Microstructure and Magnetocaloric Effect by Doping C in La-Fe-Si Ribbons

The melt-spun ribbons of LaFe11.5Si1.5Cx (x = 0, 0.1, 0.2, 0.3) compounds are prepared by the melt fast-quenching method. The doping of C is beneficial to the nucleation and precipitation of the La (Fe, Si)13 phase, which is indicated by the microstructure observation and the elemental analysis. Subsequently, the ribbons of LaFe11.5Si1.5C0.2 are annealed at different times, and the phase composition, the microstructures, and the magnetic properties are investigated. The LaFe11.5Si1.5C0.2 ribbons annealed at 1273 K for 2 h achieved the best magnetic properties, and the maximum isothermal magnetic entropy change with a value of 9.45 J/(kg·K) upon an applied field of 1.5 T at an increased Curie temperature 255 K.

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Large reversible magnetic entropy change in rapidly solidified Ni0.895Cr0.105MnGe1.05 melt-spun ribbons

Intermetallics ◽

10.1016/j.intermet.2018.04.003 ◽

2018 ◽

Vol 97 ◽

pp. 89-94 ◽

Cited By ~ 4

Author(s):

Anil Aryal ◽

Abdiel Quetz ◽

C.F. Sánchez-Valdés ◽

P.J. Ibarra-Gaytán ◽

Sudip Pandey ◽

...

Keyword(s):

Magnetic Entropy Change ◽

Entropy Change ◽

Magnetic Entropy ◽

Melt Spun ◽

Melt Spun Ribbons ◽

Rapidly Solidified

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Large magnetic entropy change in MnNiGe1−xCex melt-spun ribbons with tunable magneto-structural phase transition temperature

Materials Letters ◽

10.1016/j.matlet.2018.12.071 ◽

2019 ◽

Vol 239 ◽

pp. 172-175 ◽

Cited By ~ 1

Author(s):

Junhua You ◽

Yaozu Guo

Keyword(s):

Phase Transition ◽

Transition Temperature ◽

Phase Transition Temperature ◽

Structural Phase Transition ◽

Magnetic Entropy Change ◽

Structural Phase ◽

Entropy Change ◽

Magnetic Entropy ◽

Melt Spun ◽

Melt Spun Ribbons

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Magnetic entropy change and transport properties in Ni45Co5Mn36.6In13.4 melt-spun ribbons

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2012.09.054 ◽

2013 ◽

Vol 549 ◽

pp. 170-174 ◽

Cited By ~ 3

Author(s):

L. Chen ◽

F.X. Hu ◽

J. Wang ◽

L.F. Bao ◽

X.Q. Zheng ◽

...

Keyword(s):

Transport Properties ◽

Magnetic Entropy Change ◽

Entropy Change ◽

Magnetic Entropy ◽

Melt Spun ◽

Melt Spun Ribbons

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Investigating the magnetic entropy change in single-phase Y 2 Fe 17 melt-spun ribbons

Current Applied Physics ◽

10.1016/j.cap.2016.05.013 ◽

2016 ◽

Vol 16 (9) ◽

pp. 963-968 ◽

Cited By ~ 3

Author(s):

J.L. Sánchez Llamazares ◽

Pablo Álvarez-Alonso ◽

C.F. Sánchez-Valdés ◽

P.J. Ibarra-Gaytán ◽

J.A. Blanco ◽

...

Keyword(s):

Single Phase ◽

Magnetic Entropy Change ◽

Entropy Change ◽

Magnetic Entropy ◽

Melt Spun ◽

Melt Spun Ribbons

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Magnetic properties of the non-stoichiometric TbCo2Nix alloys

EPJ Web of Conferences ◽

10.1051/epjconf/201818504021 ◽

2018 ◽

Vol 185 ◽

pp. 04021

Author(s):

Alexander Inishev ◽

Evgeny Gerasimov ◽

Nikolay Mushnikov ◽

Pavel Terentev ◽

Vasily Gaviko

Keyword(s):

Magnetic Properties ◽

Curie Temperature ◽

Concentration Dependence ◽

Magnetic Moment ◽

Magnetic Entropy Change ◽

Entropy Change ◽

Magnetic Entropy ◽

Thermodynamic Relation ◽

Temperature Dependences

The magnetic and magnetothermal properties of the non-stoichiometric TbCo2Nix (0 ≤ x ≤ 0.2) alloys were studied. It was found that the concentration dependence of the Curie temperature and magnetic moment of the 3d-sublattice have a maximum at x = 0.025. The obtained experimental magnetic properties of the TbCo2Nix alloys were discussed under assumption that the Co magnetic moment in the compounds changes with increasing x. The magnetic entropy change was determined using the temperature dependences of the magnetization and Maxwell’s thermodynamic relation. The obtained results for TbCo2Nix were compared with those for the ErCo2Mnx alloys.

