On the Mechanism of H-Induced Curie-Point Relaxation in Fe-Based Glassy Alloys

• Authors: S. Balla , J. Kováč , L. Novák , A. Lovas
• Languages of publication: EN

Abstracts

EN

In Fe based glasses not solely the stress-sensitive magnetic properties, but also the amorphous Curie temperature (T_C^{am}) can be altered by hydrogen absorption or due to the low temperature "heat treatments" in liquid N_2 (-196°C). The sign and magnitude of this T_C^{am} shift is strongly compositional dependent, but it is also influenced by the thermal history of glasses (heat treatments). In this paper new experimental results are presented, which were obtained on FeCrB alloys, supporting the previous observations. An attempt of interpretation of the results is also made, which is based on the existence of the quenched-in phase reminiscences, being inherited from the liquid structure.

Keywords

EN

71.23.Cq; 71.55.Jv; 75.50.Kj; 81.40.Rs

Discipline

• 81.40.Rs: Electrical and magnetic properties related to treatment conditions
• 75.50.Kj: Amorphous and quasicrystalline magnetic materials
• 71.55.Jv: Disordered structures; amorphous and glassy solids
• 71.23.Cq: Amorphous semiconductors, metallic glasses, glasses

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 55-59

Dates

published

2008-01

received

2007-07-09

Contributors

author

S. Balla

• Department of Vehicles Manufacturing and Repairing, BUTE, Bertalan L. 2, 1111 Budapest, Hungary

author

J. Kováč

• Inst. of Exp. Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia

author

L. Novák

• Department of Physics, Technical University of Košice, Park Komenského 2, 042 00 Košice, Slovakia

author

A. Lovas

• Department of Vehicles Manufacturing and Repairing, BUTE, Bertalan L. 2, 1111 Budapest, Hungary

References

• 1. A. Inoue, H. S. Chen, T. Masumoto, S. A. Ajuria, Sci. Rep. Inst. Tohoku Univ. , Ser. A 32, 116 (1985)
• 2. L. Novák, A. Lovas, L. F. Kiss, J. Appl. Phys. 98, 043904 (2005)
• 3. L. Novák, K. Bán, J. KováČ, A. Lovas, J. Magn. Magn. Mater. 304, 669 (2006)
• 4. A. Stančáková, L. Kafková, L. Novák, E. Kisdi-Koszó, in: Proc. VI Scientific Conf. , Technical University, Kosice 1992, p. 192
• 5. A. van den Beukel, Key Eng. Mat. 81-83, 3 (1993)
• 6. K. Bán, A. Lovas, L. Novák, K. Csach, Czech. J. Phys. 54, Suppl. D, D137 (2004)
• 7. J. D. Fast, Thermodynamics and Phase Relations, Interaction of Metals and Gases, Vol. 1, Philips Technical Library, Eindhoven 1965, p. 125
• 8. D. Srolovitz, T. Egami, V. Vitek, Phys. Rev. B 24, 6936 (1981)
• 9. D. Jiles, Introduction to Magnetism and Magnetic Materials, St Edmundsburry Press, Bury St Edmunds, Suffolk 1998
• 10. A. Lovas, M. Vázquez, Acta Electrochemica Informatica 2, 86 (2002)
• 11. Ö. Szabó, The Metallography of Iron and Steel Industry in Practice, Technical Press, Budapest 1968, p. 308
• 12. K. Bán, A. Lovas, J. Kováč, Czech. J. Phys. 54, Suppl. D, D141 (2004)
• 13. W. Kauzmann, Chem. Rev. 43, 219 1948)

Identifiers

DOI

10.12693/APhysPolA.113.55