Institute of Physics of Materials AS CR, v. v. i. > People > Ostapovec Andrej

Mgr. Andrej Ostapovec, Ph.D.

Room421
Phone number+420 532 290 429
E-mail[javascript protected email address]
Researcher IDF-1958-2013
ORCID0000-0002-3781-4716
Positionresearcher - Multiscale Modelling and Measurements of Physical Properties

Scientific interest
  • Atomistic modelling of crystallographic defects in materials: grain boundaries, twin boundaries, dislocations.
  • Mechanisms of plasticity of lightweight metals.

Education
  • 2005-2009: Doctoral degree - University of Chemistry and Technology, Prague, Faculty of Chemical Technology, Metallurgy
  • 2003-2004: Master’s degree - V. N. Karazin Kharkiv National University, Faculty of Physics, Physics
  • 1999-2003: Bachelor’s degree - V. N. Karazin Kharkiv National University, Faculty of Physics, Physics
Work experiences
  • From 2021: Associate editor of „Philosophical Magazine“
  • From 2019: Member of the International Scientific Committee of the "International Conference on Intergranular and Interphase Boundaries in Materials" (IIB)
  • From 2015: Researcher in group of Multiscale Modelling and Measurements of Physical Properties, Institute of Physics of Materials, CAS
  • 2013-2015: Postdoc - Electrical and Magnetic Properties Group, Institute of Physics of Materials, CAS
  • 2009-2015: Postdoc - Department of Metals, Institute of Physics, CAS
  • 2006-2009: Ph.D. Student - Department of Metals, Institute of Physics, CAS
  • 2004-2005: Engineer - Department of Physics of Real Crystals, Institute for Low Temperature Physics and Engineering, Academy of Sciences of Ukraine, Kharkov, Ukraine
  International internships
  • 2021:   Visiting researcher - Centre d'Élaboration de Matériaux et d'Etudes Structurales (CERMES – CNRS), Toulouse, France (3 months)
  • 2013:   Visiting researcher - Universitat Politecnica de Catalunya, Barcelona, Spain (3 months)
  • 2011: Visiting researcher - Fraunhofer IWM Freiburg, Freiburg , Germany (2 months)
  • 2004: Intern - Ruhr-Universität Bochum, Bochum, Germany (1 month)
Awards
  • 2015: Otto Wichterle prize from Czech Academy of Sciences
 


2023

Zelený M., Ostapovec A., Fridrich L., Šesták P., Heczko M., Kruml T.: On mechanical twinning in tetragonal lattice. Philos. Mag. 103 (2023) 119-136

Verma R., Ostapovec A.: On the interaction of migrating {11-26} twin boundary with nucleus of {10-12} twin in Mg at T -> 0 K. Low Temp. Phys. 49 (2023) 1257-1262

Máthis K., Farkas A., Knapek M., Ostapovec A., Farkas G., Németh G., Harcuba P., Drozdenko D.: The influence of gadolinium concentration on the twin propagation rate in magnesium alloys. J. Alloys Comp. 948 (2023) 169635



2022

Ostapovec A., Verma R., Serra A.: Unravelling the nucleation and growth of {1 1 -2 2} twins. Scr. Mater. 215 (2022) 114730

Verma R., Král L., Ostapovec A.: Faceting of {11-26} twin interfaces in rolled pure magnesium. Philos. Mag. 102 (2022) 861-874



2021

Ostapovec A., K. K., Máthis K., Šiška F.: Interaction of Migrating Twin Boundaries with Obstacles in Magnesium. Metals 11 (2021) 154

Pal-Val P., Vatazhuk O., Ostapovec A., Král L., Pinc J.: Thermoactivated Dislocation Motion in Rolled and Extruded Magnesium: Data of the Low-Temperature Acoustic Experiment . Metals 11 (2021) 1647

Kvashin N., Ostapovec A., Anento N., Serra A.: On the migration of {332}<110> tilt grain boundary in bcc metals and further nucleation of {112} twin. Comp. Mater. Sci. 196 (2021) 110509



2020

Ostapovec A., Serra A.: Review of Non-Classical Features of Deformation Twinning in hcp Metals and Their Description by Disconnection Mechanisms . Metals 10 (2020) 1134-1154



