Dependence of optical, luminescent, and emission properties of carbon nanoparticles on pH of medium


S. A. Kazaryan, V. N. Nevolin, G. G. Kharisov, N. F. Starodubtsev


The effect of the medium’s pH on the optical, luminescent and emission parameters of various types of carbon nanoparticles (CNPs) in aqueous solutions was studied. It was shown that the parameters of the optical absorption (Ab) and photoluminescence (PL) spectra, as well as the magnitude and stability of the quantum yield of emission (QYE), significantly depend on the medium’s pH, the properties of the functional groups (FG) and the carbon cores of CNPs. The main contribution to the change in these parameters of CNPs is made by the FG of the particles. The strongest and most vivid change in the optical and luminescent parameters of all types of CNPs is observed at the pH range of aqueous solutions of 10 – 13 and 0.1 – 3. The CNPs parameters changing  is closely related to the protonation and deprotonation processes of the FG of particles of CNPs – COOH, CNPs – OH and CNPs – NH2 types, as well as to photostimulated processes. With the change of the pH of CNPs medium, in the Ab and PL spectra the growth and the decline of the absorption and emission, the appearance and disappearance of the absorption bands, the change of symmetry and width contours and bathochromic and hypsochromic shift of the absorption and PL bands often were observed. It is shown that the mechanism of the effect of the nitrogen and oxygen heteroatoms of the functional groups on PL and QYE is associated with complex electrons interactions of the unshared pairs of N and O atoms with the p-system of aromatic rings of the CNPs carbon core.


Keywords: luminescence of nanoparticles, fluorescence of nanoparticles, luminescence of quantum dots, carbon nanoparticles, carbon quantum dots, emission quantum yield of the nanoparticles, synthesis of carbon nanoparticles and quantum dots.


DOI: 10.30791/1028-978X-2020-5-5-22

Kazaryan Samvel — Lebedev Physical Institute of Russian Academy of Science (Leninsky prospect 53, 119991, Moscow, Russia), PhD (Phys-Math), head of department, specialist in the field of luminescence of semiconductors, diamonds, nanosized carbons, as well as technology for the synthesis of nanoporous materials and electrochemical supercapacitors. E-mail: skazaryan.fian@gmail.com.


Nevolin Vladimir — Lebedev Physical Institute of Russian Academy of Science (Leninsky prospect 53, 119991, Moscow, Russia), Dr Sci (Phys- Math), professor, assistant to Director for financial and economic affairs and innovation activities, specialist in the field of physics of thin-film structures. E-mail: nevolin@sci.lebedev.ru.


Kharisov Gamir — Lebedev Physical Institute of Russian Academy of Science (Leninsky prospect 53, 119991, Moscow, Russia), leading process engineer, specialist in quantum electronics, semiconductor lasers, optics, nanosized materials technology, and electrochemical supercapacitors. E-mail: xarisow@yandex.ru.


Starodubtsev Nikolai — Lebedev Physical Institute of Russian Academy of Science (Leninsky prospect 53, 119991, Moscow, Russia), PhD (Phys-Math), head of department, specialist in quantum electronics, nanosized materials technology. E-mail: nfstaro@gmail.com.

Reference citing

Kazaryan S.A., Nevolin V.N., Kharisov G.G., Starodubtsev N.F. Issledovanie zavisimosti opticheskih, lyuminescentnyh i emissionnyh svojstv uglerodnyh nanochastic ot pH sredy [Dependence of optical, luminescent, and emission properties of carbon nanoparticles on pH of medium]. Perspektivnye Materialy — Advanced Materials (in Russ), 2020, no. 5, pp. 5 – 22. DOI: 10.30791/1028-978X-2020-5-5-22

Damage and deformation effects in the surface layers
of the copper and copper – gallium alloy under pulse irradiation in plasma focus device


I. V. Borovitskaya, V. A. Gribkov, A. S. Demin, N. A. Yepifanov,
S. V. Latyshev, S. A. Maslyayev, Ye. V. Morozov,
V. N. Pimenov, I. P. Sasinovskaya,
G. G. Bondarenko, A. I. Gaydar, М. Scholz


