Gunko M. Auxetic properties and crystal lattice dynamics of high-, medium- and low-category single crystals

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0416U000281

Thesis Registration Form

0416U000281.pdf

Applicant for

Specialization

  • 01.04.07 - Фізика твердого тіла

18-12-2015

Specialized Academic Board

Д 76.051.01

Essay

The thesis is concerned with a study of the auxetic properties and their relation to anisotropy of elasticity and the basic parameters of crystal lattice dynamics of single crystals of cubic, hexagonal, tetragonal and rhombic systems. In the work, for the first time the indicating auxeticity surfaces have been constructed that show the directions of the negative values of Poisson's ratios. For each of crystal systems the auxeticity types have been classified and the necessary and sufficient conditions for their origination have been obtained. Total correlation is shown to exist between the anisotropy parameters and the auxeticity.

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Files

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