Laboratory for Theory of Defects in Materials (LTDM)

 

Head:       Ilya Ovid'ko

Staff:         Ivan Archakov
                  Sergey Bobylev
                  Mikhail Gutkin
                  Anna Kolesnikova
                  Alexei Kraevski
                  Yuri Kumzerov
                  Kristina Mikaelyan
                  Anna Reizis
                  Alexander Sheinerman
                  Victor Semkin
                  Yuri Titovets

Students: Evgeni Baturin
                  Alexei Fedorov
                  Nikolai Skiba

The Laboratory for Theory of Defects in Materials focuses its research activity on the following scientific areas:

A. Theory of intergrain and interphase boundaries in nanostructured bulk materials and films.
B. Modeling of the effects of grain boundaries on high-TC superconductivity.
C. Theory of defects and plastic deformation processes in advanced (nanostructured, crystalline, composite, non-crystalline) materials.
 

Current Research Projects:

  1. Theoretical Modelling of Plastic Deformation, Fracture and Fatigue of Nanostructured Materials.
  2. Interface Structure, Diffusion and Related Phenomena in Nanostructured Materials.
  3. Defects, Intergrain and Interphase Boundaries in Nanostructured Metals and Alloys.
  4. Formation and Characterization of Disclination Structures under Extreme Deformation Conditions of Metallic Materials.
  5. The Effect of Grain Boundaries on High Transition Temperature Superconducting Properties of Bi-Sr-Ca-Cu-O (BSCCO)) Materials.


List of Selected Publications in 1999-2002:
 

