Technical Physics

, Volume 63, Issue 12, pp 1749–1754 | Cite as

A New Approach to the Justification of the Wolkenstein–Ptitsyn Formula for the Parameter of the Vitrification Equation

  • D. S. SanditovEmail author
  • V. V. Mantatov


An extended interpretation of the Wolkenstein–Ptitsyn formula for temperature band δTg, characterizing a range of transition from liquid to glass, is considered using the Razumovskaya–Bartenev concept. The derivation of this formula proposed by the authors does not depend on the specific type of temperature dependence of relaxation time. For silicate glasses, calculation δTg by this formula agrees with the calculation by the Williams–Landel–Ferry relation and with the left side of glass transition equation qτg = δTg, where q is the cooling rate and τg is relaxation time. Based on the experimental data, the calculation of parameters of the Razumovskaya–Bartenev equation for silicate glasses and amorphous polymers is carried out for the first time.



The authors are grateful to Prof. I.V. Razumovskaya for consultation regarding the derivation of the Razumovskaya–Bartenev equation and discussion of the results.

The study was financially supported by the Ministry of Education and Science of Russian Federation (project no. 3.5406.2017/8.9).


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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  1. 1.Buryat State UniversityUlan-UdeRussia
  2. 2.Institute of Physical Material Science, Siberian Branch, Russian Academy of SciencesUlan-UdeRussia

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