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Competition of primary and eutectic crystals in invariant and univariant reactions

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Abstract

The concept of disperse tie-line is introduced to study the competitive participation of eutectic (small) and primary (large) crystals in phase transitions. The problem of partition of the concentration space, in which the reaction L + I = J + K occurs, into three parts, first of which contains (along with other elements of heterogeneous material microstructure) only large crystals I 1; the second part contains only small crystals I e; and the third part contains a mixture of small and large crystals, I e+I 1, is considered. As a result of the competitive participation of eutectic and primary crystals in the peritectic stage of a univariant three-phase reaction, the concentration space is divided into two fragments that differ in the presence (or absence) of small eutectic crystals.

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Authors and Affiliations

  1. Institute of Physical Materials Science, Siberian Branch, Russian Academy of Sciences, Sakhyanova ul. 6, Ulan-Ude, 670047, Russia

    V. I. Lutsyk & E. R. Nasrulin

Authors
  1. V. I. Lutsyk
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  2. E. R. Nasrulin
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Correspondence to V. I. Lutsyk.

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Lutsyk, V.I., Nasrulin, E.R. Competition of primary and eutectic crystals in invariant and univariant reactions. Crystallogr. Rep. 57, 979–983 (2012). https://doi.org/10.1134/S1063774512070152

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  • DOI: https://doi.org/10.1134/S1063774512070152

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