Sintering kinetics of Ni2FeSb powder alloys produced by mechanical milling

Alvarado-Hernández, F.; Jiménez, O.; González-Castañeda, G.; Hernández, Víctor Hugo Baltazar; Cabezas-Villa, Jose Luis; Albiter, Manuel A.; Vergara–Hernández, Héctor Javier; Olmos, L.

doi:10.1016/s1003-6326(16)64326-1

Cited by 2 publications

(2 citation statements)

References 36 publications

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“…Fig. 1(g) depicts the XRD pattern for Mn/Fe-1 measured at 15 K. Here, the sample has dominated martensite structure with small mixture of austenite phase due to the generated strain in powder sample [35]. The lattice parameters at 320 K and 15 K have been estimated using Le Bail fit of the temperature dependent XRD data and given in table 1.…”

Section: Methodsmentioning

confidence: 99%

Measurement independent magnetocaloric effect in Mn-rich Mn-Fe-Ni-Sn(Sb/In) Heusler alloys

Ghosh

Rawat

Bhattacharyya

et al. 2019

Journal of Magnetism and Magnetic Materials

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We report a systematic study on the magneto-structural transition in Mn-rich Fe-doped Mn-Fe-Ni-Sn(Sb/In) Heusler alloys by keeping the total valence electron concentration (e/a ratio) fixed. The martensitic transition (MT) temperature is found to shift by following a proportional relationship with the e/a ratio of the magnetic elements alone. The magnetic entropy change (ΔS M ) across MT for a selected sample (Mn 49 FeNi 40 Sn 9 In) has been estimated from three different measurement methods (isofield magnetization (M) vs temperature (T), isothermal M vs field (H) and heat capacity (HC) vs T). We observed that though the peak value of ΔS M changes with the measurement methods, the broadened shape of the ΔS M -T curves and the corresponding cooling power (~140 Jkg -1 ) remains invariant. The equivalent adiabatic temperature change (ΔT) ~ -2.6 K has been obtained from indirect measurements of ΔT. Moreover, an exchange bias field ~ 783 Oe at 5 K and a magnetoresistance of -30% are also obtained in one of these materials.

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Section: Methodsmentioning

confidence: 99%

Measurement independent magnetocaloric effect in Mn-rich Mn-Fe-Ni-Sn(Sb/In) Heusler alloys

Ghosh

Rawat

Bhattacharyya

et al. 2019

Journal of Magnetism and Magnetic Materials

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show abstract

“…In the last years, nanostructured materials are experiencing a growing interest because of their fascinating and unique physical properties often superior compared to the bulk materials of similar composition and due to the reduction of the grain size [1] and the large amount of interfaces. These materials present specific physical [2], mechanical [3], electrical [4], and magnetic properties [5]. Hence, new fields of technological application [1] are offered.…”

Section: Introductionmentioning

confidence: 99%

Microstructure Characterization of Nanocrystalline Ni50Ti50 Alloy Prepared Via Mechanical Alloying Method Using the Rietveld Refinement Method Applied to the X-Ray Diffraction

2017

Nanosist. Nanomater. Nanotehnol.

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Using the Rietveld refinement, we analysed the structural evolution of Ni 50 Ti 50 alloy prepared by mechanical alloying method. The elemental Ti and Ni powders are milled during different milling times (0, 1, 3, 6, 24, and 72 hours) in a high-energy planetary ball mill (Pulverisette 7 premium line). The milled powder specimens were characterized with x-ray Philips X,Pert diffractometer equipped with CuK  radiation source ( Cu 0.15418 nm). We refined the structure of compounds using the MAUD program, and we found structural parameters such as the atomic positions (x, y, z), symmetry, and a space group. Moreover, microstructural parameters such as the lattice parameters (a, b, c), the average crystallite size , microstrains  2  1/2 , the average number of compacted layers, and the phase percentages were also determined. According to the results, at the initial stages of milling (typically of 1-3 h), the structure consists of Ni-based solid solution [f.c.c.-Ni (Ti)],

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Sintering kinetics of Ni2FeSb powder alloys produced by mechanical milling

Cited by 2 publications

References 36 publications

Measurement independent magnetocaloric effect in Mn-rich Mn-Fe-Ni-Sn(Sb/In) Heusler alloys

Measurement independent magnetocaloric effect in Mn-rich Mn-Fe-Ni-Sn(Sb/In) Heusler alloys

Microstructure Characterization of Nanocrystalline Ni50Ti50 Alloy Prepared Via Mechanical Alloying Method Using the Rietveld Refinement Method Applied to the X-Ray Diffraction

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