The influence of Dy additions on the magnetocaloric effect in Gd{sub 0.97}V{sub 0.03} alloys

Journal Article · Wed Apr 15 04:00:00 EDT 2009 · Materials Characterization

DOI:https://doi.org/10.1016/j.matchar.2008.09.008· OSTI ID:21192611

Wei, Wu; Hui, Zhao ^[1]; Guangfu, Yin ^[2]

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1. Department of Material Science and Engineering, Xihua Univiersity, Chengdu, 610039 (China)
2. Department of Material Science and Engineering, Sichuan Univiersity, Chengdu, 610064 (China)

The influence of Dy on the magnetocaloric effect in Gd{sub 0.97-x}Dy{sub x}V{sub 0.03} (x = 0.1, 0.2, 0.3) alloys has been studied. These alloys were prepared by arc melting on a water-cooled copper hearth under an argon atmosphere. The magnetization behavior has been analyzed by X-ray diffraction and a vibrating sample magnetometer. Results indicate that the Curie points of Gd{sub 0.97-x}Dy{sub x}V{sub 0.03} alloys decrease linearly with increasing content of Dy. The values of maximum magnetic entropy change ({delta}S{sub M}) and relative cooling power (RCP) for x = 0 {approx} 0.2 is larger than that of Gd alone over a wider temperature range. The Gd{sub 0.97-x}Dy{sub x}V{sub 0.03} alloys have promising potential as working substance candidates for magnetic refrigeration due to their tunable Curie temperature and the favorable properties of the magnetocaloric effect.

• OSTI ID: 21192611
• Journal Information: Materials Characterization, Journal Name: Materials Characterization Journal Issue: 4 Vol. 60; ISSN 1044-5803; ISSN MACHEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ARGON
COPPER
CURIE POINT
DYSPROSIUM ALLOYS
ENTROPY
GADOLINIUM ALLOYS
MAGNETIC PROPERTIES
MAGNETIZATION
MELTING
REFRIGERATION
VANADIUM ALLOYS
WATER
X-RAY DIFFRACTION