Refractories and Industrial Ceramics

, Volume 48, Issue 3, pp 185–188 | Cite as

Specifics of crystallization of highly refractory alloys based on zirconium, yttrium, and erbium oxides

  • A. A. Frolov
  • E. R. Anrievskaya
  • O. A. Kornienko
  • Yu. A. Frolov
Scientific Research and Developments


In production of melted ingots of highly refractory alloys in systems with zirconium, yttrium, and erbium oxides we have identified the phenomenon of an increasing specific volume in the course of primary crystallization under unilateral center-symmetric heating. The positive values of the volume crystallization effect are presumably due to the emergence of point defect complexes in the course of formation of a hexagonal structure in solutions of nonisovalent metals (zirconium and rare-earth elements) oxides.


Specific Volume Gray Cast Iron Focal Zone Ingot Surface Refractory Alloy 
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Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • A. A. Frolov
    • 1
    • 2
  • E. R. Anrievskaya
    • 1
    • 2
  • O. A. Kornienko
    • 1
    • 2
  • Yu. A. Frolov
    • 1
    • 2
  1. 1.I. N. Frantsevich Institute of Science of Materials of the National Academy of Sciences of UkraineUkraine
  2. 2.Institute of Magnetism of the National Academy of Sciences of UkraineUkraine

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