PERSPEKTIVNYE MATERIALY
2022, No.1
High-temperature corrosion-resistant ceramic composite materials based on (Si – B – C – N) system compounds (Review)
T. N. Smetyukhova, А. А. Barmin, L. E. Agureev,
R. I. Rudshtein, I. N. Laptev, A. V. Ivanov,
B. S. Ivanov
Based on the analysis of domestic and foreign scientific publications, a systematization of data on the results achieved in the development of promising materials based on two-, three- and four-component compounds of the system (Si – B – C – N), such as nitrides, carbides, borides, silicon carbonitrides and boron, silicoboron carbonitride. Information about their structure, physical and thermomechenical properties and methods of sintering are given. The dependence of the properties of fibers, bulk and composite materials on the chemical composition and structure of Si – B – C – N-compounds is considered. The results of testing finished products at high temperatures in an oxidizing environment are presented. The prospects for the use of materials of the system (Si – B – C – N) in industry and technology for the manufacture of parts and assemblies intended for operation at high temperatures under mechanical loading in corrosive media are described.
Keywords: silicon carbonitride, boron carbonitride, silicoboron carbonitride, fibers, composite materials.
DOI: 10.30791/1028-978X-2022-1-5-21
Smetyukhova Tatiana — Joint Stock Company “Keldysh State Research Center” (125438, Moscow, Onezhskaya st., 8), research officer, specialist in the field of nanomaterials and nanotechnology. E-mail: smetyukhova.t.n@yandex.ru, nanocentre@kerc.msk.ru.
Barmin Aleksandr — Joint Stock Company “Keldysh State Research Center” (125438, Moscow, Onezhskaya st., 8), leading researcher, specialist in the field of ceramics, nanomaterials and nanotechnology. E-mail: nanocentre@kerc.msk.ru.
Agureev Leonid — Joint Stock Company “Keldysh State Research Center” (125438, Moscow, Onezhskaya st., 8), senior researcher, specialist in the field of nanomaterials and nanotechnology. E-mail: nanocentre@kerc.msk.ru.
Rudshtein Roman — Joint Stock Company “Keldysh State Research Center” (125438, Moscow, Onezhskaya st., 8), senior researcher, specialist in the field of ceramics, nanomaterials and nanotechnology. E-mail: nanocentre@kerc.msk.ru.
Laptev Ivan — Joint Stock Company “Keldysh State Research Center” (125438, Moscow, Onezhskaya st., 8), engineer, specialist in the field of mechanical testing of materials. E-mail: nanocentre@kerc.msk.ru.
Ivanov Andrej — Joint Stock Company “Keldysh State Research Center” (125438, Moscow, Onezhskaya st., 8), engineer, specialist in the sintering of ceramic materials. E-mail: nanocentre@kerc.msk.ru.
Ivanov Boris — Joint Stock Company “Keldysh State Research Center” (125438, Moscow, Onezhskaya st., 8), research officer, specialist in the field of nanomaterials and nanotechnology. E-mail: nanocentre@kerc.msk.ru.
