Machines. Technologies. Materials.
Vol. 13 (2019), Issue 1, pg(s) 49-52

Debye’s temperature and dimensional border between macro – and nano states

  • 1 Grodno, Belarus, Faculty of Fhysics and Technology1– Yanka Kupala State University of Grodno, Belarus
  • 2 Faculty of Innovative Technologies of Mechanical Engineering – Yanka Kupala State University of Grodno, Belarus
  • 3 University of Ruse – Bulgaria

Abstract

Debye’s temperature θD is the temperature border between areas, CμV(Т) has constant value and, when T<θD, begins to decrease monotonically. θD is the crystal parameter, which allows to calculate the dimensional border between macro- and nanostates. The statement which is found in scientific discussions that θD depends on temperature is incorrect because it contradicts modern crystal-physical theories. The numerical value θD is defined experimentally and is related to the structure of crystals and to the processes taking place in them.

Keywords

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