Grain-Size Effect on the Magnetocaloric Properties of the DyCo_{3}B_{2} Compound

• Authors: T. Toliński , K. Synoradzki
• Languages of publication: EN

Abstracts

EN

The compound DyCo_{3}B_{2} has been recently found to show a significant magnetocaloric effect (MCE) at the ferromagnetic ordering temperature T_{C}=22 K. In the present study we verify the influence of the mechanical milling, i.e. the grains size effect on the characteristic parameters describing MCE. The grain size has been determined after each milling time by X-ray diffraction. MCE has been extracted from both the isothermal magnetization and the specific heat measurements. It is found that even a long milling does not spoil significantly the MCE parameters and only t_{m}>5 h reduces noticeably the value of the magnetic susceptibility, the isothermal magnetic entropy change and the relative cooling power.

Keywords

EN

71.20.Lp; 75.30.Sg; 75.40.Cx; 81.20.Ev

Discipline

• 71.20.Lp: Intermetallic compounds
• 75.30.Sg: Magnetocaloric effect, magnetic cooling(for cryogenics, see 07.20.Mc)
• 81.20.Ev: Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation
• 75.40.Cx: Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.)

• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 160-161

Dates

published

2014-07

Contributors

author

T. Toliński

• Institute of Molecular Physics, Polish Academy of Sciences, M Smoluchowskiego 17, 60-179 Poznań, Poland

author

K. Synoradzki

• Institute of Molecular Physics, Polish Academy of Sciences, M Smoluchowskiego 17, 60-179 Poznań, Poland

References

• [1] T. Toliński, M. Falkowski, A. Kowalczyk, K. Synoradzki, Solid State Sci. 13, 1865 (2011), doi: 10.1016/j.solidstatesciences.2011.07.020
• [2] L. Li, H. Igawa, K. Nishimura, D. Huo, J. Appl. Phys. 109, 083901 (2011), doi: 10.1063/1.3572060
• [3] A.M. Tishin, Y.I. Spichkin, J.M.D. Coey, D.R. Tilley, D.R. Vij, in The Magnetocaloric Effect and its Applications, Series in Condensed Matter Physics, IOP 2003

Identifiers

DOI

10.12693/APhysPolA.126.160