Startseite Effects of Fe-doping on structural, magnetic and magnetocaloric properties of the intermetallic compound Gd7Pd3-xFex
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Effects of Fe-doping on structural, magnetic and magnetocaloric properties of the intermetallic compound Gd7Pd3-xFex

  • Jianjun Huo , Yusong Du , Gang Cheng , Xiaofei Wu , Lei Ma , Jiang Wang , Zhengcai Xia und Guanghui Rao
Veröffentlicht/Copyright: 30. Mai 2018
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 109 Heft 6

Abstract

The structural, magnetic and magnetocaloric properties of Gd7Pd3-xFex compounds with x = 0, 0.2 and 0.4 were investigated. Rietveld refinement of X-ray powder diffraction shows that all the investigated samples are single phase and crystallize in a hexagonal structure with the space group P63mc. The lattice parameters (a, b and c), and the cell volume (v) decrease with the increase of Fe content in Gd7Pd3-xFex, mainly because of the difference in atomic radius between Fe and Pd. Magnetization versus temperature in a magnetic applied field of 0.05 T shows that Gd7Pd3-xFex displays a paramagnetic (PM) – ferromagnetic (FM) transition with the Curie temperature TC decreasing from 336 K for x = 0.0 to 319 K for x = 0.4. Under a field change of 0 to 5 T, the maximum values of the magnetic entropy change (|ΔSMmax|) are 5.09 J kg−1 K−1, 4.89 J kg−1 K−1, and 4.46 J kg−1 for x = 0, 0.2, and 0.4, and the corresponding relative cooling powers (RCP) amount to 387.6 J Kg−1, 357.2 J · Kg−1, and 385.5 J Kg−1, respectively. The stable magnetocaloric effect and refrigeration capacity near room temperature reveal that the Gd7Pd3-xFex compounds may be considered as refrigerants for magnetic refrigeration.

Keywords: X-ray diffraction; Curie temperature; Magnetocaloric effect; Magnetic refrigeration material
*Correspondence address, Yusong Du and Xiaofei Wu, School of Materials Science and EngineeringGuilin University of Electronic Technology of Mechanical Engineering, Guilin, Guangxi 541004, P.R. China, Tel.: +86-0773-2291434, Fax: +86-0773-2290129, E-mail: (Y.S. Du); (X.F. Wu)

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Received: 2017-12-12
Accepted: 2018-01-25
Published Online: 2018-05-30
Published in Print: 2018-06-12

© 2018, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Microstructural characterization of dynamic recrystallization in hot deformed LDX2101
  5. Influence of the carbon content on the microstructure and properties of heat-resistant cast steels
  6. Study of the effects produced by ultrasonic vibration on AISI 1045 steel surface: surface residual stress and surface 3D morphology
  7. Effects of Co content on microwave absorbing properties of Dy–Ni powder
  8. Modelling, simulation and optimisation of pulse-reverse regime of copper, silver and gold electrodeposition
  9. Effect of various ratios of nitric acid – chloride on electronic properties of passive films on AISI 304L stainless steel
  10. Effects of Fe-doping on structural, magnetic and magnetocaloric properties of the intermetallic compound Gd7Pd3-xFex
  11. The influence of FAC particle size on the damping capacity and dynamic Young's modulus of AZ91D/FAC composites at high temperature
  12. Characterization of A356 aluminum matrix composite affected by SiC particle size and extrusion parameters
  13. Hydrothermal synthesis of superparamagnetic zinc–nickel ferrite nanoparticles
  14. Inflorescence type morphology and mirror–mist–hackle pattern in tensile fractograph of MWCNT/PBT nano-composites
  15. Short Communications
  16. Binary diffusion behaviour in Ti–X (X = Al, Mo, V, Cr, Fe) alloys
  17. Regulation of the microstructural and optical properties of bismuth ferrite nanowires by mineralizer concentration
  18. People
  19. Manfred Rühle on the occasion of his 80th birthday
  20. DGM News
  21. DGM News
https://doi.org/10.3139/146.111635
Schlagwörter für diesen Artikel
X-ray diffraction; Curie temperature; Magnetocaloric effect; Magnetic refrigeration material

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Microstructural characterization of dynamic recrystallization in hot deformed LDX2101
  5. Influence of the carbon content on the microstructure and properties of heat-resistant cast steels
  6. Study of the effects produced by ultrasonic vibration on AISI 1045 steel surface: surface residual stress and surface 3D morphology
  7. Effects of Co content on microwave absorbing properties of Dy–Ni powder
  8. Modelling, simulation and optimisation of pulse-reverse regime of copper, silver and gold electrodeposition
  9. Effect of various ratios of nitric acid – chloride on electronic properties of passive films on AISI 304L stainless steel
  10. Effects of Fe-doping on structural, magnetic and magnetocaloric properties of the intermetallic compound Gd7Pd3-xFex
  11. The influence of FAC particle size on the damping capacity and dynamic Young's modulus of AZ91D/FAC composites at high temperature
  12. Characterization of A356 aluminum matrix composite affected by SiC particle size and extrusion parameters
  13. Hydrothermal synthesis of superparamagnetic zinc–nickel ferrite nanoparticles
  14. Inflorescence type morphology and mirror–mist–hackle pattern in tensile fractograph of MWCNT/PBT nano-composites
  15. Short Communications
  16. Binary diffusion behaviour in Ti–X (X = Al, Mo, V, Cr, Fe) alloys
  17. Regulation of the microstructural and optical properties of bismuth ferrite nanowires by mineralizer concentration
  18. People
  19. Manfred Rühle on the occasion of his 80th birthday
  20. DGM News
  21. DGM News
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