Mel'nyk T. Intermediate and final stages of impurity segregation at boundaries and pores in solids

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0400U002961

Thesis Registration Form

0400U002961.pdf

Applicant for

Specialization

  • 01.04.07 - Фізика твердого тіла

02-11-2000

Specialized Academic Board

Д 11.184.01

Essay

The thesis contains a theoretical analysis of impurity segregation kinetics at boundaries and pores in solids. The influence of lateral interaction and site competition in a boundary to the rate and momotoneousity of segregation is analysed in details. The main stages of segregation are separated and their duration is evaluated. The opportunity of strong delay of segregation and long-living non-equilibrium surface state formation is proven and their life-time is estimated. The grain size influence to the rate and the number of segregation stages is cleared up. The influence of open and closed porosity to the kinetics of gas release is described in porous solids.

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