PERSPEKTIVNYE MATERIALY
2023, No.10
Verification of a two-dimensional model
of the experiment of attenuation
of neutron and photon radiation of a nuclear reactor
by a radiation-protective metal hydride composite
R. N. Yastrebinsky, G. G. Bondarenko, V. I. Pavlenko,
A. V. Yastrebinskaya, A. I. Gorodov
The paper presents experimental studies of the attenuation of neutron and photon radiation of a nuclear reactor by a radiation-protective metal hydride composite, as well as the distribution of dose and spatial-energy characteristics of primary and secondary gamma radiation in the material. It is shown that the formation of the gamma radiation dose rate behind the protection is due to the capture gamma quanta formed in the initial layer of the material. Based on the results of the reactor protective properties of the material, the verification of the computational model of the experiment in two-dimensional geometry by the method of discrete ordinates according to the DORT program was carried out. The deviations between the calculated and experimental values of the relaxation lengths for fast neutrons were no more than 5 %, for gamma radiation no more than 7 %, which confirms the validity of the calculation methods used and the possibility of using the data obtained with a high degree of reliability when designing the geometry of the radiation protection of a reactor made of metal hydride composite
Keywords:titanium hydride, composite, nuclear reactor, neutron radiation, gamma radiation, energy distribution, calculation model, verification.
DOI: 10.30791/1028-978X-2023-10-5-16
Yarshbsinsky Roman — Shoukhov Belgorod State Technological University (308012, Belgorod, Kostyukova street, 46), Dr Sci (Eng), Director of the Chemical Institute of Technology, a specialist in the field of physics of condensed media, radiation materials, physical and colloid chemistry. E-mail: yrndo@mail.ru.
Bondarenko Gennady — National Research University Higher School of Economics Moscow Institute of Electronics and mathematicians A.N. Tikhonova (123458, Moscow, Tallinskaya st., 34) Doctor of Physical and Mathematical Sciences, Professor, Specialist in the field of physics condensed media, radiation materials, physicochemical properties of substances. E-mail: bondarenko_gg@rambler.ru.
Pavlenko Vyacheslav —Shoukhov Belgorod State Technological University (308012, Belgorod, Kostyukova street, 46), Dr Sci (Eng), Head of the Department of Theoretical and Applied Chemistry, a specialist in the field of physics of condensed media, radiation materials, physical and colloid chemistry. E-mail: belpavlenko@mail.ru.
Yastrebinskaya Anna — Shoukhov Belgorod State Technological University (308012, Belgorod, Kostyukova street, 46), Dr Sci (Eng), candidate of technical sciences, associate professor, specialist in the field of condensed matter physics, radiation materials science, labor protection. E-mail: karanna1@mail.ru.
Gorodov Andrey — Shoukhov Belgorod State Technological University (308012, Belgorod, Kostyukova street, 46), Dr Sci (Eng), PhD (Eng), associate Professor, specialist in the field of physics and chemistry of condensed media. E-mail: gorodov-andreyy@mail.ru.
Yastrebinsky R.N., Bondarenko G.G., Pavlenko V.I., Yastrebinskaya A.V., Gorodov A.I. Verifikaciya dvuhmernoj modeli eksperimenta oslableniya nejtronnogo i fotonnogo izlucheniya yadernogo reaktora radiacionno-zashchitnym metallogidridnym kompozitom [Verification of a two-dimensional model of the experiment of attenuation of neutron and photon radiation of a nuclear reactor by a radiation-protective metal hydride composite].Perspektivnye Materialy [Advanced Materials] (in Russ), 2023, no. 10, pp. 5 – 16. DOI: 10.30791/1028-978X-2023-10-5-16
Influence of fillers on the structure of silaxane films
A. S. Baikin, E. O. Nasakina, A. A. Melnikova,
A. V. Mikhailova, M. A. Kaplan, K. V. Sergienko,
S. V. Konushkin, A. G. Kolmakov, M. A. Sevostyanov
The influence of fillers on the structures of siloxane films was studied. Three variants of fillers are considered: ethyl alcohol, chitosan and sodium bicarbonate with its subsequent removal. It is shown that the use of alcohol leads to a change in the surface structure and the formation of numerous pores-»pits». The use of sodium bicarbonate or chitazan makes it possible to create developed networks of pores intersecting with each other and having access to the surface. The possibility of controlling the thickness of porous layers by changing the concentration of the introduced filler is shown. It is concluded that the studied variants of the modification of the structure of siloxane films open up wide opportunities for creating drug delivery systems or other active agents, including controlled prolonged action.
