Electro-physical properties of 2 Co – Ti – Al alloy synthesized by SHS-densification

M. L. Busurina, A. V. Karpov, V. A. Shcherbakov, A. N. Gryadunov,
N. V. Sachkova, A. E. Sytschev

The present study is devoted to the investigation of phase composition, microstructure and electro-physical properties of Co2TiAl alloy obtained by self-propagating high-temperature synthesis (SHS) with densification. In the research the almost single-phase alloy based on the Co2TiAl (Heusler compound) was synthesized by SHS for the first time. The mass content of the Co2TiAl phase was 82 %. There are also small amounts of TiCox intermetallic with variable composition in the combustion products. Calculated lattice parameter of Co2TiAl is a = 5.8433 ± 0.0002 Å. Metallographic study of samples microstructure obtained by SHS-densification demonstrates more dense structure and lower porosity as compared with the samples obtained by traditional SHS without densification. Average microhardness of the synthesized alloy is equal to Hµ = 5650 MPa. Synthesized product showed an electrical resistance of 1.35 µΩm at a room temperature. The temperature dependence of resistivity ρ(T) in the range of 77 – 1300 K in vacuum 1,33·10‒3 Pa is determined. The behavior of ρ(T) of Co2TiAl alloy at temperatures above 600 K shows decreasing of the curve slope, i.e. this alloy has a so-called resistance saturation effect. Curie point corresponding the transition from magnetic to paramagnetic state is found to be equal 133 K.

Keywords: intermetallics, Co2TiAl Heusler alloy, thermal explosion, resistivity.

DOI: 10.30791/1028-978X-2020-1-5-12

Busurina Maria — Merzhanov Institute of Structural Macrokinetics and Materials Science RAS (Academician Osipyan str., 8, Chernogolovka Moscow Region, 142432 Russia), junior researcher, specialist in self-propagating high-temperature synthesis of intermetallic alloys Ti-Al-Me. E-mail: busurina@ism.ac.ru; chernegam@mail.ru.

Karpov Andrei — Merzhanov Institute of Structural Macrokinetics and Materials Science RAS (Academician Osipyan str., 8, Chernogolovka Moscow Region, 142432 Russia), researcher, specialist in electro-physical measurements. E-mail: karpov@ism.ac.ru.

Gryadunov Alexander — Merzhanov Institute of Structural Macrokinetics and Materials Science RAS (Academician Osipyan str., 8, Chernogolovka Moscow Region, 142432 Russia), PhD, senior researcher, specialist in SHS pressing. E-mail: gryad@ism.ac.ru.

Shcherbakov Vladimir — Merzhanov Institute of Structural Macrokinetics and Materials Science RAS (Academician Osipyan str., 8, Chernogolovka Moscow Region, 142432 Russia), Dr Sci, senior researcher, specialist in physical stimulation of physico-chemical processes. E-mail: vladimir@ism.ac.ru.

Sachkova Nina — Merzhanov Institute of Structural Macrokinetics and Materials Science RAS (Academician Osipyan str., 8, Chernogolovka Moscow Region, 142432 Russia), researcher, specialist in scanning electronic microscopy. E-mail: sem@ism.ac.ru.

Sytschev Alexander — Merzhanov Institute of Structural Macrokinetics and Materials Science RAS (Academician Osipyan str., 8, Chernogolovka Moscow Region, 142432 Russia), PhD, head of department, specialist in investigation of structure and phase formation during self-propagating high-temperature synthesis.
E-mail:sytschev@ism.ac.ru.

Reference citing

Busurina M.L., Karpov A.V., Shcherbakov V.A., Gryadunov A.N., Sachkova N.V., Sytschev A. E. Elektrofizicheskie svojstva splava na osnove 2 Co – Ti – Al, poluchennogo metodom SVS-pressovaniya [Electro-physical properties of 2 Co – Ti – Al alloy synthesized by SHS-densification]. Perspektivnye Materialy — Advanced Materials (in Russ), 2020, no. 1, p. 5 – 12. DOI: 10.30791/1028-978X-2020-1-5-12

Mechanism of montmorillonite sorption properties inversion by cation surfactant

T. V. Kon’kova, A.P. Rysev, E.V. Mishchenko

Organo-mineral derivatives of montmorillonite, which are modified by quaternary alkyl-ammonium salts, are the prospective adsorbents for water treatment. They can adsorb heavy metal anions, as well as anion dyes and pesticides. In present investigation the understanding of the mechanism of the anion adsorption has been expanded. The montmorillonite treated by the didecyldimethylammonium chloride cation surfactant has been investigated. The high rate of chromate oxoanion adsorption, the relationship between the ability to adsorb anions and the elektrokinetic potential sign and the pH-dependence of adsorption suggests anions are adsorbed onto silanol and aluminol groups of the aluminosilicate layer edge surface. The re-distribution of access to various types of mineral surface is the mechanism of inversion of the adsorption ability. The inner negative charged surface is screened by the double layer of the surfactant molecules, which are blocked interlayer space. The surfactant cations are not hydrated. As a result, the montmorillonite is not delaminated in aqua medium.