The results of experiments on the irradiation of copper and Cu-10% Ga alloys (wt. %) by pulsed flows of deuterium plasma (DP) and deuterium ions (DI) carried out in the Plasma Focus (PF) device are presented. The technique of experiments and studies is described. We studied the damage and deformation effects in the surface layers of these materials after irradiation of each of them in two modes. In one case, irradiation was carried out by a pulsed deuterium plasma with a power density qpl = 107 W/cm2 and a pulse duration of tpl = 100 ns. In another case, the pulsed fluxes of deuterium ions simultaneously acted at qi = 108 – 1011 W/cm2, ti = 50 ns and dense deuterium plasma at qpl = 108 – 109 W/cm2, tpl  = 100 ns. Under a less hard irradiation regime (only by plasma flows) the damage to both materials is close to each other: in the melted surface layer (SL) there are a wavy surface, craters, micropores. Under the influence of thermal stresses the plastic deformation was observed in the alloy PS, while in pure copper this process was not observed under this irradiation mode. Damage to both materials in a more hard irradiation regime with the pulsed fluxes of deuterium ions and deuterium plasma is enhanced and accompanied by erosion of the PS and the possibility of re-deposition of micro-particles of the elements included in the composition of the functional materials of the PF chamber onto the irradiated surface. The most significant damage is observed in the PS of the Cu-10% Ga alloy, which in addition to powerful beam-plasma flows also experienced shock-wave action. Under this irradiation regime of the compared materials plastic deformation occurred in the PS of each of them. In pure copper (at q = 108 – 109 W/cm2) the plastic deformation was observed in separate local micro-volumes of PS, and in the copper-gallium alloy at q = 1010 – 1011 W/cm2 this process was implemented for the entire irradiated PS. In this case, plastic deformation was carried out both under the influence of shock-wave mechanical loads and under the influence of thermal stresses.


Keywords: pulsed flows, deuterium plasma, deuterium ions, plasma focus, damage, copper-gallium alloy, plastic deformation.


DOI: 10.30791/1028-978X-2020-5-23-37

 

Borovitskaya Irina — Baikov Institute of Metallurgy and Material Science RAS (49, Leninskii Prospect, Moscow 119334, Russia), PhD, senior research worker. E-mail: symp@imet.ac.ru.


Gribkov Vladimir — Baikov Institute of Metallurgy and Material Science RAS (49 Leninskii Prospect, Moscow 119334, Russia), DrSci (Phys-Math), prof, principal research worker. E-mail: gribkovv@rambler.ru.


Demin Aleksandr — Baikov Institute of Metallurgy and Material Science of RAS (49 Leninskii Prospect, Moscow 119334, Russia), research worker. E-mail: casha@bk.ru.


Epifanov Nikita — Baikov Institute of Metallurgy and Material Science RAS (49 LeninskiiProspect, Moscow 119334, Russia), junior researcher; National Research University Higher School of Economics (20  Myasnitskaya, Moscow 101000, Russia), postgraduate student. E-mail: mophix94@gmail.com.


Latyshev Sergei — Baikov Institute of Metallurgy and Material Science of RAS (49 Leninskii Prospect, Moscow 119334, Russia), PhD, senior research worker; Moscow Technical University of Communications and Informatics (8a, Aviamotornaya Street, Moscow 111024, Russia), associate professor. E-mail:
latyshevsv@rambler.ru.


Maslyaev Sergey — Baikov Institute of Metallurgy and Material Science RAS (49 Leninskii Prospect, Moscow 119334, Russia), PhD, senior research worker. E-mail: maslyaev@mail.ru.


Morozov Evgenii — Baikov Institute of Metallurgy and Material Science of RAS (49 Leninskii Prospect, Moscow 119334, Russia), research worker. E-mail: lieutenant@list.ru.


Pimenov Valeriy — Baikov Institute of Metallurgy and Material Science RAS (49 Leninskii  Prospect, Moscow 119334, Russia), Dr Sci (Phys-Math), head of laboratory. E-mail: pimval@mail.ru.


