Hyperfine Interactions

, Volume 69, Issue 1–4, pp 529–532 | Cite as

Kinetics of the nanocrystalline structure formation

  • I. Brovko
  • P. Petrovič
  • M. Zatroch
  • T. Zemčik
Metals and Alloys

Abstract

The kinetics of the nanocrystalline structure formation in the Fe73.5Cu1Nb3Si22.5−xBx (x=6. 7. 8. 9 at. %) was followed during the annealing runs interrupted between 300 and 700°C.57Fe room temperature Mössbauer spectra were taken and complemented by the electrical resistivity and X-Ray diffraction measurements. It has been found that for the 50 K/min temperature increase the formation of the nanocrystalline phase begins above 450°C reaching a maximum around 500°C and is followed by the second stage of crystallization of the disordered intergranular remainder above ca 600°C accompanied by the changes in the occupation of the iron sites in the crystalline α−Fe−Si phase. Thus gained composition-temperature dependence seems to witness for the inhibiting influence of the substitution of B by Si on the crystallization process.

Keywords

Iron Crystallization Thin Film Electrical Resistivity Structure Formation 

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Copyright information

© J.C. Baltzer A.G., Scientific Publishing Company 1991

Authors and Affiliations

  • I. Brovko
    • 1
  • P. Petrovič
    • 1
  • M. Zatroch
    • 1
  • T. Zemčik
    • 2
  1. 1.Faculty of Science, Department of Experimental Physics námP.J. Šafárik UniversityKošiceCzechoslovakia
  2. 2.Institute of Physical MetallurgyCzechoslovak Academy of SciencesBrnoCzechoslovakia

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