PERSPEKTIVNYE MATERIALY
2021, no. 11
Heat-resistant RuAl-based alloys.
III. Powder alloys — mechanical alloying
K. B. Povarova, A. E. Morozov, A. A. Drozdov,
A. V. Antonova, M. A. Bulakhtina
Refractory (Tmelt = 2100 °C), heat-resistant ruthenium monoaluminide RuAl, lighter (ρ = 7.97 g/cm3) than Ni superalloys, is considered as a promising candidate material for operation at high temperatures and relatively low loads in high-speed gas oxidizing flows at temperatures higher not only operating temperatures, but also the melting temperatures of both nickel superalloys and nickel and titanium aluminides. RuAl is also an ideal candidate for potential protective coatings. In the first part of the article, RuAl-based cast alloys were considered. In the second part of the article, the possibilities of obtaining alloys based on RuAl directly from the initial powders of ruthenium and aluminum are considered by combining the temperature-time regimes of reaction alloy formation (RA), the sequence and intensity of pressure application during RA. The third part of the article is devoted to studying the possibilities of using powders doped with RuAl (NiAl, TiAl) of a given composition, obtained by mechanical alloying, as a starting material.
Keywords:Ruthenium monoaluminide, powder alloys, reaction alloying, mechanical alloying, structure and properties of powders.
DOI: 10.30791/1028-978X-2021-11-5-19
Povarova Kira — Baikov Institute of Metallurgy and Materials Science Russian Academy of Sciences (Moscow, 119334, Leninsky Prospect, 49), Dr Sci (Eng), professor, chief researcher, specialist in the field of heat-resistant materials, intermetallic compounds and heavy alloys. E-mail: kpovarova@imet.ac.ru.
Morozov Alexey — Baikov Institute of Metallurgy and Materials Science Russian Academy of Sciences (Moscow, 119334, Leninsky Prospect, 49), PhD, senior researcher, specialist in the field of heat-resistant materials and intermetallic alloys. E-mail: amorozov@imet.ac.ru.
Drozdov Andrey — I.P. Bardin Central Research Institute for Ferrous Metallurgy (Moscow, 105005, Radio 23/9, p. 2) PhD, deputy director of NPCPM, a specialist in the field of powder metallurgy; Baikov Institute of Metallurgy and Materials Science Russian Academy of Sciences (Moscow, 119334, Leninsky Prospect, 49), leading researcher, specialist in the field of heat-resistant materials and intermetallic alloys. E-mail: andr23@list.ru.
Antonova Anna — Baikov Institute of Metallurgy and Materials Science Russian Academy of Sciences (Moscow, 119334, Leninsky Prospect, 49), PhD, senior researcher, specialist in the field of heat-resistant materials and intermetallic alloys. E-mail: avantonova2005@mail.ru.
Bulahtina Marina — Baikov Institute of Metallurgy and Materials Science Russian Academy of Sciences (Moscow, 119334, Leninsky Prospect, 49), researcher, specialist in the field of heat-resistant materials and intermetallic alloys. E-mail: m_sm@inbox.ru.