Sasinovskaya Irina — Baikov Institute of Metallurgy and Material Science RAS (49 Leninskii Prospect, Moscow 119334, Russia), research worker. E-mail address: porfirievna@mail.ru.


Bondarenko Gennadii — National Research University Higher School of Economics (20 Myasnitskaya, Moscow 101000, Russia), Dr Sci (Phys-Math), professor. E-mail: gbondarenko@hse.ru.


Gaidar Anna — Research Institute of Advanced Materials and Technologies (12 Malaya Pionerskaya, Moscow 115054, Russia), PhD, senior research worker.


Scholz Marek — Institute of Nuclear Physics (Radzikowskogo Str.152, 31-342 Krakow, Poland), PhD, specialist in dense magnetized plasma and radiation transfer physics.

Reference citing

Borovitskaya I.V., Gribkov V.A., Demin A.S., Yepifanov N.A., Latyshev S.V., Maslyayev S.A., Morozov Ye.V., Pimenov V.N., Sasinovskaya I.P., Bondarenko G.G., Gaydar A.I., Scholz М. Povrezhdaemost' i deformacionnye effekty v poverhnostnyh sloyah medi i splava sistemy med' – gallij pri impul'snom obluchenii v ustanovke Plazmennyj fokus [Damage and deformation effects in the surface layers of the copper and copper – gallium alloy under pulse irradiation in plasma focus device]. Perspektivnye Materialy — Advanced Materials (in Russ), 2020, no. 5, pp. 23 – 37. DOI: 10.30791/1028-978X-2020-5-23-37

 

Segregation of alloying elements on small-angle
grain boundaries in ferritic-martensitic steels
under ion irradiation


S. V. Rogozhkin, N. A. Iskandarov, A. A. Nikitin,
A. A. Khomich, V. V. Khoroshilov, A. A. Bogachev,
A. A. Lukyanchuk, O. A. Raznitsyn, A. S. Shutov,
T. V. Kulevoy, P. A. Fedin, A. A. Potekhin, A. G. Zaluzhnyi


Segregation of chemical elements was studied in ferritic-martensitic steels RUSFER-EK-181 and ChS-139 — perspective structural materials for fast neutron reactor core. To simulate the radiation effects, Fe ions with an energy of 5.6 MeV at temperatures of 250 – 400 °С to damage doses of ~ 6 dpa and at temperatures of 350 – 450 °С to a damage dose of 30 dpa were used. RUSFER-EK-181 steel was also studied after thermal aging at 450 °С to 5000 h. Z-contrast analysis of the irradiated steels revealed the segregation of alloying elements on dislocations at small-angle tilt and mixed grain boundaries. Atom probe tomography of the ion irradiated ChS-139 steel showed that clusters enriched in Ni, Si and Mn were formed in the on the dislocations, including dislocations of small-angle grain boundaries. Clusters enriched in Si were formed on dislocations in the RUSFER-EK-181 steel. In the aged state of RUSFER-EK-181 steel, segregation of Cr, V, Mn, Si and N was shown at dislocations of the small-angle grain boundary. The calculated misorientation angles of the small-angle grain boundaries were ~ 1 – 3°, and the twist angle of the mixed boundary was ~ 3°.


Keywords: ferritic-martensitic steel, ion irradiation, simulation, radiation damage, hardening, small-angle grain boundary.


DOI: 10.30791/1028-978X-2020-5-38-50

Rogozhkin Sergey — Institute for Theoretical and Experimental Physics named by
A.I. Alikhanov of National Research Centre “Kurchatov Institute” (Moscow, 117218, Bol’shaya Cheremushkinskaya st., 25), head of department, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) ( Moscow, 115409, Kashirskoe shosse, 31), professor, Dr Sci (Phys-Math), specialist in condensed matter physics. E-mail: sergey.rogozhkin@itep.ru, SVRogozhkin@mephi.ru.