 

Keywords: montmorillonite, anion-exchange adsorbent, cation surfactant.

 

DOI: 10.30791/1028-978X-2020-1-13-20

 

Kon’kova Tatiana — D. Mendeleev University of Chemical Technology of Russia (Moscow, 125840, ul. Geroev Panfilovtsev 20/1), Dr Sci (Eng), professor, Department of inorganic substances technology and electrochemical process, specialist in the field of heterogeneous catalysis and adsorption. E-mail: kontat@list.ru.

Rysev Anton — D. Mendeleev University of Chemical Technology of Russia (Moscow, 125840, ul. Geroev Panfilovtsev 20/1), postgraduate student, Department of inorganic substances technology and electrochemical process. E-mail: zuril@inbox.ru.

Mishchenko Ekaterina — D. Mendeleev University of Chemical Technology of Russia (Moscow, 125840, ul. Geroev Panfilovtsev 20/1), master, Department of nanomaterials and nanotechnology. E-mail: mishchenkoek@list.ru.

Reference citing

Kon’kova T.V., Rysev A.P., Mishchenko E.V. Mekhanizm inversii sorbcionnyh svojstv montmorillonita kationnym poverhnostno-aktivnym veshchestvom [Mechanism of montmorillonite sorption properties inversion by cation surfactant]. Perspektivnye Materialy — Advanced Materials (in Russ), 2020, no. 1, p. 13 – 20. DOI: 10.30791/1028-978X-2020-1-13-20

 
Influence of low-temperature plasma and steam sterilization on the properties of track membranes made
of polyethylene terephthalate

E. O. Filippova, D. A. Karpov, V. F. Pichugin, M. Ulbricht

In the present work, data on the synergistic effect of plasma modification and steam sterilization on the properties of track membranes based on polyethylene terephthalate are presented. It has been found that the action of hot steam at a pressure changes the topography of the TM surface with the formation of protuberances 300 – 400 nm high at the surface of the large oval shape with a density of up to 0.007 protrusions/μm2, increases the surface roughness by 40%, the contact angle of wetting by 9 – 18 degrees membranes and 36.8 – 39.6º plasma-modified membranes, and also reduces their surface energy to the initial values of the original 33 mJ/m2. The observed changes are related to surface degradation and hydrolysis reaction, which leads to decarboxylation, cyclization and, as a consequence, to the increase of cyclic trimers on the surface of the material, which is manifested in a change in the roughness and in the decrease in the hydrophilicity of the surface. Despite the morphological changes, as well as the decarboxylation of the surface, sterilization by hot steam under pressure does not lead to a noticeable change in the surface charge and the ζ-potential of the track membranes. Hot steam under pressure does not further crystallize the membrane, keeping the polymer with a crystalline phase 40 – 42 %. Thus, in order to preserve the plasma-acquired properties of the membrane used as a keratoimplant, it is necessary to look for a different sterilization method (gamma radiation, ethylene oxide sterilization) to avoid significant changes in the morphology and wettability of the material.

 

Keywords: track-etched membrane, polyethylene terephthalate, sterilization, wetting angle, low-temperature plasma at atmospheric pressure.

DOI: 10.30791/1028-978X-2020-1-21-32

Filippova Ekaterina — Tomsk Polytechnic University (Tomsk, 634050, Lenin Avenue, 30), engineer, specialist in the field of devices, systems and materials for medicine; Siberian state medical university (Tomsk, 634050, Moskovckii tract, 2), assistant of ophthalmology department, assistant of histology, cytology and embryology department, specialist in the field of reparative histology, corneal pathology and ophthalmotravmatology. E-mail: katerinabosix@mail.ru.

Karpov Dmitry — Tomsk Polytechnic University (Tomsk, 634050, Lenin Avenue, 30), engineer of general physics department, specialist in the field of microscopy. E-mail:
hardrijam@gmail.com.

Pichugin Vladimir — Tomsk Polytechnic University (Tomsk, 634050, Lenin Avenue, 30), professor, specialist in the field of condensed physics. E-mail: pichugin@tpu.ru.

