Кафедра "Фізика металів і напівпровідників"

Постійне посилання колекціїhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/4703

Офіційний сайт кафедри http://web.kpi.kharkov.ua/fmp

Від 2002 року кафедра має назву "Фізика металів і напівпровідників", попередня назва – кафедра металофізики.

Кафедра металофізики організована в 1930 році у складі фізико-механічного факультету ХММІ. Деканом факультету був у ті роки видатний вчений-фізик, академік Іван Васильович Обреїмов.

Кафедра входить до складу Навчально-наукового інституту комп'ютерного моделювання, прикладної фізики та математики Національного технічного університету "Харківський політехнічний інститут". За час існування кафедрою підготовлено близько 3000 інженерів, у тому числі і для зарубіжних країн.

У складі науково-педагогічного колективу кафедри працюють: 3 доктора та 2 кандидата фізико-математичних наук; 3 співробітника мають звання професора.

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Oxide films with electret properties as coating for medical implant
(Lviv Polytechnic National University, 2019) Starikov, V. V.
Synthesis and characterisation of nanocrystalline ZrN PVD coatings on AISI 430 stainless steel
(National Science Center "Kharkov Institute of Physics and Technology", 2019) Taran, A. V.; Garkusha, I. E.; Taran, V. S.; Muratov, R. M.; Skoblo, T. S.; Romaniuk, S. P.; Starikov, V. V.; Baturin, A. A.
The nanocrystalline films of zirconium nitride have been synthesized using ion-plasma vacuum-arc deposition technique in combination with high-frequency discharge (RF) on AISI 430 stainless steel at 150oC. Structure examinations X-ray fluorescent analysis (XRF), X-ray diffraction analysis (XRD), scanning electron microscopy (SEM) with microanalysis (EDS), and transmission electron microscopy (TEM), nanoidentation method – were performed to study phase and chemical composition, surface morphology, microstructure and nanohardness of coatings. The developed technology provided low-temperature coatings synthesis, minimized discharge breakdown decreasing formation of macroparticles (MPs) and allowed to deposit ZrN coatings with hardness variation 26.6…31.5 GPa. It was revealed that ZrN single-phase coatings of cubic modification with finecrystalline grains of 20 nm in size were formed.
Anti-corrosion ceramic coatings on the surface of Nd-Fe-B repelling magnets
(National Science Center "Kharkov Institute of Physics and Technology", 2019) Taran, A. V.; Garkusha, I. E.; Taran, V. S.; Timoshenko, O. I.; Misiruk, I. O.; Skoblo, T. S.; Romaniuk, S. P.; Starikov, V. V.; Baturin, A. A.; Nikolaychuk, G. P.; Pyvovar, N. V.; Gnidenko, Yu. P.
The results of vacuum-arc deposition of thin ZrO₂coatings to protect the surface of Nd-Fe-B permanent magnets used as repelling devices in orthodontics are presented. The structure, phase composition and mechanical properties of zirconium dioxide films have been investigated by means of SEM, XRD, EDX, XRF and nanoindentation method. It was revealed the formation of polycrystalline ZrO₂ films of monoclinic modification with average grain size 25 nm. The influence of the ZrO₂ coating in terms of its barrier properties for corrosion in quasi-physiological 0.9 NaCl solution has been studied. Electrochemical measurements indicated good barrier properties of the coating on specimens in the physiological solution environment.
Investigation of diamond biocompatible coatings for medical implants
(Харківський національний університет ім. В. Н. Каразіна, 2015) Starikov, V. V.; Starikova, S. L.
Despite the advantages of diamond-like carbon fi lms that are used as wear-resistant coatings for implants, they may have a number of disadvantages such as the high level of internal tension, low adhesive durability and high sensitivity to environment conditions. These problems can be overcome by application of the new carbon nanocomposite coatings that can be deposited from C60 ionic beam. It was found that the proposed diamond-like nanocomposite coatings increase implant material resistance to electrochemical corrosion processes due to shift of its electrode potential to area of positive values, and also promote a complex of reparative and adaptation and compensatory reorganizations that will allow to accelerate processes of healing and postoperative adaptation of organism in zone of implant inputting.
Stimulation of calcium phosphate crystal formation by implant surfaces with electret properties
(Collegium Basilea & AMSI, 2015) Starikov, V. V.; Starikova, S. L.; Mamalis, A. G.; Lavrynenko, S. N.
Oxide coatings with electret properties are investigated. The possibility of stimulation of the formation of calcium phosphate sediments near the electroactive surface is discussed. The exposure of implants with such coatings to solutions imitating blood plasma showed their high efficiency of biointegration due to activation of an exchange processes in living tissues by a negative superficial charge. The revealed effect amplifies with the growth of the thickness of the anodic oxide film.