Reference citing:
Povarova K.B., Morozov A.E., Drozdov A.A., Antonova A.V., Bulakhtina M.A. Zharoprochnye splavy na osnove RuAl. III. Poroshkovye splavy RuAl — mekhanicheskoe legirovanie [Heat-resistant RuAl-based alloys. III. Powder alloys — mechanical alloying]. Perspektivnye Materialy — Advanced Materials (in Russ), 2021, no. 11, pp. 5 – 19. DOI: 10.30791/1028-978X-2021-11-5-19
Effect of supercritical carbon dioxide on the in vivo biocompatible and resorptive properties of tissue-specific scaffolds from decellularized pig liver fragments
E. A. Nemets, A. P. Malkova, G. A. Dukhina,
A. E. Lazhko, Y. B. Basok,
A. D. Kirillova, V. I. Sevastianov
The creation of bioengineered tissue/organ equivalents is closely related to the development of biodegradable, highly porous 3D scaffolds, which to some extent provide the microenvironment necessary to maintain the viability of the cellular component. According to many researchers, the most interesting are tissue-specific matrices that can selectively support the adhesion, proliferation and differentiation of tissue cells of those organs from which they are obtained by decellularization. It was shown that during intramuscular implantation in rats of decellularized pig liver fragments (DLFp), independent of the method of detergent residues removing (96 hours of washing in phosphate-salt buffer (PBS) or combined: 24 hours in PBS and 8 hours with supercritical CO2 (sc-CO2), the samples meet the requirements for medical devices in terms of local and general toxic effects. Thus, the use of sc-CO2 made it possible to reduce the duration of the technology for producing biocompatible tissue-specific matrices based on DLFp by 3 times. Moreover, when using sc-CO2 at the stage of washing the DLFp matrix, a “mild reaction” of the tissue to the sample is observed during 2 months of intramuscular implantation of the matrix in rats with its complete resorption after 3 months of the experiment. Under the same conditions, the duration of a similar local action of DLFp washed in the PBS on the tissue is 3 months with degradation of 63% of the matrix of the sample size.
Keywords: pig liver, decellularization, supercritical CO2, local and general toxic effect, resorption.
DOI: 10.30791/1028-978X-2021-11-20-31
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), Dr Sci (Biology), leading research fellow, specialist in biomaterials, tissue engineering, development of blood compatible materials and coatings. E-mail: evgnemets@yandex.ru.
Malkova Anastasiya — ANO “Institute of Biomedical Research and Technology” (123557, B. Tishinsky lane, 43/20, Moscow, RF), head of the laboratory of biological research with a vivarium, specialist in the field of assessing the biological safety and functional effectiveness of medical devices. E-mail: nastena0302@yandex.by.
Dukhina Galina — ANO “Institute of Biomedical Research and Technology” (123557, B. Tishinsky lane, 43/20, Moscow, Russian Federation), lead engineer of the biological research group, specialist in the field of experimental models for the study of biological safety and functional activity of medical devices and pharmaceuticals. E-mail:
duhinagalina@mail.ru.
Lazhko Aleksej — N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Science (119991, Leninsky Prospekt, 31, Moscow), research assistant, specialist in the field of supercritical fluids, development of catalytic systems, modification of medical and biological materials using SC-CO2, gas chromatography. E-mail: alexeylazhko@mail.ru.
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 (Biology), post graduated student, specialist in biomaterials, tissue engineering and regenerative medicine. E-mail: sashak1994@mail.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), Dr Sci (Biology), professor, 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:
Nemets E.A., Malkova A.P., Dukhina G.A., Lazhko A.E., Basok Y.B., Kirillova A.D., Sevastianov V.I. Vliyanie sverhkriticheskogo dioksida ugleroda na biosovmestimye i rezorbtivnye svojstva in vivo tkanespecificheskih matriksov iz decellyulyarizovannyh fragmentov pecheni svin'i [Effect of supercritical carbon dioxide on the in vivo biocompatible and resorptive properties of tissue-specific scaffolds from decellularized pig liver fragments]. Perspektivnye Materialy — Advanced Materials (in Russ), 2021, no. 11, pp. 20 – 31. DOI: 10.30791/1028-978X-2021-11-20-31
Influence of the processing method
on the heat resistance
of the secondary block copolymer of propylene
and ethylene filled with rice hulls
A. R. Sadritdinov, E. M. Zakharova, A. A. Psyanchin,
A. G. Khusnullin, V. P. Zakharov
Polymer composites based on secondary thermoplastic polymers filled with biodegradable components of plant origin was developed. Repeated thermal and mechanical action on polymers during their processing in the presence of dispersed phase particles leads to a change in the thermophysical and strength characteristics of finished products. The paper studies the regularities of changes in the heat resistance of polymer composites based on a secondary block copolymer of propylene and ethylene, and rice husks, processed by injection molding and pressing. It is shown that filling the secondary polymer with rice hulls leads to an increase in the heat resistance of composites, which is characterized by an increase in the bending temperature under load, Vicat softening temperature, and decomposition temperature during thermogravimetric analysis in an inert atmosphere. Compared to the injection molding method, the processing of polymer composites by pressing makes it possible to obtain more heat-resistant plastic products. Obviously, this is due to the different degrees of crystallinity of the polymer phase. The high cooling rate of the polymer composite melt during the filling of the injection mold reduces the time required for the corresponding change in the conformation of macromolecules and the formation of the crystalline phase. As a consequence, an increase in the content of the amorphous phase of the secondary block copolymer of propylene and ethylene decreases the heat resistance of the prototypes.
