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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 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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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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