Keywords: siloxane, chitosan, ethyl alcohol, sodium bicarbonate, structure, polymer films.
DOI: 10.30791/1028-978X-2023-10-17-25
Baikin Alexander — Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences (Moscow, 119334, Leninsky Prospekt, 49), PhD, researcher, specialist in physics, chemistry and materials science. E-mail: baikinas@mail.ru.
Nasakina Elena — Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences (Moscow, 119334, Leninsky Prospekt, 49), PhD, senior researcher, specialist in physics, chemistry and materials science. E-mail: nacakina@mail.ru.
Melnikova Alexandra — Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences (Moscow, 119334, Leninsky Prospekt, 49); All-Russian Research Institute of Phytopathology (143050, Moscow Region, Odintsovsky District, r.p. Bolshie Vyazemy, st. Institute, property 5), senior laboratory assistant, research interests: physics, chemistry and materials science. E-mail: alsomiller@gmail.com.
Mikhailova Anna — Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences (Moscow, 119334, Leninsky Prospekt, 49), senior laboratory assistant, research interests: physics, chemistry and materials science. E-mail: mikhannavlad@gmail.com.
Kaplan Mikhail — Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences (Moscow, 119334, Leninsky Prospekt, 49), PhD, junior researcher, specialist in chemistry and materials science. E-mail: misha279@yandex.ru.
Sergienko Konstantin — Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences (Moscow, 119334, Leninsky Prospekt, 49), junior researcher, specialist in chemistry and materials science. E-mail: shulf@yandex.ru
Konushkin Sergey — Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences (Moscow, 119334, Leninsky Prospekt, 49), PhD, researcher, specialist in chemistry and materials science. E-mail: venev.55@mail.ru.
Kolmakov Alexey — Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences (Moscow, 119334, Leninsky Prospekt, 49), Dr Sci (Eng), corresponding member of the Russian Academy of Sciences, head of laboratory, specialist in chemistry and materials science. E-mail: imetranlab10@mail.ru.
Sevostyanov Mikhail — Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences (Moscow, 119334, Leninsky Prospekt, 49); All-Russian Research Institute of Phytopathology (143050, Moscow Region, Odintsovsky District, r.p. Bolshie Vyazemy, st. Institute, property 5), PhD, leading researcher, specialist in chemistry and materials science. E-mail: cmakp@mail.ru.
Baikin A.S., Nasakina E.O., Melnikova A.A., Mikhailova A.V., Kaplan M.A., Sergienko K.V., Konushkin S.V., Kolmakov A.G., Sevostyanov M.A. Vliyanie napolnitelej na strukturu siloksanovyh plenok [Influence of fillers on the structure of silaxane films]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2023, no. 10, pp. 17 – 25. DOI: 10.30791/1028-978X-2023-10-17-25
Obtaining and studying the properties
of composites based on isotactic polypropylene
with nickel-containing nanofillers
N. I. Kurbanova, C. K. Ragimova, T. M. Guliyeva,
E. G. Isgandarova
The effect of nickel nanoparticles stabilized by a polyethylene matrix on the physical-mechanical and thermal properties of nanocomposites based on isotactic polypropylene (PP) was studied by X-ray phase (XRD) and differential thermal (DTA) analyzes. An improvement in the strength and deformation parameters, as well as the thermal-oxidative stability of the obtained nanocomposites apparently associated with the effect of interfacial interaction of nickel-containing nanoparticles with the polymer matrix. It has been shown that PP-based nanocomposites can be processed both by pressing and by injection molding and extrusion. Small amounts of nanofiller introduced into the polymer play the role of structure-forming agents — artificial nuclei of crystallization, which contributes to the formation of a small-spherolite structure in the polymer, characterized by improved physical, mechanical and thermal properties of the obtained nanocomposite.
Keywords: nickel oxide nanoparticles; nanocomposites; isotactic polypropylene; physical-mechanical and thermal properties; XRD and DTA analyzes.
DOI: 10.30791/1028-978X-2023-10-26-32
Kurbanova Nushaba Ismail gizi —Institute of Polymer Materials of Ministry of Science and Education Republic of Azerbaijan (Az5004, Sumgait, Azerbaijan, S.Vurgun Str, 124), Dr.Sci. (Chem), head of laboratory, specialist in the field of development of composition materials and also nanocomposites on the basis of elastomers and thermoplasts and their binary mixtures. E-mail: ipoma@science.az; kurbanova.nushaba@mail.ru.