Keywords: secondary block copolymer of propylene and ethylene, rice hulls, stress bending temperature, Vicat softening temperature, thermogravimetric analysis, crystallinity.
DOI: 10.30791/1028-978X-2021-11-32-38
Sadritdinov Ainur — Bashkir State University (32 Zaki Validi str., Ufa, 450076 RF), postgraduate student, specialist in the field of high-molecular compounds. E-mail:
aynur.sadritdinov@mail.ru.
Zakharova Elena — Bashkir State University (32 Zaki Validi str., Ufa, 450076 RF), PhD (Chem), senior researcher, specialist in the field of high-molecular compounds. E-mail: lena991999@mail.ru.
Psyanchin Artur — Bashkir State University (32 Zaki Validi str., Ufa, 450076 RF), postgraduate student, specialist in the field of high-molecular compounds. E-mail: Artps96@yandex.ru.
Khusnullin Aigiz — Bashkir State University (32 Zaki Validi str., Ufa, 450076 RF), postgraduate student, specialist in the field of high-molecular compounds. E-mail:
aygiz.husnullin@yandex.ru.
Zakharov Vadim — Ufa Federal Research Center of the Russian Academy of Sciences
(71 Oktyabrya Ave., Ufa, 450054), Dr Sci (Chem), professor, acting chairman, specialist in the field of high-molecular compounds. E-mail: ZaharovVP@mail.ru.
Reference citing:
Sadritdinov A.R., Zakharova E.M., Psyanchin A.A., Khusnullin A.G., Zakharov V.P. Vliyanie sposoba pererabotki na teplostojkost' vtorichnogo blok-sopolimera propilena i etilena, napolnennogo risovoj sheluhoj [Influence of the processing method on the heat resistance of the secondary block copolymer of propylene and ethylene filled with rice hulls]. Perspektivnye Materialy — Advanced Materials (in Russ), 2021, no. 11, pp. 32 – 38. DOI: 10.30791/1028-978X-2021-11-32-38
Study of a highly porous composite material based on an aluminum matrix with an ordered cellular structure formed by hollow copper-graphite spherical granules
V. A. Gulevskiy, V. I. Antipov, L. V. Vinogradov,
S. N. Tsurikhin, A. G. Kolmakov,
V. V. Gulevskiy, M. E. Prutskov
The structure and properties of a highly porous cellular composite material based on a framework of hollow spherical granules with a thin copper-graphite coating impregnated with an aluminum alloy have been investigated. Highly porous composite composite casting with molten form, filled with expanded polystyrene spherical granules with a thin copper-graphite layer applied to their surface. When the polymer core of the granules burns out in the casting, a highly porous cellular composite material is formed with an aluminum matrix filled with spherical pores Æ 4 – 8 mm, adjoining the metal matrices through a thin (300 – 500 μm) copper shell. The density of the porous composite material obtained in this way is 1.67 g/cm3. In order to fill the space between the granules with aluminum melt, their surfaces were coated with a thin layer of titanium, molybdenum, or chromium borides, which positively affected the strength characteristics of the composite material as a whole. Estimated calculation of the shock absorber index of a new highly porous structural material based on aluminum matrices with a cellular structure made of spherical hollow granules regularly distributed over the volume proved the prospects of its subsequent use as an absorber of shock energy in shock-absorbing devices.
