Structure and magnetocaloric effect of La0.7Ce0.3(Fe0.92Co0.08)11.4Si1.6 bulk alloy prepared by powder metallurgy

Zhong, Xi; Feng, X.L.; Huang, Xiao-Lan; Shen, X. Y.; Liu, Zhongwu

doi:10.1016/j.jallcom.2016.06.259

Cited by 16 publications

(4 citation statements)

References 27 publications

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“…12 The process of melt spinning produces a refined microstructure, increased solute solubility, decreased macro and micro segregation, and the generation of metastable phases which is represented in Figure 12. 95 In melt-spun LaFe 13−x Si x ribbons, the reduction of synthesis time, temperature, and/or field hysteresis is practically overcome, which enables the possibility of quick magnetic cycling without a reduction in efficiency. 96 The melt spinning method may homogenize the microstructure 93 and shorten the formation period of the 1:13 phase, in addition to being effective for grain refinement.…”

Section: Melt Spinningmentioning

confidence: 99%

A Short Review on the Evolution of Magnetocaloric La(Fe,Si)₁₃ and Its Fabrication through Melt Spinning

Vinod,

Arvindha Babu,

Wuppulluri

2024

ACS Omega

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Energy-efficient refrigeration technology needs to advance ineluctably due to rising energy consumption and diminishing fossil fuel and primitive hydrocarbon reserves. Further, the existing gas compression method releases huge amount of chlorofluorocarbons (CFCs) that deplete the ozone layer. This is a global concern, which demands an immediate remedial technology. As a potential solution to the problem of sustainability and a means of meeting the everincreasing demand for energy, environmentally friendly and socially responsible renewable energy sources could serve as an ideal replacement for traditional refrigeration technology. Solid-state refrigeration using magnetocaloric materials is one prominent technique that can be adopted for clean and economical refrigeration or cooling requirements. In this review, we briefly introduce the present understanding on magnetocaloric LaFe 13−x Si x alloys with a specific emphasis on their application in magnetic refrigeration. This paper deals with the advantages and disadvantages of different synthesis methods for producing LaFe 13−x Si x and enhancing its magnetocaloric effects. Annealing time, yield, composition, and relative cooling power are examined as prospective industrial implementation factors for the La(Fe,Si) 13 synthesis process. The initial sections have been devoted to an overview of the magnetocaloric effect and its different types and history. Further, the article reviews the evolution of a new preparation method called melt spinning, other synthesizing methods, and some developments around the world for the prototypes of La(Fe,Si)-based magnetic refrigeration methods. According to the findings in the scholarly literature, the synthesis process of melt spinning has the potential to be commercialized because of its capacity to create huge quantities of La(Fe,Si) 13 with a high purity in a very short amount of time.

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Section: Melt Spinningmentioning

confidence: 99%

A Short Review on the Evolution of Magnetocaloric La(Fe,Si)₁₃ and Its Fabrication through Melt Spinning

Vinod,

Arvindha Babu,

Wuppulluri

2024

ACS Omega

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“…Generally, refrigerants are divided into two types: first‐order magnetic phase transition (FOMT) and second‐order magnetic transition (SOMT) materials. FOMT materials include GdSiGe alloys, LaFeSi alloys, MnFeP alloys, NiMnGa alloys, and so on, which typically possess large values of the magnetic entropy change (−Δ S M ). However, the working temperature range is often narrow, and there is significant magnetic hysteresis due to the structural phase change.…”

Section: Introductionmentioning

confidence: 99%

The Magnetocaloric Composite Designed by Multi‐Gd‐Al‐Co Microwires with Close Performances

Shen

Luo

Xing

et al. 2019

Physica Status Solidi (a)

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A new magnetocaloric composite composed of three types of soft ferromagnetic Gd-based microwires with equal mass ratio and close magnetocaloric performances is designed. The Curie temperatures (T C ) of these three wires are %97, %100, and %101 K, respectively. However, the magnetization versus temperature curve of the composite sample shows almost a single ferromagnetic-paramagnetic transition at %97 K. For a field change of m 0 ΔH ¼ 5 T, the maximum entropy change (ÀΔS max M ) and refrigerant capacity (RC) of this composite are calculated to be %9.98 J kg À1 K À1 and %665 J kg À1 , respectively. There is a good agreement between the calculated ÀΔS M (T) curve and the experimental data, indicating weak magnetic interactions among different wire compositions. Additionally, the calculated universal master curves of the composite and its Gd-Al-Co components are fitted very well, which reveals the second-order type of the magnetic transition for the composite. The designed composite integrates all magnetocaloric properties of its components, suggesting that the Gd-based amorphous wires with close magnetocaloric properties can be designed as an excellent refrigerant for use in active magnetic refrigerators.