Ragimova Sevinj Kazim gizi —Institute of Polymer Materials of Ministry of Science and Education Republic of Azerbaijan (Az5004, Sumgait, Azerbaijan, S.Vurgun Str, 124), dissertant, specialist in the field of development of composition materials. E-mail: ipoma@science.az.
Gulieva Turkan Mushvig gizi —Institute of Polymer Materials of Ministry of Science and Education Republic of Azerbaijan (Az5004, Sumgait, Azerbaijan, S.Vurgun Str, 124), junior researcher, specialist in the field of development of composition materials. E-mail:
ipoma@science.az.
Isgadarova Esfira Gudrat gizi —Institute of Polymer Materials of Ministry of Science and Education Republic of Azerbaijan (Az5004, Sumgait, Azerbaijan, S.Vurgun Str, 124), engineer, specialist in the field of development of composition materials. E-mail: ipoma@science.az.
Kurbanova N.I., Ragimova C.K., Guliyeva T.M., Isgandarova E.G. Svojstva kompozitov na osnove izotakticheskogo polipropilena s nikel'soderzhashchimi nanonapolnitelyami [Obtaining and studying the properties of composites based on isotactic polypropylene with nickel-containing nanofillers]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2023, no. 10, pp. 26 – 32. DOI: 10.30791/1028-978X-2023-10-26-32
Magnetic properties of glasses synthesized
from rocks of different genesis
E. S. Sergienko, P. V. Kharitonskii, A. Yu. Ralin
The structural-phase, chemical composition and magnetic properties of artificial glasses obtained by high-temperature melting of rock mixtures of different genesis: volcanogenic-sedimentary rocks, quartzitic shales, psamite-silt-pelitic complexes were studied. Different in duration cooling and glass transition conditions were used for glass synthesis. The magnetic state of the iron-containing phase and the analysis of the presence and contribution of iron oxides to the magnetic properties were assumed to be the characteristic criterion determining the parameters of the glass formation process. It was shown that the total iron content in artificial glasses depends exclusively on the composition of the initial charge. In this case, the iron-containing component is mainly determined by sedimentary rocks. The formation of magnetic minerals is determined both by the composition of the charge and by the rate of cooling of the melt. During “fast” cooling, the formed magnetic particles are mostly (up to 90% or more of the total content of the magnetic phase in the sample) in a superparamagnetic state. During “slow” cooling, a mixture of particles of different sizes and, accordingly, in different magnetic states is formed: from superparamagnetic to low-domagnetic. The ferrimagnetic phase crystallizing in artificial glasses is represented by chemically heterogeneous aggregates of iron oxides, mainly non-stoichiometric magnetite.
Keywords:artificial glasses, high-temperature melting, magnetic hysteresis, superparamagnetism, modeling of magnetic states.
DOI: 10.30791/1028-978X-2023-10-33-43
Sergienko Elena — St. Petersburg University (Russia, 199034, St. Petersburg, Universitetskaya emb., 7 – 9). PhD, associate professor, specialist in physics of magnetic phenomena, rock magnetism, petrophysics, paleomagnetism. E-mail: e.sergienko@spbu.ru.
Kharitonskii Peter — St. Petersburg State Electrotechnical University “LETI” (5, Liter. F, Popov St., Petersburg 197022). PhD, professor, specialist in physics of magnetic phenomena, rock magnetism, petrophysics, paleomagnetism. E-mail: peterkh@yandex.ru.
Ralin Andrey — Far Eastern Federal University (690922, Vladivostok, Russkiy Island. Russkiy, 10, Ajax), PhD, associate professor, specialist in physics of magnetic phenomena, rock magnetism, petrophysics. E-mail: ralin.ayu@dvfu.ru.
