Tuning of magnetocaloric effect and optimization of scaling factor for Gd 55 Ni 10 Co 35 amorphous microwires
Source abstract
Abstract
Abstract We have investigated the Gd55Ni10Co35 amorphous microwires with a large supercooling temperature range of 132 K in terms of thermally induced microstructural evolution and their magnetocaloric effect (MCE). With the emerging and growth of the nanocrystals against the maintained amorphous matrix, there appears a threshold annealing temperature of 513 K where the Curie temperature (Tc) sees an abrupt increase from 192 K to 212 K as a result of competition between amorphous and crystalline phase. Another effect from these two phases is to conspire to a broadening of working temperature range. The scaling factor n as in ΔSM∝Hn is found to follow a Boltzmann type of dependency on the annealing temperature and can hence serve as an indicator for the desirable microstructure in favor of MCE. All these results demonstrate that the MCE performance of Gd-based amorphous microwires can be formulated via the fine control of microstructure.
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Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Shape Memory Alloy Transformations · Advanced Condensed Matter Physics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (35)
Show source-provided references
1. Magnetische untersuchungen10.1002/andp.18812490510 ↗
2. Review of the magnetocaloric effect in manganite materials10.1016/j.jmmm.2006.07.025 ↗
3. Magnetocaloric materials
4. Developments in magnetocaloric refrigeration10.1088/0022-3727/38/23/R01 ↗
5. Recent developments in magnetocaloric materials10.1088/0034-4885/68/6/R04 ↗
6. The magnetocaloric effect and magnetic refrigeration near room temperature: materials and models10.1146/annurev-matsci-062910-100356 ↗
7. Giant magnetocaloric effect of MnAs[sub 1−x]Sb[sub x]10.1063/1.1419048 ↗
8. Giant magnetocaloric effect in Gd5(Si2Ge2)10.1103/PhysRevLett.78.4494 ↗
9. Transition-metal-based magnetic refrigerants for room-temperature applications10.1038/415150a ↗
10. Influence of negative lattice expansion and metamagnetic transition on magnetic entropy change in the compound LaFe11.4Si1.610.1063/1.1375836 ↗
11. Novel design of La(Fe,Si)13 alloys towards high magnetic refrigeration performance10.1002/adma.201000177 ↗
12. Magnetocaloric materials with multiple instabilities10.1002/adma.201606144 ↗
13. Magnetocaloric effect in Gd-based bulk metallic glasses10.1063/1.2338770 ↗
14. Magnetocaloric effect in rare earth-based bulk metallic glasses10.1016/j.jallcom.2010.01.125 ↗
15. Amorphous and crystallized (Gd4Co3)100−xBx alloys for magnetic refrigerants working in the vicinity of 200K10.1016/j.jallcom.2012.11.086 ↗
16. Field dependence of the magnetocaloric effect in materials with a second order phase transition: a master curve for the magnetic entropy change,10.1063/1.2399361 ↗
17. Mechanical and magnetocaloric properties of Gd-based amorphous microwires fabricated by melt-extraction10.1016/j.actamat.2012.11.006 ↗
18. Improving mechanical and magnetocaloric responses of amorphous melt-extracted Gd-based microwires via nanocrystallization10.1016/j.jallcom.2016.08.254 ↗
19. Large magnetocaloric effect in Ln0.5Ca0.5MnO3 (Ln=Gd, DY) compounds: conseqence of magnetic precursor effect of rare earth ions10.1016/j.jmmm.2014.09.039 ↗
20. Tunable magnetocaloric effect in Gd-based glassy ribbons10.1063/1.3632983 ↗
21. Enhanced refrigerant capacity in Gd-Al-Co microwires with a biphase nanocrystalline/amorphous structure10.1063/1.4943137 ↗
22. Excellent magnetocaloric properties of melt-extracted Gd-based amorphous microwires10.1063/1.4751038 ↗
23. Enhanced refrigerant capacity in two-phase nanocrystalline/amorphous NdPrFe17 melt-spun ribbons10.1063/1.4879544 ↗
24. Magnetocaloric effect of Gd-based microwires from binary to quaternary system
25. Relative cooling power enhancement in magneto-caloric nanostructured Pr2Fe1710.1088/0022-3727/41/19/192003 ↗
26. Stabilization of metallic supercooled liquid and bulk amorphous alloys10.1016/S1359-6454(99)00300-6 ↗
27. Multiple maxima of GFA in three adjacent eutectics in Zr–Cu–Al alloy system – a metallographic way to pinpoint the best glass forming alloys10.1016/j.actamat.2005.03.012 ↗
28. On a generalised approach to first and second order magnetic transitions10.1016/0031-9163(64)91158-8 ↗
29. Table-like magnetocaloric effect in the Gd-Co-Al alloys with multi-phase structure
30. Magnetic cooling near Curie temperatures above 300 K10.1063/1.333046 ↗
31. Material-based figure of merit for caloric materials10.1063/1.5004173 ↗
32. Green's-Function theory of a disordered Heisenberg Ferromagnet10.1103/PhysRevLett.25.669 ↗
33. Large magnetocaloric effect and enhanced magnetic refrigeration in ternary Gd-based bulk metallic glasses10.1063/1.2836956 ↗
34. Impact of structural disorder on the magnetic ordering and magnetocaloric response of amorphous Gd-based microwires10.1063/1.4864143 ↗
35. Comparative study of the magnetocaloric effect in multiphase GdNiAl alloys: single peak versus table-like profile in magnetic entropy changes10.1016/j.jallcom.2016.04.120 ↗