Ulbricht Matthias — University of Duisburg-Essen (Germany, North Rhine-Westphalia, Essen, Universitaetsstr. 2), PhD, professor of Chemie II department, specialist in the field of membrane technologies.

Reference citing

Filippova E.O., Karpov D.A., Pichugin V.F., Ulbricht M. Issledovanie vliyaniya nizkotemperaturnoj plazmy i parovoj sterilizacii na svojstva trekovyh membran iz polietilentereftalata [Influence of low-temperature plasma and steam sterilization on the properties of track membranes made of polyethylene terephthalate]. Perspektivnye Materialy — Advanced Materials (in Russ), 2020, no. 1, p. 21 – 32. DOI: 10.30791/1028-978X-2020-1-21-32

 
Structure and properties of Ti28Ni50Hf22 powder alloy

S. S. Volodko, S. N. Yudin, V. V. Cheverikin, A. V. Kasimtsev,
G. V. Markova, T. A. Sviridova, B. V. Karpov,
S. S. Goncharov, I. A. Alimov

The effect of consolidation and heat treatment on the structure, local chemical composition, and martensitic transformation temperatures of the Ti28Ni50Hf22 powder alloy is shown. It is shown that, in the powder state, the alloy is characterized by an inhomogeneous distribution of Ti and Hf in the matrix, the concentration dispersion of which can reach 27 % at. Vacuum sintering and homogenizing annealing leads to equalization of the chemical composition. During sintering of the powder, the spread of Ti and Hf concentrations decreases from 27 to 4% at. Subsequent vacuum annealing at a temperature of 1000 °C for 4 hours for a sintered sample further reduces the concentration dispersion from 4 to 2 at. %, While increasing the annealing time from 4 to 16  hours does not affect the uniformity of the distribution of elements. It has been established that with a large heterogeneity of the chemical composition by differential scanning calorimetry (DSC) methods, it is not possible to fix the occurrence of the martensitic transformation in the alloy. However, homogenization of the alloy leads to the appearance of endothermic peaks in the DSC curve upon heating, as well as to a narrowing of the interval of reverse martensitic transformation.

 

Keywords: calcium hydride synthesis, an alloy with a high temperature shape memory effect, martensitic transformation, powder metallurgy, consolidation, heat treatment, structure.

DOI: 10.30791/1028-978X-2020-1-33-42

Volodko Sergey — Tula State University (300012, Russia, Tula, Lenin Avenue, 92), graduate student, specialist in the field of powder metallurgy. E-mail: volodko.sv@yandex.ru.

Yudin Sergey — Metsintez LLC (300041, Tula, pr. Krasnoarmeysky, 25), PhD (Eng), head of technology bureau, specialist in the field of powder metallurgy. E-mail: sergey-usn@mail.ru.

Cheverikin Vladimir — NUST “MISiS” (119049, Moscow, Leninsky Prospekt, 4), PhD (Eng), senior employee, specialist in the field of electron microscopy. E-mail:
cheverikin80@rambler.ru.

Kasimtsev Anatoly — Metsintez LLC (300041, Russia, Tula, Krasnoarmeyskiy pr., D. 25), doctor of technical sciences, director, specialist in the field of powder metallurgy. E-mail: metsintez@yandex.ru.

Markova Galina — Tula State University (300012, Russia, Tula, Lenin Avenue, 92),
Dr Sci (Eng), head of department, specialist in the study of phase transitions. E-mail:
ya.gal-markova2012@yandex.ru.

Sviridova Tatyana — NUST “MISiS” (119049, Russia, Moscow, Leninsky Prospekt, 4), PhD (Phys-Math), researcher, specialist in the field of X-ray methods for studying materials. E-mail: tim-17@yandex.ru.

Karpov Boris — Center for Metal Forming “SPC-OMD” on the basis of NUST “MISiS” (Moscow, Institutsky passage, 2, p. Mosrentgen), PhD (Eng), director, specialist in the field of metal deformation. E-mail: omd.misis@mail.ru.

Goncharov Sergey — Tula State University (300012, Russia, Tula, Lenin Avenue, 92), PhD (Eng), associate professor, specialist in the field of X-ray methods of materials research. E-mail: gss160154@yandex.ru.

Alimov Ivan — Tula State University (300012, Russia, Tula, Lenin Avenue, 92), undergraduate, specialist in the field of powder metallurgy. E-mail: alimov.iwann@mail.ru.