Sergienko E.S., Kharitonskii P.V., Ralin A.Yu. Magnitnye svojstva stekol, sintezirovannyh na osnove gornyh porod razlichnogo genezis [Magnetic properties of glasses synthesized from rocks of different genesis]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2023, no. 10, pp. 33 – 43. DOI: 10.30791/1028-978X-2023-10-33-43
Physical and mechanical properties
of ceramics based on Si3N4 of various
dispersion with 3 % Y2O3 – Al2O3
P. V. Andreev, P. D. Drozhilkin, L. S. Alekseeva, K. E. Smetanina,
G. V. Scherbak, A. A. Popov, M. S. Boldin
This article focuses on the process of producing ceramics based on the commercial Si3N4powder of the various dispersions
(< 5 μm and < 1 μm) by spark plasma sintering (SPS). The powder mixtures of 97 wt. % Si3N4 + 3 wt. % additives of the Y2O3– Al2O3 composition were synthesized by the Pechini method. The SPS technology was used to obtain the ceramic samples of diam. 20 mm. Sintering was carried out in a vacuum at the heating rate of 50 °C/min and the load of 70 MPa until the shrinkage end. The microstructure and the phase composition of the ceramic samples were investigated. Mechanical properties were measured: Vickers hardness, Palmquist fracture toughness, flexural strength according to the B3B (Ballon-Three-Balls-Test) method. Tribological tests were also carried out. It was established that the lower the dispersion of the powder mixtures based on Si3N4, the lower the shrinkage end temperature. The relative density achieved is 96 %. The ceramics based on Si3N4powder with the dispersion of <1 µm are difficult to machine, characterized by the hardness of 19.0 ± 0.7 GPa and the crack resistance of 5.1 ± 0.4 MPa·m1/2. The flexural strength of the ceramics evaluated by the B3B method depends on the dispersion of Si3N4powder and is more than 2 times higher for the ceramics based on the commercial Si3N4 powder with the dispersion of <1 μm.
Keywords: silicon nitride, ceramics, spark plasma sintering, microhardness, fracture toughness, B3B, flexural strength, tribology.
DOI: 10.30791/1028-978X-2023-10-44-57
Andreev Pavel — Physical and Technical Research Institution of Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin Avenue, 23/3), candidate of Physics and Mathematics, senior researcher, specialist in crystallography and methods of X-ray diffraction analysis. E-mail: andreev@phys.unn.ru.
Drozhilkin Pavel — Physical and Technical Research Institution of Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin Avenue, 23/3), laboratory assistant, postgraduate student, specialist in methods of X-ray phase analysis. E-mail: drozhilkin@nifti.unn.ru
Alekseeva Lyudmila — Physical and Technical Research Institution of Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin Avenue, 23/3), senior researcher, specialist in chemical synthesis of nanopowders. E-mail: golovkina_lyudmila@mail.ru.
Smetanina Ksenia — Physical and Technical Research Institution of Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin Avenue, 23/3), laboratory assistant, postgraduate student, specialist in methods of X-ray phase analysis. E-mail: smetanina@nifti.unn.ru.
Shcherbak Gleb — Physical and Technical Research Institution of Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin Avenue, 23/3), laboratory assistant, graduate student, specialist in measuring the physical and mechanical properties of ceramics. E-mail: scherbak@nifti.unn.ru.
Popov Alexander —Physical and Technical Research Institution of Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin Avenue, 23/3), senior researcher, specialist in measuring the physical and mechanical properties of ceramics. E-mail: popov@nifti.unn.ru.
Boldin Maxim — Physical and Technical Research Institution of Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin Avenue, 23/3), candidate of Physics and Mathematics, researcher, specialist in spark plasma sintering of metals, ceramics and hard alloys. E-mail: boldin@nifti.unn.ru.
Andreev P.V., Drozhilkin P.D., Alekseeva L.S., Smetanina K.E., Scherbak G.V., Popov A.A., Boldin M.S. Fiziko-mekhanicheskie svojstva keramiki na osnove Si3N4 razlichnoj dispersnosti s 3 mass. % Y2O3 – Al2O3 [Physical and mechanical properties of ceramics based on Si3N4 of various dispersion with 3 % Y2O3 – Al2O3]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2023, no. 10, pp. 44 – 57. DOI: 10.30791/1028-978X-2023-10-44-57
Structural changes in hydroxyapatite plasma
coatings depending on the plasma power
V. F. Shamray, V. I. Kalita, V. P. Sirotinkin,
D. I. Komlev, A. S. Gordeev,
A. A. Radyuk, K. Yu. Demin, V. S. Komlev
The structure of hydroxyapatite (HA) plasma coatings obtained by changing the power of the plasma torch (P) from 20 to 26 kW was studied by X-ray diffraction analysis. All coatings contained the decomposition products of hydroxyapatite in the plasma flow, phases of tetracalcium phosphate (TTCP) and CaO. Their number, which increases with increasing P and plasma temperature (Tp), is determined by the partial loss of phosphorus by the initial HA powder in plasma and the shift in the chemical composition of the coating to higher calcium contents. An increase in Pand Tp is accompanied by an increase in the intensity of the HA basic texture. In the range of 24 < P < 26 kW, the intensity ratio of X-ray reflections HA δ = I(200)/I(211) exceeds 3.0 in its value, while at P = 20 kW δ <1.5. The presence of orientation relationships between the predominant crystallographic orientations of HA and TTCP crystals in coatings is associated with the similarity of their structures, the proximity of lattice periods, and the presence of identical fragments in their structures. The possibility of the formation of mixed-layer structures involving these compounds is discussed. The following factors are considered as the factors that have the greatest influence on the nature of the dependences obtained: the substrate temperature, the particle size in the initial HA powder, and the composition of the plasma gases.
