Skubenych K. Mechanical properties of superionic conductors with argyrodite structure and composites on their basis

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0421U102493

Thesis Registration Form

0421U102493.pdf

Applicant for

Specialization

  • 01.04.10 - Фізика напівпровідників і діелектриків

12-05-2021

Specialized Academic Board

Д 61.051.01

Essay

The thesis is devoted to the study of mechanical properties of the following substances with argyrodite structure: Cu6PS5X (X = I, Br) superionic crystals, (Cu1-xAgx)7Ge(Si)S(Sе)5I solid solutions, composites and ceramics by methods of micro- and nanoindentation, internal friction, analysis of SEM-images, as well as the influence of laser irradiation in the “in situ” mode. The nanoindentation size effects of Cu6PS5Br (I) single crystals are investigated. Temperature changes of the internal terum Q-1 and the shear modulus G of Cu6PS5Br crystal are investigated, and mechanical hysteresis loops are recorded in the temperature range 100-300 K. It is established that Cu6PS5Br crystal is an non-own ferroelastic. For the first time a photoplastic effect of inverse type was detected in superionic crystals. It is established that giant laser-induced changes of microhardness are observed only in Ag-containing superionic crystals.

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Files

autoreferat-Автореферат Скубенич К.В..pdf

Дисертаційна робота Скубенич К.В_.pdf

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