  1. Monograph: Gutkin M.Yu. and Ovid'ko I.A., Defects and Plasticity Mechanisms in Nanostructured and Non-crystalline Materials (St.Petersburg, Yanus, 2001) (in Russian, koi8)
  2. I.A. Ovid'ko, Relaxation mechanisms in strained nanoislands, Phys.Rev.Lett. 88, N4 (2002) 046103 (1-4), (pdf, 95 Kb)
  3. I.A. Ovid'ko, Deformation of nanostructures, Science 295 (2002) 2386.
  4. I.A. Ovid'ko, Dilatation stresses and transport properties of grain boundaries in high-Tc superconductors, Mater.Sci.Eng. A 313, N1-2 (2001) 207-17 (pdf, 240 Kb)
  5. I.A. Ovid'ko and Sheinerman A.G., Nano-islands on a composite substrate with misfit dislocations, Appl. Phys.A 74, N 2, 2002, 273-7 (pdf, 144 Kb)
  6. I.A. Ovid'ko and Sheinerman A.G., Dislocation dipoles in nano-scale films with compositional inhomogeneities, Philos.Mag.A, 2002, in press.
  7. M.Yu.Gutkin, A.L.Kolesnikova, I.A. Ovid'ko and N.V.Skiba, Rotational deformation mechanism in fine-grained materials, J.Metast.Nanocryst.Mater. 12, 2002, 47-57 (pdf, 448 Kb)
  8. . A.A.Fedorov, M.Yu. Gutkin M.Yu. and I.A. Ovid'ko, Triple junction diffusion and plastic flow in fine-grained materials, Scr.Mater., 2002, in press
  9. M.Yu.Gutkin, I.A. Ovid'ko and N.V.Skiba, Transformations of grain boundaries due to disclination motion and emission of dislocation pairs, Mater.Sci.Eng.A, 2002, in press.
  10. Ovid'ko I.A., Effects of misfit stresses on high-Tc superconductivity in thin-film cuprates, J.Phys.: Condens.Matter 13, N 4, 2001, L97-103 (pdf, 86 Kb)
  11. Gutkin M.Yu. and Ovid'ko I.A., Transformations of low-angle tilt boundaries in high-Tc superconductors, Phys. Rev. B 63, 2001, 64515 (1-9) (pdf, 120 Kb)
  12. S.V.Bobylev, I.A.Ovid'ko, A.G.Sheinerman, Effects of misfit stresses on the structure and transport properties of grain boundaries in high-Tc superconducting films, Phys.Rev.B 64, N 22, 2001, 224507. (pdf, 128 Kb)
  13. M.Yu.Gutkin, K.N.Mikaelyan, V.E.Verijenko, Heterogeneous nucleation of martensite near free surface // Acta mater. 49, No.18, 2001, 3811-3819.
  14. M.Yu.Gutkin, K.N.Mikaelyan, V.E.Verijenko, Dislocation-disclination model of heterogeneous nucleation of HCP-martensite // Scripta mater. 45, No.8, 2001, 939-45.
  15. A.G.Sheinerman, M.Yu.Gutkin, Misfit dislocations in a hollow cylindrical film grown on a hole surface // Scripta mater. 45, 2001, No.1, p.81-87.
  16. A.G.Sheinerman, M.Yu.Gutkin, Misfit disclinations and dislocation walls in a two-phase cylindrical composite // Phys. stat. sol. (a) 184, No.2, 2001, 485-505.
  17. I.A. Ovid'ko, A.G.Sheinerman, Nano-wires associated with compositional inhomogeneities in multilayered films, J.Phys.: Condens.Matter. 13, 2001, 9645-53 (pdf, 160 Kb)
  18. I.A. Ovid'ko I.A., A.G.Sheinerman, Misfit dislocations in multilayered films on disclinated substrates, J.Phys.: Condens.Matter. 13, N35, 2001, 7937-51 (pdf, 168 Kb)
  19. M.Yu.Gutkin, I.A. Ovid'ko, C.S.Pande, Theoretical models of plastic deformation processes in nanocrystalline materials, Rev.Adv.Mater.Sci. 2, N 1, 2001, 80-102 (pdf, 224 Kb)
  20. Gutkin M.Yu., Mikaelyan K.N. and Ovid'ko I.A., Generation and evolution of partial misfit dislocations and stacking faults in thin-film heterostructures, Phys. Sol. State 43, N1, 2001, 42-6 (pdf, 128 Kb)
  21. Ovid'ko I.A and Reizis A.B., Grain boundary dislocation climb and diffusion in nanocrystalline solids, Phys. Sol. State 43, N1, 2001, 35-8 (pdf, 112 Kb)
  22. I.A. Ovid'ko I.A., A.G. Sheinerman, Dislocation dipoles in nanocrystalline films, J.Nanosci.Nanotechnol. 1 , N2, 2001, 215-20.
  23. M.D. Baro, Yu.R. Kolobov, I.A. Ovid'ko, H.-E. Schaefer, B.B. Straumal, R.Z. Valiev, I.V. Alexandrov, M. Ivanov, K. Reimann, A.B. Reizis, S. Surinach, A.P. Zhilyaev, Diffusion and related phenomena in bulk nanostructured materials, Rev.Adv.Mater.Sci. 2, N1, 2001, 1-43 (pdf, 808 Kb)
  24. I.A. Ovid'ko, Physical mechanisms of reduction of critical current density across grain boundaries in high-Tc superconductors, Mater.Phys.Mech. 3, N1, 2001, 108-112 (pdf, 57 Kb)
  25. A.L. Kolesnikova, I.A. Ovid'ko and A.E. Romanov, Misfit disclination structures in nanocrystalline films, Solid State Phenomena, 2002, vol. 87, p.265-276.
  26. Ovid'ko I.A. and Sheinerman A.G., Nano-islands on plastically deformed substrates with disclinations, Mater. Phys. Mech. 2, N1, 2000, 25-30 (pdf, 216 Kb)
  27. Baskov D.Yu, Gutkin M.Yu., Ovid'ko I.A. and Sheinerman A.G., Misfit dislocation walls in multilayered films. Mater. Phys. Mech. 2, N1, 2000, 57-61 (pdf, 128 Kb)
  28. Gutkin M.Yu. and Ovid'ko I.A., Splitting of dislocations in low-angle boundaries in oxide superconductors, Phys. Sol. State 42, N11, 2000, 2000-3
  29. Ovid'ko I.A., Interfaces and misfit defects in nanostructured and polycrystalline films, Rev. Adv. Mater. Sci. 1, 2000, 61-107 (pdf, 296 Kb)
  30. Ovid'ko I.A., Reizis A.B. and R.A.Masumura, Effects of transformations of grain boundary defects on diffusion in nanocrystalline materials. Mater. Phys. Mech. 1, N2, 2000, 103-10. (pdf, 144 Kb)
  31. M.Yu.Gutkin, K.N.Mikaelyan and E.C.Aifantis, Behavior of screw dislocations near phase boundaries in the gradient theory of elasticity // Phys.Sol.State 42 (2000) 1652-8.
  32. M.Yu.Gutkin, K.N.Mikaelyan and E.C.Aifantis, Edge dislocations near phase boundaries in the gradient theory of elasticity // Phys.Sol.State 42 (2000) 1659-67.
  33. M.Yu.Gutkin, Nanoscopics of dislocations and disclinations in gradient elasticity // Rev.Adv.Mater.Sci. 1 (2000) 27-60.
  34. Mikaelyan K.N., Ovid'ko I.A. and Romanov A.E., Disclination-structural-unit model of quasiperiodic tilt boundaries of finite extent, Mater. Sci. Eng. A 288, N1, 2000, 61-5
  35. Kraevskii A.Yu. and Ovid'ko I.A., Effect of stress fields of small-angle tilt grain boundaries on structural inhomogeneities in high-temperature superconductors, Phys. Sol. State 42, N7, 2000, 1218-21
  36. Mikaelyan K.N., Ovid'ko I.A and Romanov A.E., Disclinations at quasiperiodic intergrain tilt boundaries, Fiz. Met. Metalloved. 90, N3, 2000, 16-22 (transl. in The Physics of Metals and Metallography).
  37. Gutkin M.Yu., Ovid'ko I.A. and Sheinerman A.G., Misfit dislocations in wire composite solids, J. Phys.: Condens. Matter 12, N25, 2000, 5391-401 (pdf, 176 Kb)
  38. Kukushkin S.A., Ovid'ko I.A. and Osipov A.V., Critical current in high-temperature superconductors with disordered tilt grain boundaries, Tech. Phys. Lett. 26, N7, 2000, 609-11
  39. Ovid'ko I.A., Interfaces in nanostructured films and coatings. Nanostructured Films and Coatings, NATO Science Ser., ed. by G.-M. Chow, I.A. Ovid'ko and T. Tsakalakos (Kluwer, Dordrecht) 2000, pp. 231-46
  40. I.A.Ovid'ko, Quasiperiodic interfaces and tilt boundaries of finite extent, Mater. Sci. Eng.A 280, N2, 2000, 355-8
  41. R.A. Masumura and I.A. Ovid'ko, Enhanced diffusion near amorphous grain boundaries in nanocrystalline and polycrystalline solids, Mater. Phys. Mech. 1, N1, 2000, 30-7 (pdf, 120 Kb)
  42. Kukushkin S.A., Osipov A.V. and Ovid'ko I.A., Critical current density in polycrystalline high-Tc superconductors with disordered tilt boundaries. Mater. Phys. Mech. 1, N1, 2000, 49-53
  43. I.A.Ovid'ko, Mechanism of anomalous creep of polycrystalline MoSi2 Techn.Phys.Lett. 25, 1999
  44. I.A.Ovid'ko, Interfaces in ceramics, In: Materials Science of Carbides, Nitrides and Borides, NATO ASI Series, edited by Y.G.Gogiotsi and R.A.Andrievskii (Dordrecht, Kluwer, 1999) pp. 133-54
  45. M.Yu.Gutkin and I.A. Ovid'ko, Misfit strains and phase transformations in layered composite solids, J. Phys: Cond. Matter 11, N43, 1999, 8607-16 (pdf, 288 Kb)
  46. M.Yu.Gutkin, and E.C.Aifantis, Dislocations and disclinations in gradient elasticity // Phys.Stat.Solidi (b) 214 (1999) 245-86
  47. M.Yu.Gutkin, and E.C.Aifantis, Dislocations in the theory of gradient elasticity // Scr.Mater. 40 (1999) 559-66.
  48. I.A. Ovid'ko and A.B.Reizis, Irradiation-induced amorphization in split-dislocation cores, Inorganic Materials 35, N4, 1999, 647-8
  49. A.L.Kolesnikova, I.A.Ovid'ko and A.E.Romanov, Transformations of interfaces in nanoamorphous solids, Phys.Sol.State 41, N9, 1999, 1491-3
  50. I.A. Ovid'ko and A.B. Reizis, Effect of elastic distortions on solid-state amorphization at grain boundaries and dislocations, J. Phys. D 32, N22, 1999, 2833-40 (pdf, 160 Kb)
  51. I.A. Ovid'ko, Order and chaos in human feelings, thoughts and actions, Psychological Reports 84, 1999, 87-106
  52. K.N.Mikaelyan, I.A.Ovid'ko and A.E.Romanov, Quasiperiodic tilt boundaries in polycrystalline and nanocrystalline materials: energy and stress fields, Mater.Sci.Eng.A 259, N1, 1999, 132-7
  53. I.A. Ovid'ko, Misfit disclinations at crystal/crystal and crystal/glass interfaces, Phys.Sol.State 41, N9, 1999, 1500 - 5
  54. I.A. Ovid'ko, Misfit disclinations and dislocations at crystal-glass interfaces, Phil. Mag. Lett. 79, N9, 1999, 709-13
  55. I.A. Ovid'ko, Misfit dislocation walls in solid films, J. Phys.: Cond. Matter 11, N34, 1999, 6521-7 (pdf, 112 Kb)

