Peculiarities of Magnetic and Magnetocaloric Properties of Fe–Rh Alloys in the Range of Antiferromagnet–Ferromagnet Transition

Gimaev, Radel R.; Vaulin, A. A.; Губкин, А. Ф.; Zverev, V. I.

doi:10.1134/s0031918x20090045

Cited by 30 publications

(17 citation statements)

References 191 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…was close to or lower than that of precious metal alloy Fe49Rh51 (approxim of that prepared by slow cooling and about 13.0 J/kg•K of that pre quenching). However, the Curie temperature of alloy Fe49Rh51 was too K), about 20 K higher than the ambient temperature, which revealed tha prepared also had certain advantages [24].…”

Section: Resultsmentioning

confidence: 93%

“…In addition, compared with similar materials, the maximum|∆S M (T)|of the compounds prepared was close to or lower than that of precious metal alloy Fe 49 Rh 51 (approximately 8.0 J/kg•K of that prepared by slow cooling and about 13.0 J/kg•K of that prepared by rapid quenching). However, the Curie temperature of alloy Fe 49 Rh 51 was too high (about 323 K), about 20 K higher than the ambient temperature, which revealed that the compounds prepared also had certain advantages [24].…”

Section: Discussionmentioning

confidence: 94%

“…This indicates that adding the same amount of Co atoms to La 0.5 Pr 0.5 (Fe 1−x Co x ) 11.4 Si 1.6 would lead to a greater reduction in the second term of the compound in Equation (24) than that of La 0.5 Ce 0.2 (Fe 1−x Co x ) 11.4 Si 1.6 . Thus, it has a stronger effect on slowing down the rising speed of T C increases in La 0.5 Pr 0.5 (Fe 1−x Co x ) 11.4 Si 1.6 .…”

Section: Discussionmentioning

confidence: 98%

“…where Z 2k n Pr ∆nJ(Co − Pr) and Z 2k n Ce ∆nJ(Co − Ce) represent the reduction of the second term in Equation (24) after adding the same amount of Co atoms to the two compounds. In the two kinds of compounds, the content of rare earth element Pr (0.5) is relatively larger than that of Ce (0.…”

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Study on the Magnetocaloric Effect of Room Temperature Magnetic Refrigerant Material La0.5Pr0.5(Fe1−xCox)11.4Si1.6 and the Effect Arising from Co Doping on Its Curie Temperature

et al. 2022

View full text Add to dashboard Cite

The arc-melting method was adopted to prepare the compound La0.5Pr0.5(Fe1−xCox)11.4Si1.6 (x = 0, 0.02, 0.04, 0.06, 0.08), and the magnetocaloric effect of the compound was investigated. As indicated by the powder X-ray diffraction (XRD) results, after receiving 7-day high temperature annealing at 1373 K, all the compounds formed a single-phase cubic NaZn13 crystal structure. As indicated by the magnetic measurement, the most significant magnetic entropy change |∆SM(T)| of the sample decreased from 28.92 J/kg·K to 4.22 J/kg·K with the increase of the Co content under the 0–1.5 T magnetic field, while the Curie temperature TC increased from 185 K to the room temperature 296 K, which indicated that this series of alloys are the room temperature magnetic refrigerant material with practical value. By using the ferromagnetic Curie temperature theory and analyzing the effect of Co doping on the exchange integral of these alloys, the mechanism that the Curie temperature of La0.5Pr0.5(Fe1−xCox)11.4Si1.6 and La0.8Ce0.2(Fe1−xCox)11.4Si1.6 increased with the increase in the Co content was reasonably explained. Accordingly, this paper can provide a theoretical reference for subsequent studies.

show abstract

Section: Resultsmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Study on the Magnetocaloric Effect of Room Temperature Magnetic Refrigerant Material La0.5Pr0.5(Fe1−xCox)11.4Si1.6 and the Effect Arising from Co Doping on Its Curie Temperature

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Therefore, it is worth developing new refrigeration technologies without environmental problems [1,2], such as magnetic refrigeration that is based on the magnetocaloric effect. The development of efficient magnetocaloric materials has become challenging since the discovery of a giant magnetocaloric effect (MCE) near room temperature (RT) in Gd(Ge,Si) 5 , MnAs 1−x Sb x and FeRh based alloys [3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Tuning the Magnetocaloric Properties of the La(Fe,Si)13 Compounds by Chemical Substitution and Light Element Insertion

Paul‐Boncour

Bessaïs

2021

Magnetochemistry

View full text Add to dashboard Cite

LaFe13−xSix compounds exhibit a giant magnetocaloric effect and they are considered as a good magnetocaloric working substance for an environmentally friendly cooling technique. Nevertheless as the Curie temperature TC is around 200 K, it is necessary to tune TC near room temperature for magnetic refrigeration. In this work we present a review of the various methods of synthesis and shaping of the LaFe13−xSix type compounds as well as the influence of chemical substitution, light element insertion or combination of both on TC, magnetic entropy and adiabatic temperature variation (ΔSM and ΔTad), and stability upon cycling. The advantages and drawbacks of each method of preparation and type of element substitution/insertion are discussed. The implementation of these NaZn13 type materials in active magnetic refrigerator is presented and their performances are compared to that of Gd in prototypes.

show abstract

Magnetic phase transition and magnetocaloric effect in amorphous Gd52Fe28B20 alloy

El Ouahbi,

Abouricha,

El Ouahbi

et al. 2024

Appl. Phys. A

View full text Add to dashboard Cite

Peculiarities of Magnetic and Magnetocaloric Properties of Fe–Rh Alloys in the Range of Antiferromagnet–Ferromagnet Transition

Cited by 30 publications

References 191 publications

Study on the Magnetocaloric Effect of Room Temperature Magnetic Refrigerant Material La0.5Pr0.5(Fe1−xCox)11.4Si1.6 and the Effect Arising from Co Doping on Its Curie Temperature

Study on the Magnetocaloric Effect of Room Temperature Magnetic Refrigerant Material La0.5Pr0.5(Fe1−xCox)11.4Si1.6 and the Effect Arising from Co Doping on Its Curie Temperature

Tuning the Magnetocaloric Properties of the La(Fe,Si)13 Compounds by Chemical Substitution and Light Element Insertion

Magnetic phase transition and magnetocaloric effect in amorphous Gd52Fe28B20 alloy

Contact Info

Product

Resources

About