Iskandarov Nasib Amirkhan-ogly — Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of National Research Centre “Kurchatov Institute” (Moscow, 117218, Bol’shaya Cheremushkinskaya st., 25), researcher, specialist in ultramicroscopy. E-mail: Iskandarov@itep.ru.


Nikitin Aleksandr — Institute for Theoretical and Experimental Physics named by
A.I. Alikhanov of National Research Centre “Kurchatov Institute” (Moscow, 117218, Bol’shaya Cheremushkinskaya st., 25), PhD (Phys-Math), senior researcher, specialist in ultramicroscopy and materials science. E-mail: aleksandr.nikitin@gmail.com.


Khomich Artem — Institute for Theoretical and Experimental Physics named by
A.I. Alikhanov of National Research Centre “Kurchatov Institute” (Moscow, 117218, Bol’shaya Cheremushkinskaya st., 25), engineer, specialist in atom probe tomography. E-mail:artem.khomich@gmail.com.


Khoroshilov Vasily — Institute for Theoretical and Experimental Physics named by
A.I. Alikhanov of National Research Centre “Kurchatov Institute” (Moscow, 117218, Bol’shaya Cheremushkinskaya st., 25), engineer, specialist in scanning electron microscopy. E-mail: vkhoroshilov@gmail.com.


Bogachev Aleksei — Institute for Theoretical and Experimental Physics named by
A.I. Alikhanov of National Research Centre “Kurchatov Institute” (Moscow, 117218, Bol’shaya Cheremushkinskaya st., 25), researcher, specialist in transmission electron microscopy. E-mail: bogachev@itep.ru.


Lukyanchuk Anton — Institute for Theoretical and Experimental Physics named by
A.I. Alikhanov of National Research Centre “Kurchatov Institute” (Moscow, 117218, Bol’shaya Cheremushkinskaya st., 25), researcher, specialist in atom probe tomography. E-mail: Anton.Lukyanchuk@itep.ru.


Raznitsyn Oleg — Institute for Theoretical and Experimental Physics named by
A.I. Alikhanov of National Research Centre “Kurchatov Institute” (Moscow, 117218, Bol’shaya Cheremushkinskaya st., 25), researcher, specialist in atom probe tomography. E-mail: Oleg.Raznitsyn@itep.ru.


Shutov Anton — Institute for Theoretical and Experimental Physics named by
A.I. Alikhanov of National Research Centre “Kurchatov Institute” (Moscow, 117218, Bol’shaya Cheremushkinskaya st., 25), engineer, specialist in atom probe tomography. E-mail: Anton.Shutov@itep.ru.


Kulevoy Timur — Institute for Theoretical and Experimental Physics named by
A.I. Alikhanov of National Research Centre “Kurchatov Institute” (Moscow, 117218, Bol’shaya Cheremushkinskaya st., 25), PhD (Phys-Math), Deputy director for science at accelerator department, specialist in particle accelerator physics. E-mail: kulevoy@itep.ru.


Fedin Peter — Institute for Theoretical and Experimental Physics named by
A.I. Alikhanov of National Research Centre “Kurchatov Institute” (Moscow, 117218, Bol’shaya Cheremushkinskaya st., 25), engineer, specialist in the field of accelerator physics. E-mail: Fedin-Petr1991@yandex.ru.


Potekhin Alexander — Institute for Theoretical and Experimental Physics named by
A.I. Alikhanov of National Research Centre “Kurchatov Institute” (Moscow, 117218, Bol’shaya Cheremushkinskaya st., 25), engineer; National Research Nuclear University MEPhI (Moscow, 115409, Kashirskoe shosse, 31), magister student, specialist in atom probe tomography data analysis. E-mail: alexbiver@mail.ru.


Zaluzhnyi Alexander — Institute for Theoretical and Experimental Physics named by
A.I. Alikhanov of National Research Centre “Kurchatov Institute” (Moscow, 117218, Bol’shaya Cheremushkinskaya st., 25), scientific adviser of director; National Research Nuclear University MEPhI (Moscow, 115409, Kashirskoe shosse, 31), professor, Dr Sci (Phys-Math), specialist in condensed matter physics. E-mail: zaluzhnyi@mail.ru.

