Influence of Al and Ga on Formation of the La(Fe,Si)_{13}-Type Phase in the LaFe_{11.14}Co_{0.66}Si_{1.2-x}M_x (where x=0.1, 0.2, 0.3; M=Al, Ga) Alloys

• Authors: P. Gębara
• Languages of publication: EN

Abstracts

EN

In the present work the influence of Al and Ga on formation of La(Fe,Si)_{13}-type phase in magnetocaloric LaFe_{11.14}Co_{0.66}Si_{1.2-x}M_x (where x=0.1, 0.2, 0.3; M = Al, Ga) alloys subjected to annealing at 1323 K for 15 days was studied using the Mössbauer spectroscopy. For annealed samples, two crystalline phases were recognized: the dominant paramagnetic La(Fe,Si)_{13}-type phase, and minor fraction of ferromagnetic α -Fe(Co,Si). It was revealed that Al improved formation of 1:13 phase in contrast to Ga, which caused reduction of the ability of formation of the expected phase.

Keywords

EN

75.30.Sg; 75.50.Bb

Discipline

• 75.30.Sg: Magnetocaloric effect, magnetic cooling(for cryogenics, see 07.20.Mc)
• 75.50.Bb: Fe and its alloys

• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 129
• Issue: 2
• Pages: 193-196

Dates

published

2016-02

Contributors

author

P. Gębara

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

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Identifiers

DOI

10.12693/APhysPolA.129.193