Reference citing
Smetyukhova T.N., Barmin А.А., Agureev L.E., Rudshtein R.I., Laptev I.N., Ivanov A.V., Ivanov B.S. Vysokotemperaturnye korrozionnostojkie keramicheskie kompozicionnye materialy na osnove soedinenij sistemy (Si – B – C – N) (obzor) [High-temperature corrosion-resistant ceramic composite materials based on (Si – B – C – N) system compounds (Review)]. Perspektivnye Materialy — Advanced Materials (in Russ), 2022, no. 1, pp. 5 – 21. DOI: 10.30791/1028-978X-2022-1-5-21
Crystallization conditions for ingots
of high-strength aluminum alloys with an increased
content of zirconium
S. G. Bochvar, N. D. Shanin, V. I. Tararyshkin,
P. Yu. Predko
The structure of model alloys of the aluminum-zirconium system and industrial 1973-type alloy with an increased content of zirconium after rapid cooling to temperatures of the liquid-solid region and isothermal holding at these temperatures has been studied. It is shown that during primary crystallization of intermetallic precipitates with low crystallization rate, it is advisable to use the model of decomposition of supersaturated solid solutions. It was determined that formation of Al3Zr particles leads to zirconium decrease in the solid solution in center and grain boundary. Under certain crystallization conditions, there is an incubation period for the zirconium intermetallic compounds precipitation. It is shown that the incubation period for aluminum with 0.25 % zirconium is more than 2 minutes, and for 0.5 % zirconium — less than 0.5 minutes. The value of the dendritic parameter of the 1973-type alloy with an increased zirconium content during two-stage crystallization corresponds to the known regularity of the change in the dendritic parameter depending on the cooling rate. Casting of alloy ingots of 1960-type alloy with 0.27 % Zr by the two-stage cooling with the use of a water-cooling tray has been tested. This made possible to produce ingots with 84 mm diameter without the formation of primary intermetallic compounds. The mechanical properties of forgings from such ingots showed an increase in ductility by 20 % while maintaining the strength characteristics.
Keywords:casting, aluminum alloys, zirconium aluminides, modification, solid-liquid state, high cooling rate.
DOI: 10.30791/1028-978X-2022-1-22-33
Bochvar Sergey — Baikov Institute of Metallurgy and Materials Science RAS (Leninskiy pr. 49, Moscow, Russia, 119334), Dr Sci (Eng), leading researcher, specialist in materials science of aluminum alloys. E-mail: sbochvar@imet.ac.ru.
Shanin Nikolay — Baikov Institute of Metallurgy and Materials Science, RAS (Leninskij pr. 49, Moscow, Russia, 119334), PhD, senior researcher, specialist of metal forming processes. E-mail: metagran@mail.ru.
Tararyshkin Victor — Baikov Institute of Metallurgy and Materials Science, RAS (Leninskij pr. 49, Moscow, Russia, 119334), PhD, researcher, specialist in casting of aluminum alloys.
Predko Pavel — OJSC All-Russian Institute of Light Alloys (Gorbunova st. 2, Moscow, Russia, 121596), leading process engineer, specialist in welding and casting of aluminum and magnesium alloys. E-mail: predko626@gmail.com.
Reference citing
Bochvar S.G., Shanin N.D., Tararyshkin V.I., Predko P.Yu. Usloviya kristallizacii slitkov vysokoprochnyh alyuminievyh splavov s povyshennym soderzhaniem cirkoniya [Crystallization conditions for ingots of high-strength aluminum alloys with an increased content of zirconium]. Perspektivnye Materialy — Advanced Materials (in Russ), 2022, no. 1, pp. 22 – 33. DOI: 10.30791/1028-978X-2022-1-22-33
Sorption-desorption properties
of graphene oxide/polyhydroquinone nanocomposite
in the extraction of rare earth elements Sm (III) ions
from acetic-acetate buffer systems
A. V. Babkin, E. A. Neskoromnaya, I. V. Burakova,
A. E. Burakov, E. S. Mkrtchyan, A. G. Tkachev
The paper describes the extraction of the rare earth element Sm3+ from aqueous buffer systems by a graphene-based nanostructured composite, modified using an organic polymer – polyhydroquinone. The authors determined the important parameters of the sorption-desorption of Sm3+ ions on a new nanocomposite “graphene oxide/polyhydroquinone” during a batch test, such as: initial concentration, the sorbent weight, pH of the solution, sorption rate constants, maximum sorption capacity of the nanocomposite, percentage sorption and desorption, entropy and enthalpy of the Sm3+ extraction process. The kinetic, isothermal and thermodynamic dependences allowed to propose of the Sm3+ ions adsorption mechanisms. The kinetic data were processed by pseudo-first- and second-order, Elovich and intraparticle diffusion models, and adsorption isotherms — using the Langmuir, Freundlich, Temkin, Dubinin-Radushkevich equations. As a result of kinetic studies, the contact time of the samarium adsorption was determined — 15 min, while the sorption capacity was 100 mg·g–1. It was found that the absorption of Sm3+ ions proceeds by a mixed diffusion mechanism and limited by the interaction “samarium ions : sorbent functional groups”. According to the Langmuir model, the maximum sorbent sorption capacity was 333.3 mg·g–1. Thus, the high efficiency of the developed graphene oxide/polyhydroquinone nanocomposite for purification of aqueous media from rare earth elements was confirmed.
