or
Contacts:
Institute of Applied Physics
5 Academiei str.
Chisinau, MD-2028
MOLDOVA (Rep. of)
phone: +(373) 22 738150
fax: +(373) 22 738149
email: [javascript protected email address]
Laboratory of Mechanical Properties of Materials "Iulia Boiarskaia"
Head of laboratory:
Natalia Kazak
cab. 129
phone : + (373) 22 731736
fax : + (373) 22 738149
email : [javascript protected email address]
Directions of activity
- Study of the mechanical properties (hardness, Young’s modulus, fracture toughness, yield limit, hardenning, etc.) of a wide range of materials (crystalline, polycrystalline, amorphous, polymeric, composite, ceramic, etc.), both bulk and size-limited, under micro/nanoindentation, micro/nanoscratching and uniaxial extention-compression; correlation of the mechanical properties with other physical ones;
- Investigations of the processes and mechanisms of deformation, which take place under micro/nanoindentation and scratching: dislocation sliding, twinning, rotation, densification, phase transition, etc. and application of this knowledge for the study of different physical parameters and phenomena: anizotropy of hardness and fracture, dislocation mobility, scale effect, etc;
- Influence of different factors, intern (structure, dopants, defects) and extern (load, deformation rate, cyclic deformation, temperature, radiation), on the deformation processes and mechanical behavior of materials in macro-, micro- and nano-volumes;
- Using of the micro/nanoindentation and micro/nanoscratching methods for the obtaining of local modified structural, mechanical, electrical and optical properties in the main matrix of material.
The laboratory possesses a range of performant/unique equipment and facilities, some of which are also available to non-IFA researchers. E.g:
2023
- Grabco, D.; Pyrtsac, C.; Sikimaka, O. General Nature of Serration Effect in Crystals and Other Materials Under Indentation. În: IFMBE Proceedings, vol 91. Springer, Cham. Volume 1: Nanotechnologies and Nano-biomaterials for Applications in Medicine. 6th International Conference on Nanotechnologies and Biomedical Engineering, September 20–23, 2023, Chisinau, Moldova , p. 96—105. Doi: 10.1007/978-3-031-42775-6_11.
- Grabco, D.; Shikimaka, O.; Pyrtsac, C.; Topal, D.; Vilotic, D.; Vilotic, M.; Alexandrov, S. Modification of Microstructure and Mechanical Parameters of Austenitic Steel AISI 316L under the Action of Low Friction. Metals. 2023, 13(7), 1278-1—1278-12. Doi: 10.3390/met13071278 (IF: 2,9).
- Grabco, D.; Pyrtsac, C.; Shikimaka, O. Influence of substrate type on deformation specificity of soft film/hard substrate coated systems under nanomicroindentation. Philos Mag. 2023, 103(12), 1146—1176. Doi: 10.1080/14786435.2023.2181995 (IF: 1,948).
- Colibaba, G.V.; Rusnac, D.; Costriucova, N.; Shikimaka, O.; Monaico, E.V. Low-temperature sintering of ZnO:Al ceramics by means of chemical vapor transport. J Mater Sci-Mater El. 2023, 34(2), 82. Doi: 10.1007/s10854-022-09458-1 (IF: 2,779).
- Grabco, D.; Pyrtsac, C.; Shikimaka, O. Plasticity and resistance indices in cu/soft substrate and cu/hard substrate coated systems. Rom J Phys. 2023, 68(1-2), 602-1—602-15 (IF: 1,662).
2022
- Shikimaka, O.; Bivol, M.; Sava, B.A.; Marius, D.; Tardei, Ch.; Sbarcea, B.G.; Grabco, D.; Pyrtsac, C., Topal, D.; Prisacaru, A.; Cobzac, V., Nacu, V.. Hydroxyapatite–bioglass nanocomposites: Structural, mechanical, and biological aspects. Beilstein J Nanotech. 2022, 13, 1490—1504. Doi: 10.3762/bjnano.13.123 (IF: 3,272).
- Grabco, D.; Pyrtsac, C.; Shikimaka, O. Relaxation Parameters of Cu/substrate Type Coated Systems Under Nanoindentation. În: ICNBME 2021, IFMBE Proceedings 87, 2022. 5th International Conference on Nanotechnologies and Biomedical Engineering, November 3–5, 2021, Chisinau, Moldova, p. 55—61. Doi: 10.1007/978-3-030-92328-0_8.
- Colibaba, G.V.; Rusnac, D.; Fedorov, V.; Costriucova, N.; Monaico, E.V.; Potlog, T. Highly Conductive ZnO Thin Films Deposited Using CVT Ceramics as Magnetron Targets. În: ICNBME 2021, IFMBE Proceedings 87, 2022. 5th International Conference on Nanotechnologies and Biomedical Engineering, November 3–5, 2021, Chisinau, Moldova, p. 110—116. Doi: 10.1007/978-3-030-92328-0_15.
- Colibaba, G.V.; Costriucova, N.; Rusnac, D.; Busuioc, S.; Monaico, E.V. Wettability of Highly Conductive ZnO:Ga:Cl CVT Ceramics with Various Ga Content. În: ICNBME 2021, IFMBE Proceedings 87, 2022. 5th International Conference on Nanotechnologies and Biomedical Engineering, November 3–5, 2021, Chisinau, Moldova, p. 610—616. Doi: 10.1007/978-3-030-92328-0_78.