Reference citing

Volodko S.S., Yudin S.N., Cheverikin V.V., Kasimtsev A.V., Markova G.V., Sviridova T.A., Karpov B.V., Goncharov S.S., Alimov I.A. Struktura i svojstva poroshkovogo splava Ti28Ni50Hf22 [Structure and properties of Ti28Ni50Hf22 powder alloy]. Perspektivnye Materialy — Advanced Materials (in Russ), 2020, no. 1, p. 33 – 42. DOI: 10.30791/1028-978X-2020-1-33-42

 
Study of sulfur, diphenylguanidine
and 2-mercaptobenzothiazole effect on physical
and mechanical properties and structure 
of ultra-high molecular weight polyethylene

A. A. Dyakonov, S. N. Danilova, A. P. Vasilyev, A. A. Okhlopkova,
S. A. Sleptsova, A. A. Vasilyeva

This work presents the results of sulfur, diphenylguanidine and 2-mercaptobenzthiazole effect study on physical and mechanical properties and structure of ultra-high molecular weight polyethylene. It was found that modification of ultra-high molecular weight polyethylene with these fillers leads to significant increase of the strain-strength properties of polymeric composite material. Structural studies were conducted by means of scanning electron microscopy and X-ray diffraction analysis of ultra-high molecular weight polyethylene and polymeric composite material. It was shown that the modification of ultra-high molecular weight polyethylene with the fillers leads to the transformation of its supramolecular structure from spherulitic to fibrillar and causes a decrease in the degree of crystallinity. The results of study of the thermodynamic characteristics of polymer composites by the method of differential scanning calorimetry showed that the degree of crystallinity in composites decreased and enthalpy of fusion. By means of IR spectroscopy of polymeric composite material thin films, it was found that the use of diphenylguanidine and 2-mercaptobenzthiazole as fillers contributes to the formation of new oxygen-containing functional groups, which intensify interaction of fillers with ultra-high molecular weight polyethylene macromolecules.

Keywords: ultra-high molecular weight polyethylene, polymeric composite materials, mechanical properties, IR-spectroscopy.

DOI: 10.30791/1028-978X-2020-1-43-53

Dyakonov Afanasyi — M.K. Ammosov North-Eastern Federal University (46, Kulakovskovo st., Yakutsk, Russia, 677000), leader engineer, specialist in development and research of polymeric composites. E-mail: afonya71185@mail.ru.

Danilova Sakhayana — M.K. Ammosov North-Eastern Federal University (46, Kulakovskovo st., Yakutsk, Russia, 677000), PhD student. Specialisation: development and research of polymeric composites. E-mail: dbsksnsdjyj@mail.ru.

Vasilev Andrey — M.K. Ammosov North-Eastern Federal University (46, Kulakovskovo st., Yakutsk, Russia, 677000), leader engineer, specialist in development and research of polymeric composites. E-mail: gtvap@mail.ru.

Okhlopkova Aytalina — M.K. Ammosov North-Eastern Federal University (46, Kulakovskovo st., Yakutsk, Russia, 677000), head OP, Specialist in development and research of polymeric composites. E-mail: okhlopkova@yandex.ru.

Sleptsova Sardana — M.K. Ammosov North-Eastern Federal University (46, Kulakovskovo st., Yakutsk, Russia, 677000), PhD (Eng), senior researcher, expert in development and research of polymeric composites. E-mail: ssard@yandex.ru.

Vasileva Alina — Federal Research Centre “The Yakut Scientific Centre of the Siberian Branch of the Russian Academy of Sciences” (503-1, Oktyaborskaya st., Yakutsk, Russia, 677000), PhD, senior researcher, expert in development and research of polymeric composites. E-mail: kiir@mail.ru.

Reference citing

Dyakonov A.A., Danilova S.N., Vasilyev A.P., Okhlopkova A.A., Sleptsova S.A., Vasilyeva A.A. Issledovanie vliyaniya sery, difenilguanidina i 2-merkaptobenztiazola na fiziko-mekhanicheskie svojstva i strukturu sverhvysokomolekulyarnogo polietilena [Study of sulfur, diphenylguanidine and 2-mercaptobenzothiazole effect on physical and mechanical properties and structure of ultra-high molecular weight polyethylene]. Perspektivnye Materialy — Advanced Materials (in Russ), 2020, no. 1, p. 43 – 53. DOI: 10.30791/1028-978X-2020-1-43-53

 
Electrochromic nanostructure WO3 films prepared
by electrochemical deposition: receipt and properties