Keywords: graphene oxide, quinone, rare earth elements, samarium, adsorption, desorption, kinetics, isotherms, thermodynamics.
DOI: 10.30791/1028-978X-2022-1-34-48
Babkin Alexander — Tambov State Technical University (Tambov, 392000, Leningradskaya, 1), PhD in tech. science, specialist in the field of adsorption technologies and carbon nanomaterials synthesis. E-mail: flex_trol@mail.ru.
Neskoromnaya Elena — Tambov State Technical University (Tambov, 392000, Leningradskaya, 1), PhD in tech. science, specialist in the field of adsorption technologies and carbon nanomaterials synthesis. E-mail: lenok.n1992@mail.ru.
Burakova Irina — Tambov State Technical University (Tambov, 392000, Leningradskaya Str., 1), PhD, assistant professor, specialist in the field of adsorption technologies and carbon nanomaterials synthesis. E-mail: iris_tamb68@mail.ru.
Burakov Alexander — Tambov State Technical University (Tambov, 392000, Leningradskaya, 1), PhD, assistant professor, specialist in the field of adsorption technologies and carbon nanomaterials synthesis. E-mail: m-alex1983@yandex.ru.
Mkrtchyan Elina — Tambov State Technical University (Tambov, 392000, Leningradskaya, 1), master student, specialist in adsorption technologies and carbon nanomaterials synthesis. E-mail: elina.mkrtchyan@yandex.ru.
Tkachev Aleksey — Tambov State Technical University (Tambov, 392000, Leningradskaya, 1), Dr Sci (Eng), professor, head of the department “Equipment and Technologies of Nanoproduct Manufacture”. E-mail: nanotam@yandex.ru.
Reference citing
Babkin A.V., Neskoromnaya E.A., Burakova I.V., Burakov A.E., Mkrtchyan E.S., Tkachev A.G. Sorbcionno-desorbcionnye svojstva nanokompozita oksid grafena/poligidrohinon pri izvlechenii redkozemel'nogo elementa Sm (III) iz uksusno-acetatnyh bufernyh sistem [Sorption-desorption properties of graphene oxide/polyhydroquinone nanocomposite in the extraction of rare earth elements Sm (III) ions from acetic-acetate buffer systems]. Perspektivnye Materialy — Advanced Materials (in Russ), 2022, no. 1, pp. 34 – 48. DOI: 10.30791/1028-978X-2022-1-34-48
Synthesis and properties of polyacrylamide
ferrogels filled with magnetic
nanoparticles of strontium hexaferrite
Е. А. Mikhnevich, A. P. Safronov
Ferrogels based on polyacrylamide with embedded magnetic particles of strontium hexaferrite SrFe12O19 with their content up to 17.9 wt. % have been synthesized and studied. The enthalpy of adhesion of polyacrylamide to the surface of particles was determined by the calorimetric method using a thermochemical cycle. Its negative values indicate good adhesion. This leads to a significant decrease in the degree of swelling of ferrogels with increasing particle content. The modulus of elasticity of ferrogels was measured under uniaxial compression with and without an external uniform magnetic field of 27.5 mT. The effect of a uniform magnetic field of 420 mT on the magnetostriction of ferrogels has been studied. It has been shown that ferrogels based on polyacrylamide filled with strontium hexaferrite underwent universal stretching in a magnetic field, leading to an increase in their volume and additional swelling.