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“…A lot of effort has been spent on the synthesis of La(Fe,Si) 13 . The main advantage of powder metallurgy [20][21][22] lies in its flexible gradient compositional control, which is beneficial for broadening the refrigeration temperature window; however, high-temperature annealing is still needed for the diffusion-controlled formation of the La(Fe,Si) 13 (τ 1 ) phase [23]. Although melt spinning could directly produce a high proportion of τ 1 phase during rapid solidification, and the resultant refined grains greatly shorten the post-annealing procedure, it was hard to achieve practical application due to its flake-like shape [24,25].…”

Section: Introductionmentioning

confidence: 99%

Zn and P Alloying Effect in Sub-Rapidly Solidified LaFe11.6Si1.4 Magnetocaloric Plates

Jin

Dai

et al. 2019

Metals

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The occupation mechanism and magnetic transition behavior of trace Zn and P alloying in the sub-rapidly solidified LaFe11.6Si1.4 magnetocaloric plates were investigated. The LaFe11.6Si1.4, LaFe11.6Si1.4Zn0.03, and LaFe11.6Si1.4P0.03 plates were fabricated using the centrifugal casting method in the present work. Experimental results showed that both Zn and P elements were distributed in the La5Si3 and LaFeSi phases during sub-rapid solidification. After annealed at 1373 K for 72 h, the LaFe11.6Si1.4 plate underwent a second-order magnetic transition, while both the LaFe11.6Si1.4Zn0.03 and LaFe11.6Si1.4P0.03 plates underwent a first-order transition. In combination with X-ray diffraction results, it was proposed that both Zn and P atoms prefer to enter the 96i site substituting for FeII/Si atoms according to the density-functional reconstruction of crystallographic structure. The Zn addition led to a slight decrease in magnetic entropy change from 7.0 to 5.9 J/(kg⋅K), while the P addition strikingly enhanced this property to 31.4 J/(kg⋅K) under a magnetic field change of 3 T. The effective refrigeration capacity of the annealed LaFe11.6Si1.4P0.03 plate reached 189.9 J/kg.

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Structure and magnetocaloric effect of La0.7Ce0.3(Fe0.92Co0.08)11.4Si1.6 bulk alloy prepared by powder metallurgy

Cited by 16 publications

References 27 publications

A Short Review on the Evolution of Magnetocaloric La(Fe,Si)₁₃ and Its Fabrication through Melt Spinning

A Short Review on the Evolution of Magnetocaloric La(Fe,Si)₁₃ and Its Fabrication through Melt Spinning

The Magnetocaloric Composite Designed by Multi‐Gd‐Al‐Co Microwires with Close Performances

Zn and P Alloying Effect in Sub-Rapidly Solidified LaFe11.6Si1.4 Magnetocaloric Plates

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Structure and magnetocaloric effect of La0.7Ce0.3(Fe0.92Co0.08)11.4Si1.6 bulk alloy prepared by powder metallurgy

Cited by 16 publications

References 27 publications

A Short Review on the Evolution of Magnetocaloric La(Fe,Si)13 and Its Fabrication through Melt Spinning

A Short Review on the Evolution of Magnetocaloric La(Fe,Si)13 and Its Fabrication through Melt Spinning

The Magnetocaloric Composite Designed by Multi‐Gd‐Al‐Co Microwires with Close Performances

Zn and P Alloying Effect in Sub-Rapidly Solidified LaFe11.6Si1.4 Magnetocaloric Plates

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Product

Resources

About

A Short Review on the Evolution of Magnetocaloric La(Fe,Si)₁₃ and Its Fabrication through Melt Spinning

A Short Review on the Evolution of Magnetocaloric La(Fe,Si)₁₃ and Its Fabrication through Melt Spinning