2019

Ostapovec A., Serra A., Pond R.: Non-diffusional growth mechanism of I1 basal stacking-faults inside twins in hcp metals. Scr. Mater. 172 (2019) 149-153

Ostapovec A., Gornakova A.: On faceting of {10 -11} and {10-12} twin boundaries in hcp metals. Mater. Lett. 247 (2019) 99-101



2018

Ostapovec A., Paidar V.: Some aspects of double twinning in hexagonal metals. Low Temp. Phys. 44 (2018) 1241-1244

Ostapovec A., Sheikh-Ali A.: Misorientation dependence of atomic structure and energy of symmetric tilt boundaries in magnesium. Philos. Mag. 98 (2018) 3235-3246

Ostapovec A., Vatazhuk O.: Non-Schmid behavior of extended dislocations in computer simulations of magnesium. Comp. Mater. Sci. 142 (2018) 261-267

Ostapovec A., Čapek J., Paidar V.: Secondary twinning in zinc. Philos. Mag. Lett. 98 (2018) 437-445

Káňa T., Ostapovec A., Paidar V.: The matrix-twin transition in a perfect Mg crystal: Ab initio study. Int. J. Plast. 108 (2018) 186-200

Sun Q., Ostapovec A., Zhang X., Tan L., Liu Q.: Investigation of twin-twin interaction in deformed magnesium alloy. Philos. Mag. 98 (2018) 741-751

K. K., Ostapovec A.: Variability of Twin Boundary Structure in Computer Simulations of Tensile Twins in Magnesium. Defect Diffus. Forum 385 (2018) 241-244

Paidar V., Ostapovec A., Káňa T.: Dislocation Content of Non-Classical Twin Boundaries in Hexagonal Metals . Acta Phys. Pol. A 134 (2018) 692-694



2017

Ostapovec A., Serra A.: Slip dislocation and twin nucleation mechanisms in hcp metals. J. Mater. Sci. 52 (2017) 533-540

Paidar V., Ostapovec A.: The balance between the energies of the symmetric (10-12) twin boundaries and asymmetric basal/prismatic interfaces in hcp metals. Mater. Lett. 198 (2017) 93-96

Ostapovec A., Buršík J., Krahula K., Král L., Serra A.: On the relationship between (1 1 -2 2) and (1 1 -2 6) conjugate twins and double extension twins in rolled pure Mg. Philos. Mag. 97 (2017) 1088-1101

Ostapovec A., Vatazhuk O.: Peierls barriers of a-type edge and screw dislocations moving on basal and prismatic planes in magnesium. Low Temp. Phys. 43 (2017) 421-427



2015

Gröger R., Leconte L., Ostapovec A.: Structure and stability of threading edge and screw dislocations in bulk GaN. Comp. Mater. Sci. 99 (2015) 195-202

Ostapovec A., Serra A.: Evolution of Matrix-Twin Interfaces of (1 0 -1 2) Twin in Magnesium. Acta Phys. Pol. A 128 (2015) 661-663

Ostapovec A., Buršík J., Gröger R.: Deformation due to migration of faceted twin boundaries in magnesium and cobalt. Philos. Mag. 95 (2015) 4106-4117



2014

Ostapovec A., Serra A.: Characterization of the matrix-twin interface of a (1012) twin during growth. Philos. Mag. 94 (2014) 2827-2839

Ostapovec A., Gröger R.: Twinning disconnections and basal-prismatic twin boundary in magnesium. Model. Simul. Mater. Sci. Eng. 22 (2014) 025015

Molnár P., Ostapovec A., Jäger A.: Reversible motion of twin boundaries in AZ31 alloy and new design of magnesium alloys as smart materials. Mater. & Design 56 (2014) 509-516

Ostapovec A., Molnár P., Lejček P.: Boundary plane distribution for 13 grain boundaries in magnesium. Mater. Lett. 137 (2014) 102-105

Ostapovec A., Molnár P., Gröger R.: On basal-prismatic twinning interfaces in magnesium. IOP Conf. Ser.: Mater. Sci. Eng. 63 (2014) 012134


Number of ProjectName
8J19UA037 Non-Schmid behavior of dislocations in magnesium and its alloys
16-14599S Mechanisms of plastic deformation and twinning interfaces in hexagonal metals