Key words:hydroxyapatite plasma coatings, microstructure, X-ray Rietveld method, texture.
DOI: 10.30791/1028-978X-2023-10-58-67
Shamray Vladimir — Baikov Institute of Metallurgy and Material Science RAS (119334, Moscow, Leninsky Prospect, 49), Dr. Sci. (Phys-Math), chief researcher, specialist in the field of crystal structural research. E-mail: shamray@imet.ac.ru.
Kalita Vasilii — Baikov Institute of Metallurgy and Material Science RAS (119334, Moscow, Leninsky Prospect, 49), Dr. Sci/ (Eng), chief researcher, specialist in the field of plasma spraying. E-mail: vkalita@imet.ac.ru.
Sirotinkin Vladimir — Baikov Institute of Metallurgy and Material Science RAS (119334, Moscow, Leninsky Prospect, 49), PhD, leading researcher, specialist in the field of crystal structural research. E-mail: sir@imet.ac.ru.
Komlev Dmitrii — Baikov Institute of Metallurgy and Material Science RAS (119334, Moscow, Leninsky Prospect, 49), PhD, leading researcher, specialist in the field of plasma spraying. E-mail: imet-lab25@yandex.ru.
Gordeev Alexander — Baikov Institute of Metallurgy and Material Science RAS (119334, Moscow, Leninsky Prospect, 49), PhD, researcher, specialist in the field of crystal structural research. E-mail: gordeevgas@imet.ac.ru.
Radiuk Aleksei — Baikov Institute of Metallurgy and Material Science RAS (119334, Moscow, Leninsky Prospect, 49), Ph.D., researcher, specialist in the field of plasma spraying. E-mail: imet-lab25@yandex.ru.
Demin Konstantin — Baikov Institute of Metallurgy and Material Science RAS (119334, Moscow, Leninsky Prospect, 49), PhD, senior researcher, specialist in material structure analysis. E-mail: dkx@yandex.ru.
Komlev Vladimir — Baikov Institute of Metallurgy and Material Science RAS (119334, Moscow, Leninsky Prospect, 49), corresponding member RAS, Dr Sci (Eng), director of the institute, a specialist in the field of bioceramic materials E-mail: komlev@mail.ru.
Shamray V.F., Kalita V.I., Sirotinkin V.P., Komlev D.I., Gordeev A.S., Radyuk A.A., Demin K.Yu., Komlev V.S. Strukturnye izmeneniya plazmennyh pokrytij gidroksiapatita v zavisimosti ot moshchnosti plazmy [Structural changes in hydroxyapatite plasma coatings depending on the plasma power]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2023, no. 10, pp. 58 – 67. DOI: 10.30791/1028-978X-2023-10-58-67
Structure and properties of WC – Cu
layered composites,
obtained under vibration conditions
L. E. Bodrova, E. Yu. Goyda, A. B. Shubin, O. A. Korolev
One of the most popular and widely used is the WC – Co composite. To improve some functional properties: thermal conductivity, corrosion resistance, etc., a search is underway for alternative metal binders with the possible replacement of Co with copper to reduce sintering temperatures and provide a higher thermal conductivity of the composite. Previously, it was shown that melt impregnation of freely poured refractory powders into a crucible-mould, activated by low-frequency vibration (LFV) of their compositions, differs from the methods used in industry in the simplicity of technology, short duration, and the possibility of obtaining composites with a high content of refractory phase with its frameless packaging. 2 – 3-layer WC – Cu/Cu and Cu/WC – Cu/Cu composites with different arrangement of the working WC – Cu layer along the height of the ingot and different structural characteristics and properties of the layer have been obtained. The influence of thermal and temporal conditions, pressure of cold prepressing of WC powder, dilution of carbide powder with copper powder, geometry of stacking of alloy components on the formation of a given lamination of a composite alloy, a given composition, and a minimum porosity of the WC – Cu working layer are analyzed. The hardness and wear resistance of the WC – Cu layer were measured and their relationship with the layer structure and controlled parameters of the composite synthesis process control was established. Both the porosity of the structure and the presence of dense macroaccumulations of WC in the Cu-matrix can be reduced to a minimum by preventive small pre-pressing of freely poured powders at room temperature before loading the alloy components into the furnace, followed by processing of the vibration. Composites with a homogeneous structure and low porosity of the working layer have been obtained.