Keywords: foam aluminum, highly porous cellular material, composite material, shock-absorbing properties.
DOI: 10.30791/1028-978X-2021-11-39-46
Gulevskiy Viktor — Volgograd State Technical University (Volgograd, 400131, ave. Lenina, 28), assistant professor, PhD (Eng), specialist in the field of powder metallurgy, coatings, and composites. E-mail: gulevskiy.v@mail.ru.
Antipov Valerij — Baikov Institute of Metallurgy and Materials Sciences of RAS (119334 Moscow, Russia, Leninskii Prospect, 49), PhD (Eng), senior scientific employee, specialist in the field of powder metallurgy, coatings, and composites. E-mail: viantipov@imet.ac.ru.
Vinogradov Leonid — Baikov Institute of Metallurgy and Materials Sciences of RAS (119334 Moscow, Russia, Leninskii Prospect, 49), PhD (Eng), senior scientific employee, specialist in the field of powder metallurgy, coatings, and composites. E-mail: ltdvin@yandex.ru.
Tsurikhin Sergey — Volgograd State Technical University (Volgograd, 400131, ave. Lenina, 28), PhD (Eng), assistant professor, specialist in the development and creation of composite materials. E-mail: madgestic@yandex.ru.
Kolmakov Alexey — Baikov Institute of Metallurgy and Materials Sciences of RAS (119334 Moscow, Russia, Leninskii Prospect, 49), Dr Sci (Eng), correspondent member of RAS, head of the laboratory, specialist in the field of composition and nanomaterials, the multifractal analysis, synergetrics. E-mail: akolmakov@imet.ac.ru.
Gulevskiy Vasiliy — Volgograd State Technical University (Volgograd, 400131, ave. Lenina, 28, graduate student, specialist in the field of composite materials technology.E-mail:
gulevskij.v@yandex.ru.
Prutskov Mikhail — Baikov Institute of Metallurgy and Materials Sciences of RAS (119334 Moscow, Russia, Leninskii Prospect, 49), junior researcher, specialist in the field of composition and nanomaterials, the multifractal analysis, synergetrics. E-mail: mprutskov@imet.ac.ru.
Reference citing:
Gulevskiy V.A., Antipov V.I., Vinogradov L.V., Tsurikhin S.N., Kolmakov A.G., Gulevskiy V.V., Prutskov M.E. Issledovanie vysokoporistogo kompozicionnogo materiala na osnove alyuminievoj matricy s uporyadochennoj yacheistoj strukturoj, obrazovannoj polymi medno-grafitovymi sfericheskimi granulami [Study of a highly porous composite material based on an aluminum matrix with an ordered cellular structure formed by hollow copper-graphite spherical granules]. Perspektivnye Materialy — Advanced Materials (in Russ), 2021, no. 11, pp. 39 – 46. DOI: 10.30791/1028-978X-2021-11-39-46
Composites based on isotactic polypropylene and high-pressure polyethylene with zink-containing nanofillers
N. I. Kurbanova, S. K. Ragimova, N. A. Alimirzoeva,
N. Ya. Ishenko, V. V. Medyakov
The effect of nanofiller (NF) additives containing zink oxide nanoparticles stabilized by a polymer matrix of high pressure polyethylene obtained by the mechanochemical method on the structure and properties of metal-containing nanocomposites based on isotactic polypropylene (PP) and high pressure polyethylene (PE) using differential thermal (DTA) and X-ray phase (XRF) analyzes. The improvement of strength, deformation and rheological parameters, as well as thermal-oxidative stability of the obtained nanocomposites was revealed, which, apparently, is associated with the synergistic effect of interfacial interaction of zink — containing nanoparticles in the PE matrix with the components of the PP/PE polymer composition. It is shown that nanocomposites based on PP/PE/NF can be processed both by pressing method and by injection molding and extrusion methods, which expands the scope of its application.
