnetic Refrigeration at Room Temperature (Thermag), Torino, ITALY, SEP 11-14, 2016
Organization	Italian Nat Inst Res Metrol; Citta Torino; Int Inst Refrigerat; VACCUMSCHMELZE
Publisher	INT INST REFRIGERATION
Address	177 BLVD MALESHERBES, F-75017 PARIS, FRANCE
Language	English
ISBN	978-2-36215-016-6
Keywords-Plus	MAGNETIC-STRUCTURE
Research-Areas	Thermodynamics; Engineering
Web-of-Science-Categories	Thermodynamics; Engineering, Mechanical
Author-Email	maksim.anikin@urfu.ru
ResearcherID-Numbers	Inishev, Alexander/C-4261-2017
Funding-Acknowledgement	UrFU {[}1362]; Ministry of Education and Science of Russian Federation {[}1362]; Fund of assistance to development of small forms enterprises in scientific-technical sphere {[}6576GU/2015]
Funding-Text	The authors are grateful to Dr. N.V. Selezneva for the help with X-Ray measurements. This work has been supported by the State contracts No. 1362 between UrFU and the Ministry of Education and Science of Russian Federation and by the Fund of assistance to development of small forms enterprises in scientific-technical sphere No. 6576GU/2015.
Number-of-Cited-References	12
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	2
Doc-Delivery-Number	BH7IB