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Influence of Co-Doping on Magnetic Properties and Magnetocaloric Effect of Fe–Co–Zr–Cu–B Melt-Spun Ribbons

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2021.19099 ◽

2021 ◽

Vol 21 (4) ◽

pp. 2552-2557

Author(s):

Nguyen Hai Yen ◽

Nguyen Hoang Ha ◽

Pham Thi Thanh ◽

Nguyen Huy Ngoc ◽

Tran Dang Thanh ◽

...

Keyword(s):

Magnetic Properties ◽

Magnetocaloric Effect ◽

Melt Spinning ◽

Room Temperature ◽

Tangential Velocity ◽

Magnetic Behavior ◽

Entropy Change ◽

Co Doping ◽

Melt Spun ◽

Melt Spun Ribbons

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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Effects of annealing on the magnetic entropy change and exchange bias behavior in melt-spun Ni–Mn–In ribbons

Scripta Materialia ◽

10.1016/j.scriptamat.2010.03.067 ◽

2010 ◽

Vol 63 (2) ◽

pp. 250-253 ◽

Cited By ~ 49

Author(s):

X.G. Zhao ◽

C.C. Hsieh ◽

J.H. Lai ◽

X.J. Cheng ◽

W.C. Chang ◽

...

Keyword(s):

Exchange Bias ◽

Magnetic Entropy Change ◽

Entropy Change ◽

Magnetic Entropy ◽

Melt Spun

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Magnetic properties and magnetic entropy change in rare earth-rich aluminium compounds of RE 2 CuAl 3 ( RE = Dy and Tm)

Intermetallics ◽

10.1016/j.intermet.2018.03.006 ◽

2018 ◽

Vol 97 ◽

pp. 8-11

Author(s):

Lijuan Wang ◽

Chenping Bao ◽

Wenlin Gao ◽

Yanguo Pang ◽

Xiangjie Wang ◽

...

Keyword(s):

Magnetic Properties ◽

Rare Earth ◽

Magnetic Entropy Change ◽

Entropy Change ◽

Magnetic Entropy

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Magnetic properties and magnetic entropy change of perovskite manganites La0.9–Eu Sr0.1MnO3 (x=0.000, 0.075) by experimental method and numerical fitting

Journal of Rare Earths ◽

10.1016/j.jre.2018.10.013 ◽

2019 ◽

Vol 37 (6) ◽

pp. 622-627 ◽

Cited By ~ 3

Author(s):

Xiang Jin ◽

Jianjun Zhao ◽

Hongye Wu ◽

Bao Xu ◽

Yunbin Sun ◽

...

Keyword(s):

Magnetic Properties ◽

Experimental Method ◽

Magnetic Entropy Change ◽

Entropy Change ◽

Perovskite Manganites ◽

Magnetic Entropy ◽

Numerical Fitting

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Effect of Crystal Size on the Magnetic Entropy Change in CoCr2O4

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.121-123.889 ◽

2007 ◽

Vol 121-123 ◽

pp. 889-892 ◽

Cited By ~ 3

Author(s):

Shang Dong Li ◽

Zhi Gao Huang ◽

Guo Xia Zhao ◽

Wen Qin Zou ◽

You Liao Zheng ◽

...

Keyword(s):

Magnetic Properties ◽

Size Effect ◽

Magnetic Entropy Change ◽

Crystal Size ◽

Nanocrystalline Material ◽

Bulk Material ◽

Entropy Change ◽

The Other ◽

Magnetic Entropy ◽

Two Samples

The size effect of magnetocaloric effect (MCE) in CoCr2O4 has been investigated by comparing two samples with different crystal sizes. One is bulk CoCr2O4 sample (referred as A), and the other is a nanocrystalline CoCr2O4 sample (referred as B). It has been found that crystal size dramatically affects the magnetic properties and MCE for CoCr2O4, and that the nanocrystalline material is more favorable for application than the bulk material. The above results are explained in terms of the effect of small size and its distribution for sample B on the intrinsic magnetic properties and magnetic entropy change.

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