Organizational Activities:

Participation in organization of the following international scientific meetings:
NATO Advanced Study Institute on Nanostructured Materials: Science and Technology 1997
Review Workshop on Nanoparticles and Nanostructures 1997
NATO Advanced Study Institute on Materials Science of Carbides, Nitrides and Borides 1998
ARW 99 Advanced Research Workshop on Nanostructured Films and Coatings 1999
AAIS 99   International Workshop on Applied Aspects of Interface Science 1999
ICMRD 2000 International Workshop on Interface Controlled Materials: Research and Design
STI-2002    TMS Annual Meeting, Seattle, Washington - USA, February 17-21, 2002
nternational Symposium on Science and Technology of Interfaces in Honor of Dr. Bhakta Rath

NATO Advanced Study Institute on Synthesis, Functional Properties and Applications of Nanostructures (Crete, Greece, 2002)
MRS Fall 2002 Symposium: Nanomaterials for Structural Applications (pdf)
(Boston, USA, December 2-6, 2002)

NN2003: the International Conference on "Nanomaterials and Nanotechnologies", Crete, Greece from August 30, 2003 until September 6, 2003
MRS Fall 2003 Symposium NANO: MRS Symposium Q "Mechanical Properties of Nanostructured Materials and Nanocomposites", Boston, USA, December 1-5, 2003 (Call for Papers, pdf;   Guide for Abstract Submission, pdf)


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Last updated  May 17, 2003