Keywords: ferrogel, magnetic field, elastic modulus.
DOI: 10.30791/1028-978X-2022-1-49-59
Mikhnevich Ekaterina — Ural Federal University named after the first President of Russia B.N. Yeltsin (Yekaterinburg, 620006, Prospect Mira, 19), graduate student, laboratory assistant-researcher, specialist in the field of chemistry and materials science. Е-mail:
emikhnevich93@gmail.com.
Safronov Alexander — Ural Federal University named after the first President of Russia B.N. Yeltsin (Yekaterinburg, 620006, Prospect Mira, 19), Dr Sci (Phys-Math), professor, specialist in the field of chemistry and materials science. E-mail: alexander.safronov@urfu.ru.
Reference citing
Mikhnevich Е.А., Safronov A.P. Sintez i svojstva poliakrilamidnyh ferrogelej, napolnennyh magnitnymi nanochasticami geksaferrita stronciya [Synthesis and properties of polyacrylamide ferrogels filled with magnetic nanoparticles of strontium hexaferrite]. Perspektivnye Materialy — Advanced Materials (in Russ), 2022, no. 1, pp. 49 – 59. DOI: 10.30791/1028-978X-2022-1-49-59
Investigation of structure and corrosion
resistance of titanium alloys produced
by the method of spark plasma sintering
A. V. Nokhrin, P. V. Andreev, M. S. Boldin,
V. N. Chuvil’deev, M. K. Chegurov, K. E. Smetanina,
A. A. Nazarov, G. V. Scherbak, A. A. Murashov,
G. S. Nagicheva
The results of the structure and corrosion resistance researches of titanium alloys VT1-0, PT-3B and VT6 obtained by spark plasma sintering (SPS) are described. Microstructure, phase composition and microhardness have been investigated. It is shown that the alloy samples have a homogeneous high-density microstructure and high values of microhardness. The alloys samples showed high corrosion resistance in the electrochemical corrosion tests in acidic aqueous solution causing intergranular corrosion. The alloys also showed high resistance against hot salt corrosion. It has been suggested that the high hardness of the alloys as well as the differences in corrosion resistance of the central and lateral surfaces of the samples are due to the diffusion of carbon from the graphite mold into the sample surface.
Keywords: titanium alloy, spark plasma sintering, density, grain boundaries, corrosion resistance.
DOI: 10.30791/1028-978X-2022-1-60-73
Nokhrin Alexey — N.I. Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin av., 23), Dr Sci (Phys-Math), head of the laboratory, specialist in diffusion processes. E-mail: nokhrin@nifti.unn.ru.
Andreev Pavel — N.I. Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin av., 23), PhD, junior researcher, specialist in X-ray diffraction methods. E-mail: andreev@phys.unn.ru.
Boldin Maksim — N.I. Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin av., 23), PhD, head of the laboratory, specialist in spark plasma sintering method. E-mail: boldin@nifti.unn.ru.
Chuvil’deev Vladimir — N.I. Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin av., 23), Dr Sci, professor, director, specialist in diffusion processes. E-mail: chuvildeev@nifti.unn.ru.
Chegurov Mikhail — N.I. Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin av., 23), PhD, associated professor, engineer, specialist in corrosion testing. E-mail: mkchegurov@nifti.unn.ru.
Smetanina Ksenia — N.I. Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin av., 23), PhD-student, laboratory assistant, specialist in X-ray diffraction methods. E-mail: smetanina@nifti.unn.ru.
Nazarov Artyom — N.I. Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin av., 23), student, specialist in X-ray diffraction methods. E-mail:
nazarov.artem6230@gmail.com.
Scherbak Gleb — N.I. Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin av., 23), student, laboratory assistant, mechanical testing specialist. E-mail: scherbak@nifti.unn.ru.
Murashov Artyom — N.I. Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin av., 23), PhD-student, engineer, specialist in electron microscopy. E-mail: aamurashov@nifti.unn.ru.
