Nanogranular, Melt-Spun Intermetallic Compound SmNi: Magnetocaloric Effect and Large Coercivity

In this work, we investigated magnetic properties and magnetocaloric effect in Fe90−xCoxZr7Cu1B2 (x = 0, 1, 2, 3 and 4) melt-spun ribbons. The ribbons were prepared by using a melt-spinning method with a tangential velocity of a copper wheel of 40 m·s-1. The obtained ribbons are almost amorphous. The alloys exhibit typical soft magnetic behavior with low coercivity at room temperature. A minor replacement of Fe by Co gives an increment in Curie temperature (TC) of the alloys to higher temperatures. The TC of the alloys increases from 242 to 342 K with an increase of x from 0 to 4. Maximum magnetic entropy change, ΔSm max, of the alloys, was found to be larger than 0.7 J·kg-1·K-1 in a magnetic field change ΔH of 12 kOe for all the concentrations of Co. High refrigerant capacitys (RC >100 J ·kg-1 with ΔH = 12 kOe) at room temperature region have been obtained for the alloys. The large magnetocaloric effect near room temperature suggests that the alloys can be considered as magnetic refrigerants in the range of 250–350 K.

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Phase transformation and magnetocaloric effect of Co-doped Mn–Ni–In melt-spun ribbons

Journal of Applied Physics ◽

10.1063/5.0014883 ◽

2020 ◽

Vol 128 (5) ◽

pp. 055110

Author(s):

Yiqiao Yang ◽

Zongbin Li ◽

César Fidel Sánchez-Valdés ◽

José Luis Sánchez Llamazares ◽

Bo Yang ◽

...

Keyword(s):

Phase Transformation ◽

Magnetocaloric Effect ◽

Melt Spun ◽

Melt Spun Ribbons ◽

Co Doped

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Magnetocaloric effect in a multicomponent Laves phase intermetallic compound Gd0.2Tb0.2Dy0.2Ho0.2Er0.2Al2

10.1063/5.0017871 ◽

2020 ◽

Author(s):

P. K. Jesla ◽

J. Arout Chelvane ◽

A. K. Nigam ◽

R. Nirmala

Keyword(s):

Intermetallic Compound ◽

Magnetocaloric Effect ◽

Laves Phase ◽

Phase Intermetallic

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Structural phase coexistence and magnetocaloric effect in fast-neutron-irradiated Ce(Fe0.96 Ru0.04 )2 intermetallic compound

physica status solidi (b) ◽

10.1002/pssb.201349206 ◽

2013 ◽

Vol 251 (1) ◽

pp. 219-223

Author(s):

V. Dube ◽

P. K. Mishra ◽

P. U. Sastry ◽

C. L. Prajapat ◽

A. K. Rajarajan ◽

...

Keyword(s):

Intermetallic Compound ◽

Fast Neutron ◽

Magnetocaloric Effect ◽

Structural Phase ◽

Phase Coexistence

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Microstructure, magnetic properties and magnetocaloric effect in melt-spun Ni–Mn–Ga ribbons

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2008.12.015 ◽

2009 ◽

Vol 478 (1-2) ◽

pp. 59-62 ◽

Cited By ~ 35

Author(s):

N.V. Rama Rao ◽

R. Gopalan ◽

V. Chandrasekaran ◽

K.G. Suresh

Keyword(s):

Magnetic Properties ◽

Magnetocaloric Effect ◽

Melt Spun

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MAGNETOCALORIC EFFECT IN THE INTERMETALLIC COMPOUND Gd3Ni8Al

Modern Physics Letters B ◽

10.1142/s0217984912501679 ◽

2012 ◽

Vol 26 (25) ◽

pp. 1250167 ◽

Cited By ~ 1

Author(s):

M. X. WANG ◽

H. FU ◽

Q. ZHENG ◽

J. TANG

Keyword(s):

Intermetallic Compound ◽

Magnetocaloric Effect ◽

Single Phase ◽

Magnetic Entropy Change ◽

Magnetic Measurements ◽

Entropy Change ◽

Magnetic Entropy ◽

X Ray Diffraction ◽

X Ray ◽

Refrigerant Capacity

The magnetic properties and magnetocaloric effect of the polycrystalline Gd 3 Ni 8 Al intermetallic compound are studied in this paper. Powder X-ray diffraction shows that the alloy is CeNi 3-type single-phase structure. The magnetic measurements indicate that the compound is ferromagnetic and undergoes a second-order phase transition at 62 K. The maximum of magnetic entropy change reaches 11 J/kg K for the field change from 0 to 50 kOe and the refrigerant capacity of the titled compound is found to be 4.8×102 J/kg.

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