A. L. Kolesnikova

ITMO University

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АЕ

А. Е. Романов

ITMO University

M. Yu. Gutkin

Institute of Problems of Mechanical Engineering

АЕ

А. Е. Романов

ITMO University

I. A. Ovid’ko

Institute of Problems of Mechanical Engineering

V. V. Chaldyshev

Ioffe Institute

МР

М.А. Рожков

ITMO University

S.A. Krasnitckii

ITMO University

НА

Н. А. Берт

Ioffe Institute

Leonid Dorogin

ITMO University

Elias C. Aifantis

Aristotle University of Thessaloniki

Cooperative Institutions

ITMO University

Russian Academy of Sciences

Physico-Technical Institute

Ioffe Institute

Institute of Problems of Mechanical Engineering

Peter the Great St. Petersburg Polytechnic University

St Petersburg University

University of Tartu

Togliatti State University

University of California, Santa Barbara

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Formation of mismatched layers in pentagonal nanorods

physica status solidi (RRL) - Rapid Research Letters (2007)

A. L. Kolesnikova А. Е. Романов

Abstract A new mechanism is presented to model the relaxation phenomena in pentagonal nanorods (PNRs) – elongated multiple twinned crystals. It is demonstrated that a shell possessing crystal mismatch with respect to the PNR core region will reduce the internal energy of the PNR associated with wedge disclinations of strength 7°20′ lying along the PNR axis. We predict the existence of an optimal magnitude for core/shell crystal lattice mismatch and an optimal shell thickness providing maximum energy release for this mechanism of mechanical stress relaxation. The considered relaxation mechanism can be realized by the diffusion of impurities in the shell region without change of the PNR radius or by growth of a thin mismatched shell layer with the corresponding thickening of PNR. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Nanorod

Wedge (geometry)

Critical radius

Crystal (programming language)

Perfect crystal

Lattice (music)

10.1002/pssr.200701204

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Citations (16)

Stress relaxation in icosahedral small particles via generation of circular prismatic dislocation loops

Scripta Materialia (2015)

M. Yu. Gutkin A. L. Kolesnikova S.A. Krasnitckii Leonid Dorogin V.S. Serebryakova

Particle (ecology)

Critical radius

Stress relaxation

10.1016/j.scriptamat.2015.04.015

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Citations (14)

Misfit dislocation loops in hollow core–shell nanoparticles

Scripta Materialia (2014)

M. Yu. Gutkin A. L. Kolesnikova S.A. Krasnitckii А. Е. Романов A.G. Shalkovskii

Elasticity

10.1016/j.scriptamat.2014.03.005

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Citations (28)

RELAXATION PHENOMENA IN DISCLINATED MICROCRYSTALS

А. Е. Романов A. L. Kolesnikova I. S. Yasnikov А. А. Викарчук M. V. Dorogov

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Citations (2)

Generation of dislocation loops in strained quantum dots embedded in a heterolayer

Physics of the Solid State (2004)

A. L. Kolesnikova А. Е. Романов

Lattice (music)

10.1134/1.1799180

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Citations (7)

Disclinations in nanocrystalline materials: Manifestation of the relay mechanism of plastic deformation

Materials Science and Engineering A (2008)

А. Е. Романов A. L. Kolesnikova I. A. Ovid’ko Elias C. Aifantis

Disclination

Nanocrystalline material

Deformation mechanism

Grain boundary strengthening

Grain Boundary Sliding

10.1016/j.msea.2008.05.053

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Citations (22)

Identification of disclinations in the structure of strongly deformed materialsIdentification de désinclinaisons dans la structure des matériaux fortement déformés

Annales de Chimie Science des Matériaux (2002)

V. Klemm P. Klimanek A. L. Kolesnikova Mikhailo Motylenko Alexei E. Romanov

The deformation of metallic materials up to large strains leads to the formation of fine grain structures (down to the nanometric scale) with high densities of grain boundaries and grain boundary junctions. Such structures demonstrate significant lattice rotations and the presence of disclination defects at grain boundary junctions. We present the results of transmission electron microscopy (TEM) observations of disclinations in strongly deformed metals and describe the theoretical approaches for their identification.

Disclination

Lattice (music)

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Citations (0)

Modernization or New Engineering: Models of Leadership in the Global Civil Aviation Market

Springer eBooks (2021)

A. L. Kolesnikova Julia A. Kovalchuk

10.1007/978-3-030-63974-7_6

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Citations (1)

Misfit stresses and their relaxation by misfit dislocation loops in core-shell nanoparticles with truncated spherical cores