Reference citing

Rogozhkin S.V., Iskandarov N.A., Nikitin A.A., Khomich A.A., Khoroshilov V.V., Bogachev A.A., Lukyanchuk A.A., Raznitsyn O.A., Shutov A.S., Kulevoy T.V., Fedin P.A., Potekhin A.A., Zaluzhnyi A.G. Segregaciya legiruyushchih elementov na malouglovye granicy v ferritno-martensitnyh stalyah pri obluchenii ionami [Segregation of alloying elements on small-angle grain boundaries in ferritic-martensitic steels under ion irradiation]. Perspektivnye Materialy — Advanced Materials (in Russ), 2020, no. 5, pp. 38 – 50. DOI: 10.30791/1028-978X-2020-5-38-50

 

Fabrication of microdispersed tissue-specific
decellularized matrix from porcine articular cartilage


Yu. B. Basok, A. D. Kirillova, A. M. Grigoryev, L. A. Kirsanova,
E. A. Nemets, V. I. Sevastianov


The method for obtaining a microdispersed tissue-specific matrix from decellularized porcine articular cartilage with maintenance of morphological and functional properties of the extracellular matrix and no signs of cytotoxicity was developed. Cartilage particles size distribution in suspension after cryogrinding was determined using the laser diffraction analysis. The range of sizes of the cartilage microparticles obtained demonstrates the possibility of their injection administration (< 220 µm). The combination of stages, including 3 cycles of freezing/thawing (–196 °C/37 °C) followed by treatment with solutions of surface-active substances (surfactant), sodium dodecyl sulfate  and Triton X-100, and DNase, allowed to achieve the complete absence of non-decellularized microparticles. The residual DNA content was 9.11 ± 1.13 ng/mg of tissue. The effectiveness of surfactant washing was assessed by the cytotoxicity of the matrix on human adipose tissue mesenchymal stromal cells (hADSCs) culture. To assess the hemocompatibility of the samples obtained, their hemolytic activity was studied in vitro. The adhesion and proliferation of hADSCs on the matrix surface were studied on 21 days of cultivation. The matrix did not possess hemolytic activity and cytotoxicity on hADSCs. In the samples we observed active hADSCs proliferation on the matrix surface.  The biocompatibility and hemocompatibility of the obtained matrix in vitro show its potential for use in regenerative cartilage medicine.

 

Keywords: matrix, decellularization, microparticles, cartilage tissue.

 

DOI: 10.30791/1028-978X-2020-5-51-60

Basok Yulia — Academician V.I. Shumakov Federal Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation (Moscow, 123182 Sсhukinskaya street, 1), PhD (Biology), senior research fellow, specialist in biomaterials, tissue engineering and regenerative medicine. E-mail:
bjb2005@mail.ru.


Kirillova Aleksandra — Academician V.I.Shumakov Federal Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation (Moscow, 123182 Sсhukinskaya street, 1), PhD student, specialist in biomaterials, tissue engineering and regenerative medicine. E-mail: sashak1994@mail.ru.


Grigor’ev Aleksej — Academician V.I.Shumakov Federal Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation (Moscow, 123182 Sсhukinskaya street, 1), PhD (Biology), senior research fellow, specialist in biomaterials, tissue engineering and regenerative medicine. E-mail:
Bear-38@yandex.ru.


Kirsanova Ljudmila — Academician V.I.Shumakov Federal Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation (Moscow, 123182 Sсhukinskaya street, 1), PhD (Biology), senior research fellow, specialist in histochemical methods and tissue engineering. E-mail: ludochkakirsanova@mail.ru.


Nemets Evgenij — Academician V.I.Shumakov Federal Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation (Moscow, 123182 Sсhukinskaya street, 1), PhD (Biology), leading research fellow, specialist in biomaterials, tissue engineering, development of hemocompatible materials and coatings. E-mail: evgnemets@yandex.ru.