Nagicheva Galina — N.I. Lobachevsky State University of Nizhny Novgorod (603022, Nizhny Novgorod, Gagarin av., 23), student, laboratory assistant, specialist in optical microscopy. E-mail: nagicheva@nifti.unn.ru.
Reference citing
Nokhrin A.V., Andreev P.V., Boldin M.S., Chuvil’deev V.N., Chegurov M.K., Smetanina K.E., Nazarov A.A., Scherbak G.V., Murashov A.A., Nagicheva G.S. Issledovanie struktury i korrozionnoj stojkosti titanovyh splavov, poluchennyh metodom elektroimpul'snogo (iskrovogo) plazmennogo spekaniya [Investigation of structure and corrosion resistance of titanium alloys produced by the method of spark plasma sintering ]. Perspektivnye Materialy — Advanced Materials (in Russ), 2022, no. 1, pp. 60 – 73. DOI: 10.30791/1028-978X-2022-1-60-73
Physical and mechanical properties
of nitrile butadiene rubber modified
by single-wall carbon nanotube concentrates
R. V. Karpunin, M. S. Korotkov, A. Yu. Skuratov,
A. A. Khasin
Single-walled carbon nanotubes (SWCNTs) are used as an universal additive to increase the mechanical and electrical properties of materials. In this work, we introduced SWCNTs in nitrile butadiene rubbers filled with 60 phr carbon black using concentrates of pre-dispersed SWCNTs in a solution of nitrile butadiene rubber with dibutyl phthalate. It is shown that the addition of 0.15 wt. % of SWCNTs allowed decreasing the specific volume electrical resistivity by 4 orders and increasing the tensile moduli at 50 % and 100 % elongation by 50 % and 30% respectively. The tensile moduli at 50 % and 100 % elongation and the tear resistance linearly depend on the concentration of SWCNTs in the nanocomposite for the studied concentration range up to 0.5 wt. %, while the elongation at break and the tensile strength of the rubber do not change within the tolerance of measurements. The specific volume electrical resistivity depends on the concentration of SWCNTs in the rubber according to Kirkpatrick power law with percolation threshold of 0.05 wt. % and achieves 10 Ω·cm at 0.5 wt. % of SWCNTs.
Keywords:single-walled carbon nanotubes, concentrates, nitrile butadiene rubber.
DOI: 10.30791/1028-978X-2022-1-74-84
Karpunin Ruslan — Tuball Center NSK ltd. (Inzhenernaya str., 24, Novosibirsk, 630090 Russia), researcher, specialist in chemistry and technology for elastomers processing. E-mail: karpunin.rv@ocsial.com.
Korotkov Maxim — Novosibirsk State University (Pirogova str., 2, Novosibirsk, 630090 Russia), specialist in nanocomposites. E-mail: m.korotkov1@g.nsu.ru.
Skuratov Andrey — Tuball Center NSK ltd. (Inzhenernaya str., 24, Novosibirsk, 630090 Russia), senior engineer, specialist in chemistry and technology for elastomers processing. E-mail: skuratov.ay@ocsial.com.
Khasin Alexander — Tuball Center NSK ltd. (Inzhenernaya str., 24, Novosibirsk, 630090 Russia) Dr Sci (Chem), leading researcher; Novosibirsk State University, associated professor, specialist in nanomaterials. E-mail: khasin.aa@ocsial.com.
Reference citing
Karpunin R.V., Korotkov M.S., Skuratov A.Yu., Khasin A.A. Fiziko-mekhanicheskie svojstva butadien-nitril'nyh rezin, modificirovannyh koncentratami odnostennyh uglerodnyh nanotrubok [Physical and mechanical properties of nitrile butadiene rubber modified by single-wall carbon nanotube concentrates]. Perspektivnye Materialy — Advanced Materials (in Russ), 2022, no. 1, pp. 74 – 84. DOI: 10.30791/1028-978X-2022-1-74-84