Keywords:low-frequency vibration, cold pre-pressing of powders, layered WC-Cu composites, frameless structure.
DOI: 10.30791/1028-978X-2023-10-68-77
Bodrova Lyudmila —Institute of Metallurgy of Ural Branch of RAS (620016, Yekaterinburg, Amundsen st., 101), PhD (Chem.), senior researcher, specialist in the field of development and research of structure and properties of composite materials. E-mail: bоdrova-le@mail.ru.
Goyda Eduard — Institute of Metallurgy of Ural Branch of RAS (620016, Yekaterinburg, Amundsen st., 101), PhD (Chem.), researcher, specialist in the field of development and research of structure and properties of composite materials. E-mail: eddy-g0d@yandex.ru.
Shubin Alexey — Institute of Metallurgy of Ural Branch of RAS (620016, Yekaterinburg, Amundsen st., 101), Dr. Sci. (Chem.), head of laboratory of metallurgical melts, specialist in the field of physical chemistry of metallic and ionic melts. E-mail: fortran@list.ru.
Korolev Oleg Anatolyevich — Institute of metallurgy of Ural Branch of RAS, technopark “Academic” (620016, Yekaterinburg, Amundsen st., 101), lead engineer, specialist in the field of obtaining new materials and studying their properties. E-mail: 9030821087@mail.ru.
Bodrova L.E., Goyda E.Yu., Shubin A.B., Korolev O.A. Struktura i svojstva sloistyh kompozitov WC–Cu, poluchennyh v usloviyah vibracii [Structure and properties of WC-Cu layered composites, obtained under vibration conditions]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2023, no. 10, pp. 68 – 77. DOI: 10.30791/1028-978X-2023-10-68-77
Study of the influence of organic
and modifying additives on the technological
properties of G13 powder steel
Zh. V. Eremeeva, Y. S. Ter-Vaganyants
The paper considers the influence of various modifying and organic additives on the technological properties of G13 powder steel, with different mixing options. Technological properties such as fluidity, bulk density and compactibility were investigated. It has been established that the compaction of the G13 powder mixture with copper stearate and nickel stearate is the most successful. Of the considered carbon-containing components, the best compaction occurs with the introduction of pencil graphite. The best technological properties in terms of fluidity and bulk density were obtained with a powder mixture of composition Fe + 14 % FeMn + 1.1 % C + 0.2 % WC (nano). The introduction of organic additives worsens the fluidity of the mixture, but increases their density.
Keywords:powder steels, modifying additives, organic additives, bulk density, fluidity, compactibility, technological properties.
DOI: 10.30791/1028-978X-2023-10-78-84
Eremeeva Zhanna — National University of Science and Technology “MISIS” (119049, Moscow, Leninskiy pr., 4), Moscow Polytechnic University (107023Moscow, Bolshaya Semenovskaya str., 38), Dr.Sci (Eng), professor, specialist in powder metallurgy, powder steels, hot stamping, hard alloys and ceramics. E-mail: eremeeva-shanna@yandex.ru
Ter-Vaganyants Yuliya — Moscow Polytechnic University (107023Moscow, Bolshaya Semenovskaya str., 38), PhD, assistant professor, specialist in powder metallurgy, powder steels, heat treatment of steels E-mail: juliatv1990@mail.ru.
Eremeeva Zh.V., Ter-Vaganyants Y.S. Issledovanie vliyaniya organicheskih i modificiruyushchih dobavok na tekhnologicheskie svojstva poroshkovoj stali G13 [Study of the influence of organic and modifying additives on the technological properties of G13 powder steel]. Perspektivnye Materialy [Advanced Materials] (in Russ), 2023, no. 10, pp. 78 – 84. DOI: 10.30791/1028-978X-2023-10-78-84
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