Sevastianov Viktor — Academician V.I. Shumakov Federal Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation (Moscow, 123182 Sсhukinskaya street, 1), professor, Dr Sci (Biology), head of laboratory tissue engineering and delivery systems, specialist in biomaterials, tissue engineering and regenerative medicine, drug delivery systems.
E-mail: viksev@yandex.ru.

Reference citing

Basok Yu.B., Kirillova A.D., Grigoryev A.M., Kirsanova L.A., Nemets E.A., Sevastianov V.I. Poluchenie mikrodispersnogo tkanespecificheskogo decellyulyarizovannogo matriksa iz sustavnogo hryashcha svin'i [Fabrication of microdispersed tissue-specific decellularized matrix from porcine articular cartilage]. Perspektivnye Materialy — Advanced Materials (in Russ), 2020, no. 5, pp. 51 – 60. DOI: 10.30791/1028-978X-2020-5-51-60

 

TiC – Cr3C2 – WC – TiB2 – SiC based cermets


V. I. Kalita, A. A. Radyuk, D. I. Komlev, A. B. Mikhailova,
A. V. Alpatov, T. R. Chueva, N. V. Gamurar, D. D. Titov


The analysis of modern approaches was carried out when choosing compositions of cermets based on TiC carbide and Ni matrix doped with additional carbides Mo, W, Cr, Nb and Ta. The hardness and strength of these cermets increases with the use of additional carbides Mo, W, Cr due to the formation of an annular zone around TiC. The calculated microhardness of carbides in the cermet increases with an increase in their volume fraction and with the use of carbides Mo, W, Cr. Based on the analysis of the literature, TiC – Cr3C2 – WC – TiB2 – SiC – Mo – Ni cermet grades with additional carbon content for plasma coatings were proposed and investigated. Mechanical alloying and liquid phase sintering at temperatures of 950 °C, 1250 °C, and 1450 °C were used to evenly distribute the carbides in the matrix phase at high microhardness values, up to 2438 kgf/mm2 with a load on the indenter of 20 G and 2030 kgf/mm2 with a load on the indenter of 200 G. The maximum values of microhardness were obtained at higher sintering temperatures at which the minimum value of oxygen is fixed due to its interaction with carbon.  From the analysis of modern approaches of cermet compositions, the positive effect of W, Mo and Cr on the organization of a strong compound of titanium carbide with a matrix phase is confirmed, which is confirmed by the calculated microhardness value of TiC carbide with its volume fraction of 77 %. This microhardness is equal to 2906 kgf/mm2 with a load on the indenter 20G, which is close to the hardness TiC, 3200 kgf/mm2. This microhardness is equal to 2145.5 kgf/mm2 with a load on the 200 G indenter. Assumed that the settlement contribution of the strengthening phases to the microhardness of the kermet is defined by formation of a ring zone and volume fraction of the strengthening phases which defines extent of deformation of the strengthening phases in a matrix phase under action an indentorah at measurements of hardness.


Keywords: cermets, titanium carbide, mechanical alloying, liquid phase sintering, ring zone.


DOI: 10.30791/1028-978X-2020-5-61-80

Kalita Vasilii — Baikov Institute of Metallurgy and Material Science RAS (Moscow, 119334, Leninsky Prospect, 49), Dr Sci (Eng), chief scientific officer, specialist in the field of plasma spraying. E-mail: vkalita@imet.ac.ru.


Radiuk Aleksei — Baikov Institute of Metallurgy and Material Science RAS (Moscow, 119334, Leninsky Prospect, 49), junior researcher, specialist in the field of plasma spraying. E-mail: imet-lab25@yandex.ru.


Komlev Dmitry — Baikov Institute of Metallurgy and Material Science RAS (Moscow, 119334, Leninsky Prospect, 49), PhD (Eng), leading researcher, specialist in the field of plasma spraying. E-mail: imet-lab25@yandex.ru.


Mikhajlova Aleksandra — Baikov Institute of Metallurgy and Material Science RAS (Moscow, 119334, Leninsky Prospect, 49), PhD, senior researcher, specialist in the field of X-ray analysis specialist. E-mail: sasham1@mail.ru.