Zinc oxide-nickel cermet selective coatings obtained by sequential electrodeposition
(Elsevier, 2015) Klochko, N. P.; Klepikova, K. S.; Tyukhov, I. I.; Myagchenko, Y. O.; Melnychuk, E. E.; Kopach, V. R.; Khrypunov, G. S.; Lyubov, V. M.; Kopach, A. V.; Starikov, V. V.; Kirichenko, M. V.
The investigation of pulse electrodepositing modes influence on crystal structure, morphology and optical properties of ZnO has revealed the conditions in which quasi-one-dimensional (1D) ZnO nanorod arrays are formed as separate nanorods. Due to a sufficiently high resistance of zinc oxide, the electrodeposition of nickel on the fluorine doped tin oxide (FTO)/ZnO surfaces carried out in space between the ZnO nanorods. An incomplete filling of the gaps between nanorods by the nickel nanoparticles through subsequent Ni electrodeposition ensured the creation of ZnO–Ni graded cermets. The cermets, in which electrochemical filling of the spaces between ZnO nanorods by Ni, was performed in the pulse mode. It provided higher absorption of visible and near IR light. It was shown that the manufactured ZnO–Ni graded cermets have high light absorption combined with comparatively low thermal losses, so these cermets are promising cheap and affordable selective coatings for solar heat collectors.
Structure of magnetron hydroxyapatite films with small stoichiometry deviation
(STC "Institute for Single Crystals", 2016) Mikhailov, I. F.; Starikov, V. V.; Baturin, A. A.
Phase composition, coherence lengths and micro-strain level in hydroxyapatite films with controlled deviation from stoichiometry (Ca/P = 1.67) were measured by methods of X-ray diffraction and X-ray fluorescent analysis. It was established that at Ca/P = 1.6±0.03, hydroxyapatite layers with thickness 2m on the niobium substrates were practically single-phase but differed by the coherence lengths and micro-strain levels for different crystallographic directions: the coherence length along was commensurable with the film thickness and much exceeded the values for and directions. The micro-strain level ε for direction reached (1.3÷1.7)·10-3 being by an order higher than for and directions. That testifies constrained growth conditions along with the high homogeneity of the lattice period of the hydroxyapatite film.
Properties of magnetron hydroxyapatite coatings deposited on oxidized substrates
(Collegium Basilea & AMSI, 2016) Starikov, V. V.; Kostuchenko, A. V.; Starikova, S. L.; Mamalis, A. G.; Lavrynenko, S. N.
Hydroxyapatite (HA) coating were formed on oxidized niobium surfaces by the highfrequency magnetron sputtering method using hydroxyapatite and tricalcium phosphate targets. The structure, substructure and mechanical properties of the Nb–Nb2O5–HA system were investigated by X-ray diffraction, atomic force microscopy and nanoindentation and the stress state was assessed. The synthesized hydroxyapatite film had the following characteristics: thermal expansion coefficient 10–5 K–1; modulus of elasticity 120 GPa; adhesive strength not less than 0.45 kg/mm2; density 2900 kg/m3. The stress magnitude in the metal oxide substrate was from 11 to 14 MPa after hydroxyapatite film deposition.
Features of medical implant passivation using anodic oxide films
(Collegium Basilea & AMSI, 2016) Starikov, V. V.; Starikova, S. L.; Mamalis, A. G.; Lavrynenko, S. N.
The passivation ability of metals from groups IV and V of the Periodic Table is considered. Anodic treatment is able to neutralize the increase of metal hardening when comminuting grains to nanometre sizes. The deposition of metal oxide film coatings on a cobalt–chromium alloy surface results in substantial passivation of its surface and prevents cobalt and chromium accumulation in bone tissues. The decrease of surface activity of titanium implants can be achieved both by cleaning the surface during vacuum annealing before oxidation and by the increase of the anodic oxide film thickness, which limits mass and charge transfer through the implant surface. Recommended titanium implant treatment regimens are vacuum annealing at 650 °C and anodic oxidation to attain an oxide thickness less or equal to 300 nm.
Diamond biocompatible coatings for medical implants
(Collegium Basilea & AMSI, 2016) Starikov, V. V.; Starikova, S. L.; Mamalis, A. G.; Lavrynenko, S. N.
New carbon (diamond-like) nanocomposite coatings deposited from a C60 ionic beam can be used as a wear-resistant protective coating for implants. It was found that these coatings enhance resistance to тelectrochemical corrosion processes due to a shift of the material’s electrode potential to a zone of positive values. They also promote a complex of reparative, adaptative and compensatory reorganization that accelerates the healing processes in the vicinity of the implant.