2021
- Grabco, D.; Nicorici, V.; Topal, D.; Pyrtsac, C.; Shikimaka, O. Plastic deformation and microhardness of Pb1-XYbXTe single crystals under quasi-static and sclerometric indentation. Rom J Phys. 2021, 66(9-10), 611-1—611-12. (IF: 1,888).
- Grabco, D.; Pyrtsac, C.; Topal, D.; Shikimaka, O. Effect of friction on the micromechanical properties of AISI 316L austenitic steel. Journal of Engineering Science. 2021, XXVIII(2), 34—43. Doi: 10.52326/jes.utm.2021.28(2).02.
- Morari, V.; Pyrtsac, C.; Curmei, N.; Grabco, D.; Rusu, E.V.; Ursachi, V.V.; Tiginyanu, I.M. Nanoindentation of ZnSnO/Si thin films prepared by aerosol spray pyrolysis. Rom J Phys. 2021, 66(3-4), 603-1—603-18 (IF: 1,197).
- Grabco, D.; Shikimaka, O.; Pyrtsac, C.; Barbos, Z.; Popa, M.; Prisacaru, A.; Vilotic, D.; Vilotic, M.; Alexandrov, S. Microstructures generated in AISI 316L stainless steel by Vickers and Berkovich indentations. Mat Sci Eng A. 2021, 805, 140597. Doi: 10.1016/j.msea.2020.140597 (IF: 4,652).
2020
- Grabco, D.; Shikimaka, O.; Pyrtsac, C.; Barbos, Z.; Popa, M.; Prisacaru, A.; Vilotic, D.; Vilotic, M.; Aleksandrov, S. Nano- and Micromechanical Parameters of AISI 316L Steel. Surf Eng Appl Elect. 2020, 56(6), 719—726. Doi 10.3103/S1068375520060071.
- Grabco, D.; Pyrtsac, K.; Shikimaka, O. The Sensitivity of Dislocation Rosettes to the Shape of a Berkovich Indenter on LiF and MgO Crystals. Phys Solid State. 2020, 62(8), 1386—1393. Doi: 10.1134/S106378342008017X (IF: 0,931).
- Грабко, Д.; Шикимака, О.; Пырцак, К.; Барбос, З.; Попа, М.; Присакару, А.; Вилотич, Д.; Вилотич, М.; Александров, С. Нано- и микромеханические параметры стали AISI 316L. Электронная обработка материалов. 2020, 56(1), 50—58. Doi: 10.5281/zenodo.3640700.
- Grabco, D.Z.; Nicorici, V.Z.; Barbos, Z.A.; Topal, D.; Shikimaka, O.A. Micromechanical Properties and Plastic Deformation Features of the Pb1−xYbxTe Ternary Semiconductors. În: IFMBE Proceedings, V. 77, Springer, 2020, p. 149—153. Doi: 10.1007/978-3-030-31866-6_31.
2019
- Alexandrov, S.; Vilotic, D.; Grabco, D. Using the Upper Bound Technique for Calculating the Strain Rate Intensity Factor. În: Proceedings of the First International Conference on Theoretical, Applied and Experimental Mechanics, ICTAEM 2018. Structural Integrity, vol. 5, Springer Cham., 2019, p. 85—90. Doi: 10.1007/978-3-319-91989-8_15.
- Barbos, Z. Elastoplastic properties under nano-microindentation of phosphate glasses doped with rare-earth ions. Mold J Phys Sci. 2019, 18(1-4), 53—58. ISSN 1810-648X.
- Shikimaka, O.; Prisacaru, A. Deformation mechanisms under nanoscratching of Si: effect of scratching speed, load and indenter orientation. Mater Res Express. 2019, 6(8), 085011-1—085011-10. Doi: 10.1088/2053-1591/ab1a0d (IF: 1,151).
2018
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Alexandrov, S.; Vilotic, D.; Grabco, D. Using the Upper Bound Technique for Calculating the Strain Rate Intensity Factor. În: Gdoutos E. (eds). Proceedings of the First International Conference on Theoretical, Applied and Experimental Mechanics. ICTAEM 2018. Structural Integrity, Springer, vol 5, p. 85—90. Doi: 10.1007/978-3-319-91989-8_15.
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Sava, B.A.; Boroica, L.; Elisa, M.; Shikimaka, O.; Grabco, D.; Popa, M.; Barbos, Z.; Iordanescu, R.; Niculescu, A.M.; Kuncser, V.; Galca, A.C.; Eftimie, M.; Monteiro, R.C.C. Bismuth and lead oxides codoped boron phosphate glasses for Faraday rotators. Ceram Int. 2018, 44(6), 6016—6025. Doi: 10.1016/j.ceramint.2017.12.205 (IF: 2,986).
2017
- Sidiropoulos, A.D.; Harea, E.; Konstantinidis, A.A.; Aifantis, E.C. Pop-in” and “pop-out” effect in monocrystalline silicon. A statistical investigation. J Mech Behav Mater. 2017, 26(1-2), 65—71. Doi: 10.1515/jmbm-2017-0015.
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