10.18720/MPM.4262019_9
Krasnitckii, S.A.
S.A.
Krasnitckii
ITMO University
Peter the Great St. Petersburg Polytechnic University
Institute of Problems of Mechanical Engineering
Smirnov, A.M.
A.M.
Smirnov
ITMO University
Mynbaev, K.D.
K.D.
Mynbaev
ITMO University
Ioffe Institute
Zhigilei, L.V.
L.V.
Zhigilei
ITMO University
University of Virginia
Gutkin, M.Yu.
M.Yu.
Gutkin
ITMO University
Peter the Great St. Petersburg Polytechnic University
Institute of Problems of Mechanical Engineering
Axial misfit stress relaxation in core-shell nanowires with hexagonal core via nucleation of rectangular prismatic dislocation loops
Peter the Great St. Petersburg Polytechnic University
2019
A theoretical model of axial misfit stress relaxation in core-shell nanowires with
hexagonal cross section of the core through the nucleation of prismatic dislocation loops is
suggested. Different nucleation sites of the loops in core-shell nanowires are considered. The
energy change caused by the loop nucleation is calculated. The critical condition for the onset
of the loops is given and analyzed in detail. The most favorable sites in nanowires and the
optimal loop shape are defined.