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

Zhao, Xupeng; Hsieh, C.C.; Lai, Jiawei; Xinhao, Cheng,; Chang, W.C.; Cui, Weibin; Liu, W.; Zhang, Z.D.

doi:10.1016/j.scriptamat.2010.03.067

Cited by 61 publications

(28 citation statements)

References 21 publications

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“…Aside from the bulk, the ribbon samples of these NiMn-based FSMAs have also attracted increasing attention because rapid quenching by melt spinning is an effective method to synthesize highly textured polycrystalline samples, which can reduce or even avoid the prolonged annealing process [23][24][25][26][27][28][29][30][31][32][33][34]. Ribbons are appropriate MCE materials in practical applications because they can improve the technical characteristics of a refrigeration unit by optimizing the heat transfer between the working body and heat exchange [31].…”

Section: Introductionmentioning

confidence: 99%

“…Ribbons are appropriate MCE materials in practical applications because they can improve the technical characteristics of a refrigeration unit by optimizing the heat transfer between the working body and heat exchange [31]. In addition, annealing with a short time can effectively control the MT and related magnetic and functional properties of Ni-Mn-based ribbons [23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

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Wheel speed-dependent martensitic transformation and magnetocaloric effect in Ni–Co–Mn–Sn ferromagnetic shape memory alloy ribbons

Shih

Liu

et al. 2015

Acta Materialia

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wheel speed-dependent martensitic transformation and magnetocaloric effect in Ni–Co–Mn–Sn ferromagnetic shape memory alloy ribbons

Shih

Liu

et al. 2015

Acta Materialia

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“…This quasidiamagnetism effect has been recently attributed by Prudnikov et al [12] to a strong nonequilibrium of the system due to the presence of magnetic and structural disorders and exchange anisotropy. The origin of this anisotropy is related to the existence of antiferromagnetic interactions, characteristic in the system under study due to the presence of Mn atoms in In-sites, which means that at low temperature, an exchange bias effect should be appreciable and expected [13]. This could be experimentally demonstrated by the exchange shift of the hysteresis loop of the field-cooled sample at low temperature.…”

Section: Methodsmentioning

confidence: 94%

Tailoring of Magnetocaloric Effect in Ni45.5Mn43.0In11.5 Metamagnetic Shape Memory Alloy

Rosa

González

Garcı́a

et al. 2012

Physics Research International

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We investigate the direct and inverse magnetocaloric effect in Ni 45.5 Mn 43.0 In 11.5 Heusler alloy ribbons comparing the results obtained for the as-quenched sample with the ones after different annealing procedures. An enhancement and shift of the entropy maximum to near room temperature is observed in all annealed samples. A remarkable magnetocaloric effect is observed in samples with short-time treatment (10 minutes) and at the lowest annealing temperature. We show that the suppressing of uncompensated martensitic transition and thermal hysteresis are both influenced by the heat treatment. Also, an improvement on Curie's temperature is observed and, at low magnetic field, it has been risen up to 310 K. Our results demonstrate that the martensitic transformation is highly sensitive to the applied magnetic field and also to the annealing treatment, which means that the magnetocaloric effect can be tuned showing different behaviors for each sample.

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“…In the case of Indium (In) containing alloys, a large inverse magnetocaloric effect (IMCE) in polycrystalline state and significant magnetic field induced strain (MFIS) in single crystals have been reported 6,7 . Recently rapid quenching or melt spinning technique was attempted in various systems such as Ni-Fe-Ga, Ni-Mn-Y (Y = In, Al, Sn, and Ga) alloys [8][9][10][11] . The melt spinning technique has the advantage of producing strong textured polycrystalline ribbons.…”

Section: Introductionmentioning

confidence: 99%

Effect of Fe on the Martensitic Transition, Magnetic and Magnetocaloric Properties in Ni-Mn-In Melt-spun Ribbons

Kumar¹,

Rao²,

Muthu³

et al. 2016

Def. Sc. Jl.

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IntroductIonThe Ni-Mn-Y (Y = Ga, In, Sn, and Sb) based ferromagnetic Heusler alloys display first order martensitic transitions from cubic to tetragonal or orthorhombic structure upon cooling. Associated with the martensitic transition observed in these alloys several important functional properties such as shape memory effect, inverse magnetocaloric effect and magnetoresistance have been reported [1][2][3] . The martensitic and magnetic transitions in these alloys are composition dependent as they are highly sensitive to the valence electron concentration per atom (e/a) and Mn-Mn interatomic distances 4,5 . In the case of Indium (In) containing alloys, a large inverse magnetocaloric effect (IMCE) in polycrystalline state and significant magnetic field induced strain (MFIS) in single crystals have been reported 6,7 . Recently rapid quenching or melt spinning technique was attempted in various systems such as Ni-Fe-Ga, Ni-Mn-Y (Y = In, Al, Sn, and Ga) alloys [8][9][10][11] . The melt spinning technique has the advantage of producing strong textured polycrystalline ribbons. In the case of magnetic refrigeration applications the use of refrigerant materials in the form of thin films or ribbons can optimize the heat transfer between the working body and the heat-exchange fluid. Additional advantage of melt spun ribbons is that the thin ribbons reduces the eddy current losses and can be utilised at high frequencies. In the recent past, offstoichiometric Ni-Mn-In ribbons has gained lot of interest due to their intriguing martensitic phase transitions, microstructure, associated magnetic, magnetocaloric properties [12][13][14][15][16][17] . In the present study, off-stoichiometric Ni 47 Mn 40 In 13 ribbon composition which reported a large magnetic entropy change of 32 J/kg-K at RT was chosen and Mn was partially substituted by Fe 18. The objective of this work is to understand the effect of Fe on the martensitic transitions, magnetic and magnetocaloric properties in Ni-Mn-In ribbons. Hence, Ni 47 Mn 40-x Fe x In 13 (x = 1, 2, 3, and 5) ribbons were prepared through melt spinning route and studied. ExpErImEntal WorKFour Ni-Mn(Fe)-In alloys were prepared by arc-melting pure metals in an argon atmosphere. Subsequently they were induction melted in a quartz tube and ejected with a 1 bar pressure difference onto a copper wheel rotating at a surface velocity of 17 m/s. The process was carried out in argon environment. As-quenched ribbons were 1.5 mm -2 mm wide, 5 mm -18 mm long and 40 µm -45 µm thick. As-spun ribbons were annealed at 850 o C for 30 min in vacuum and quenched to room temperature using Argon gas. The crystal structure of the constituent phases were examined using an X-ray diffractometer (PHILIPS3121, Cu-K α λ = 1.54058 Ǻ). The compositions of the ribbons were determined by energy dispersive x-ray spectroscopy (EDX) and were found to be close to the nominal composition. The phase transitions between the martensite and austenite phases were determined by differential scanning calorimetry (DSC) with a cooling/he...

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

Cited by 61 publications

References 21 publications

Wheel speed-dependent martensitic transformation and magnetocaloric effect in Ni–Co–Mn–Sn ferromagnetic shape memory alloy ribbons

Wheel speed-dependent martensitic transformation and magnetocaloric effect in Ni–Co–Mn–Sn ferromagnetic shape memory alloy ribbons

Tailoring of Magnetocaloric Effect in Ni45.5Mn43.0In11.5 Metamagnetic Shape Memory Alloy

Effect of Fe on the Martensitic Transition, Magnetic and Magnetocaloric Properties in Ni-Mn-In Melt-spun Ribbons

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