Keywords: isotactic polypropylene; high pressure polyethylene; metal-containing nanocomposites; zink oxide nanoparticles; strength and thermal properties; DTA and XRF analysis.
DOI: 10.30791/1028-978X-2021-11-47-53
Kurbanova Nushaba Ismail gizi —Institute of Polymer Materials of Azerbaijan National Academy of Sciences (Sumgait, Azerbaijan, Az5004, 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 Azerbaijan National Academy of Sciences (Sumgait, Azerbaijan, Az5004, S. Vurgun Str, 124), dissertant, specialist in the field of development of composition materials. E-mail: ipoma@science.az.
Alimirzoeva Naida Amanulla gizi —Institute of Polymer Materials NAS of Azerbaijan (Sumgait, Azerbaijan, Az5004, S. Vurgun Str, 124), junior researcher, specialist in the field of development of composition materials. E-mail: ipoma@science.az.
Ishenko Nelli — Institute of Polymer Materials of Azerbaijan National Academy of Sciences (Sumgait, Azerbaijan, Az5004, S. Vurgun Str, 124), PhD (Chem), head of laboratory, specialist in the field of development of composition materials. E-mail: ipoma@science.az.
Medyakov Viktor — Institute of Polymer Materials of Azerbaijan National Academy of Sciences (Sumgait, Azerbaijan, Az5004, S. Vurgun Str, 124), engineer, specialist in the field of development of composition materials. E-mail: ipoma@science.az.
Reference citing:
Kurbanova N.I., Ragimova S.K., Alimirzoeva N.A., Ishenko N.Ya., Medyakov V.V. Cinksoderzhashchie nanokompozity na osnove izotakticheskogo polipropilena i polietilena vysokogo davleniya [Composites based on isotactic polypropylene and high-pressure polyethylene with zink-containing nanofillers]. Perspektivnye Materialy — Advanced Materials (in Russ), 2021, no. 11, pp. 47 – 53. DOI: 10.30791/1028-978X-2021-11-47-53
Microwave carbonization of cotton fiber
for the production of carbon materials
E. V. Matveev, A. I. Gajdar, B. A. Lapshinov,
A. V. Mamontov, V. V. Berestov
This article presents the results of comparative studies of the structural and physico-chemical features of cotton lint samples carbonized by the microwave method and the standard (thermal) method. The dependences of the temperature change of the samples during the microwave carbonization process are obtained. The heterogeneity of the morphology of the fiber surface along the cross-section of the microwave carbonized sample was revealed. It is shown that the structure of the surface layers is characterized by two mechanisms of fiber destruction: numerous brittle transverse fractures and coloring of the fibers in places of swellings (a sharp increase in their diameter) and fluffing of the surface into convoluted fibrils with a transverse size of 50 – 300 nm due to the destruction of the outer layers of the secondary fiber wall. In the central region, the destruction of fibers occurs by the formation of longitudinal interfibrillary slits and the delamination of the secondary fiber wall, which leads to the formation of pores with dimensions of 50 – 200 nm. It is established that during the microwave carbonization process, the central part of the sample is almost completely freed from impurities that are deposited on the fibers of the surface layers. It is shown that the integral adsorption capacity of the microwave carbonized sample is higher than the adsorption capacity of the sample carbonized by the thermal method (126 mg/g and 47 mg/g, respectively). It was found that during microwave exposure more than 10 minutes, regions with an adsorption capacity of ~ 350 – 450 mg/g appear in the carbonized material, that is comparable to the capacity of samples activated by the standard method.
Keywords: microwave carbonation, cotton fiber, thermochemical activation, pyrolysis, electron microscopy, pyrometry, adsorption capacity.
DOI: 10.30791/1028-978X-2021-11-54-68
Matveev Egor — Research Institute of Advanced Materials and Technologies (RIAMT, 53 Shcherbakovskaya str., Moscow, 105187), PhD (Eng), senior researcher, specialist in the field of research of physical and mechanical properties of materials. E-mail: maegor@gmail.com.
