Structural and Thermomagnetic Properties of Fe_{86-x}Zr₇M_xNb₂Cu₁B₄ (M = Co, Ni, (CoCr); x=0 or 6) Amorphous Alloys

• Authors: A. Łukiewska
• Languages of publication: EN

Abstracts

EN

The effect of the substitution of Co, Ni or (CoCr) for the part of Fe atoms on the thermal stability and some magnetic properties, i.e. magnetization and magnetocaloric effect of Fe_{86-x}Zr₇M_xNb₂Cu₁B₄ (M = Co, Ni, (CoCr); x=0 or 6) alloys was investigated. From X-ray studies it was stated that the investigated alloys in the as-quenched state and after the accumulative annealing for 10 min at 600 K and then 700 K were fully amorphous. The amorphous as-quenched Fe₈₀Zr₇Ni₆Nb₂Cu₁B₄ alloy shows the lowest thermal stability and the onset of its crystallization temperature is equal to 775 K. The Arrott plots are almost linear and show positive slope near the Curie temperature. The maximum magnetic entropy change is very sensitive to the chemical composition and annealing conditions of the alloys.

Keywords

EN

65.60.+a; 75.50.Kj; 75.50.Bb; 75.30.Sg

Discipline

• 75.30.Sg: Magnetocaloric effect, magnetic cooling(for cryogenics, see 07.20.Mc)
• 75.50.Kj: Amorphous and quasicrystalline magnetic materials
• 75.50.Bb: Fe and its alloys
• 65.60.+a: Thermal properties of amorphous solids and glasses: heat capacity, thermal expansion, etc.

• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 131
• Issue: 4
• Pages: 738-740

Dates

published

2017-04

Contributors

author

A. Łukiewska

• Institute of Physics, Częstochowa University of Technology, Armii Krajowej 19, 42-200 Częstochowa, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.131.738