Alpatov Alexander — Baikov Institute of Metallurgy and Material Science RAS (Moscow, 119334, Leninsky Prospect, 49), PhD, senior researcher, specialist in the field of diagnostics of materials for the content of light elements. E-mail: alpat72@mail.ru.

 

Chueva Tat`iana — Baikov Institute of Metallurgy and Material Science RAS (Moscow, 119334, Leninsky Prospect, 49), researcher, specialist in the analysis of nanocrystalline and amorphous alloys. E-mail: chueva.tr@gmail.com.


Gamurar Nadezhda — Baikov Institute of Metallurgy and Material Science RAS (Moscow, 119334, Leninsky Prospect, 49), PhD, senior researcher, specialist in the analysis of nanocrystalline and amorphous alloys. E-mail: kurakova_n@mail.ru.


Titov Dmitrii — Baikov Institute of Metallurgy and Material Science RAS (Moscow, 119334, Leninsky Prospect, 49), PhD, senior researcher, specialist in the field of analysis and technology for the production of ceramic materials. E-mail: mitytitov@gmail.com.

Reference citing

Kalita V.I., Radyuk A.A., Komlev D.I., Mikhailova A.B., Alpatov A.V., Chueva T.R., Gamurar N.V., Titov D.D.  Kermety na osnove TiC – Cr3C2 – WC – TiB2 – SiC [TiC – Cr3C2 – WC – TiB2 – SiC based cermets]. Perspektivnye Materialy — Advanced Materials (in Russ), 2020, no. 5, pp. 61 – 80. DOI: 10.30791/1028-978X-2020-5-61-80

 

Operational characteristics of carbide coatings obtained
by high velocity oxygen fuel spraying


O. Yu. Elagina, A. K. Prygaev, I. V. Volkov


The article presents the results of a study of the properties of carbide coatings that determine their operational reliability. The interrelation of the indicators of porosity, hardness, wear resistance is analyzed and their effect on the corrosion resistance and adhesion of the coating to the steel base is evaluated. The effect of coating porosity on wear resistance under conditions of friction on loose abrasive is considered. Based on the research results, additions to the list of controlled coating parameters are proposed, which can be used in regulatory documents regulating the order and frequency of quality control of products with a carbide surface layer deposited by high velocity oxygen fuel spraying.


Keywords: coatings, high velocity oxygen fuel spraying, adhesion, corrosion resistance, drilling equipment.


DOI: 10.30791/1028-978X-2020-5-81-88

Elagina Oksana — National University of Oil and Gas “Gubkin University” (65, Leninskiy Prospekt, Moscow 119991, Russian Federation), Dr Sci (Eng), professor, head of department, specialist in the field of processes and equipment for the production of protective coatings, welding technologies, materials science (mechanical engineering). E-mail: elaguina@mail.ru.


Prygaev Alexander — National University of Oil and Gas “Gubkin University” (65, Leninskiy Prospekt, Moscow 119991, Russian Federation), PhD, professor, dean of the Faculty, specialist in the field of welding and materials science. E-mail: fim@gubkin.ru.

 

Volkov Igor — National University of Oil and Gas “Gubkin University” (65, Leninskiy Prospekt, Moscow 119991, Russian Federation), PhD, senior research associate, specialist in material testing E-mail: volkov@gubkin.ru.

Reference citing

Elagina O. Yu., Prygaev A. K., Volkov I. V. Ekspluatacionnye harakteristiki tverdosplavnyh pokrytij, poluchennyh metodom vysokoskorostnogo gazoplamennogo napyleniya [Operational characteristics of carbide coatings obtained by high velocity oxygen fuel spraying]. Perspektivnye Materialy — Advanced Materials (in Russ), 2020, no. 5, pp. 81 – 88. DOI: 10.30791/1028-978X-2020-5-81-88

Contacts

© 2020  Intercontact Science Ltd.

Site created in Wix.com

Теl: +7 (499) 135-45-40,
135-44-36

E-mail: pm@imet.ac.ru

Address

49, Leninsky pr., IMET RAS, 119334 Moscow, Russia

Journal Perspektivnye Materialy