Gaidar Anna — Research Institute of Advanced Materials and Technologies (RIAMT, 53 Shcherbakovskaya str., Moscow, 105187), PhD (Phys-Math), senior researcher, specialist in the field of electron microscopy and elemental microanalysis. E-mail: a_i_g@bk.ru.
Lapshinov Boris — Research Institute of Advanced Materials and Technologies (RIAMT, 53 Shcherbakovskaya str., Moscow, 105187), PhD (Eng), senior researcher, specialist in the field of laser technologies and spectral pyrometry. E-mail: lbaniipmt@mail.ru.
Mamontov Alexander —Research Institute of Advanced Materials and Technologies (RIAMT, 53 Shcherbakovskaya str., Moscow, 105187), PhD (Eng), acting Director, specialist in the field of microwave technologies for processing materials. E-mail: a.v.mamontov@gmail.com.
Berestov Valentin — Research Institute of Advanced Materials and Technologies (RIAMT, 53 Shcherbakovskaya str., Moscow, 105187), junior researcher, specialist in the field of structural nanomaterials. E-mail: vberestov97@gmail.com.
Reference citing:
Matveev E.V., Gajdar A.I., Lapshinov B.A., Mamontov A.V., Berestov V.V. SVCH karbonizaciya hlopkovogo volokna dlya polucheniya uglerodnyh materialov [Microwave carbonization of cotton fiber for the production of carbon materials]. Perspektivnye Materialy — Advanced Materials (in Russ), 2021, no. 11, pp. 54 – 68. DOI: 10.30791/1028-978X-2021-11-54-68
Researches of stability of monolithic
and layered plates
under compression
E. I. Oreshko, V. S. Erasov, O. A. Lashov, N. O. Yakovlev
The results of calculations of the stability of monolithic and layered plates, obtained by analytical and numerical methods, are presented, which are compared with experimental data. The obtained results of stability calculations are within the limits of the permissible error. The results of numerical calculations of stability by the finite element method in the ANSYS program turned out to be higher than the values determined by the Euler formula and lower than the results obtained by the formula for calculating the stability of plates. To study the bearing capacity of layered samples under compression, an assessment of their stability was carried out with different numbers and arrangement of layers of alloy and composite material. The optimal layouts of layers in the material for designing a composite panel have been determined. The results were used to design a composite wing panel based on sheets and profiles made of high-strength aluminum-lithium alloy and laminated aluminum-fiberglass. Stability of the composite panel under compression were 7% higher than the experimental values due to the local loss of stability of its elements, which precedes the general loss of stability and reduces the value of the critical load.
Keywords: stability calculation, plate, core, method of final elements, critical force of loss of stability.
DOI: 10.30791/1028-978X-2021-11-69-84
Oreshko Evgeny —All-Russian scientific research institute of aviation materials (FSUE VIAM, Moscow, 105005, Radio st., 17), PhD (Eng), senior staff scientist, expert in durability of aviation materials. E-mail:89639619741@mail.ru.
Erasov Vladimir —All-Russian scientific research institute of aviation materials (FSUE VIAM, Moscow, 105005, Radio st., 17), PhD (Eng), researcher, expert in durability of aviation materials.
Lashov Oleg — All-Russian scientific research institute of aviation materials (FSUE VIAM, Moscow, 105005, Radio st., 17), engineer, expert in durability of aviation materials.
Yakovlev Nikolay — All-Russian scientific research institute of aviation materials (FSUE VIAM, Moscow, 105005, Radio st., 17), PhD (Eng), chief of laboratory, expert in durability of aviation materials.
Reference citing:
Oreshko E. I., Erasov V. S., Lashov O. A., Yakovlev N. O. Issledovaniya ustojchivosti monolitnyh i sloistyh plastin pri szhatii [Researches of stability of monolithic and layered plates under compression]. Perspektivnye Materialy — Advanced Materials (in Russ), 2021, no. 11, pp. 69 – 84. DOI: 10.30791/1028-978X-2021-11-69-84