Aleksei V. Shchegolkov, Alexander V. Shchegolkov

In the present paper a study of the process of electrochemical deposition electrochromic films tungsten trioxide (WO3) at a different values of electric potential (voltage). The effect of the composition electrolyte based on peroxy-tungsten acid (PTA) and graphene oxide (GO) on the photoelectrochemical properties films WO3 were prepared and analyzed. The process of electrochemical deposition of films WO3 was carried out using two galvanic techniques: at constant voltage by the method of chronoamperometry (CA) and the method of multistep amperometry (MSA), the initial and final values of the electrodeposition potential were set to -0.5 and -1.5 V, as well as the number of cycles. The electrochemical deposition of thin films WO3 from a nanomodified electrolyte solution of 25 mM PTA-GO was performed by the MSA method, which makes it possible in this case to selectively precipitate the W+ and GO components from the electrolyte solution depending on the value of the chemical deposition potential. The photoelectrochemical characteristics of films WO3 were studied by cyclic voltammetry and optical spectroscopy. It was demonstrated that the optical properties of thin films WO3 are controlled by changing the conditions for the synthesis of the chemical electrolyte solution, during and after deposition.

 

Keywords: tungsten trioxide, electrochemical deposition, electrochromic film.

DOI: 10.30791/1028-978X-2020-1-54-63

Shchegolkov Aleksei — Tambov State Technical University (Tambov, 392000, Sovetskaya St., 106), graduate student of the Department of Engineering and technology for the production of nanoproducts, specialist in the development of electrochromic coatings, carbon nanomaterials. E-mail: alexxx5000@mail.ru.

Shchegolkov Alexander — Tambov State Technical University (Tambov, 392000, Sovetskaya St., 106), PhD (Eng), associate professor of the Department of Engineering and technology for the production of nanoproducts, specialist in the field of functional nano-modified materials for energy. E-mail: energynano@yandex.ru.

Reference citing

Shchegolkov Aleksei V., Shchegolkov Alexander V. Elektrohromnye nanostrukturnye plenki WO3 prigotovlennye elektrohimicheskim osazhdeniem: poluchenie i svojstva [Electrochromic nanostructure WO3 films prepared by electrochemical deposition: receipt and properties]. Perspektivnye Materialy — Advanced Materials (in Russ), 2020, no. 1, p. 54 – 63. DOI: 10.30791/1028-978X-2020-1-54-63

 
The features of bimetallic pipes and rods fabrication by explosive welding with the subsequent hot deformation

A. Yu. Malakhov, I. V. Saikov, I. V. Denisov, G. R. Saikova,
Yu. V. Gamin, B. A. Romantsev, P. Yu. Gulyaev

The research is devoted to fabrication of bimetallic pipes and cores by explosive welding and the subsequent hot deformation. The explosive welding made it possible to obtain continuous cylindrical double-layer billets with a combination of layers of steel 20 + 08Cr18Ni10Тi with almost 100 % continuity of adhesion of layers without surface defects and with a given residual deformation in diameter. It was determined that the composition of the atmosphere in the welding gap (at given welding modes and lengths of billets) does not lead to a reduction or elimination of defects in the welding zone. The subsequent hot plastic deformation did not affect the ratio of the component thicknesses of the layers. Based on the results obtained, a combined technology of manufacturing bimetallic pipes and rods with a combination of layers of steel 20 + 08Cr18Ni10Тi was developed and tested, which allows to obtain pipes and rods with corrosion-resistant coating and dimensions that are included in the range of industrially used pipes in the energy industry.

Keywords: explosive welding, bimetallic billets, hot deformation, cold working, microhardness of layers.

DOI: 10.30791/1028-978X-2020-1-64-73

Saikov Ivan — Merzhanov Institute of Structural Macrokinetics and Materials Science Russian Academy of Sciences (8 Academician Osipyan str., Chernogolovka, 142432, Russia), PhD, senior researcher, specialist in the field of synthesis and processing of materials by explosion. E-mail: revan.84@mail.ru.

Malakhov Andrey — Merzhanov Institute of Structural Macrokinetics and Materials Science Russian Academy of Sciences (8 Academician Osipyan str., Chernogolovka, 142432, Russia), junior researcher, specialist in explosion welding. E-mail: sir.malahov2009@yandex.ru.

Saikova Gulnaz — Merzhanov Institute of Structural Macrokinetics and Materials Science Russian Academy of Sciences (8 Academician Osipyan str., Chernogolovka, 142432, Russia), PhD, senior researcher, specialist in the field of physical chemistry of fast processes. E-mail: gulnaz-84@mail.ru.

Denisov Igor’ — Merzhanov Institute of Structural Macrokinetics and Materials Science Russian Academy of Sciences (8 Academician Osipyan str., Chernogolovka, 142432, Russia), PhD, researcher, specialist in the field of explosion welding and materials science. E-mail: ingener.denisov@yandex.ru.

Romantsev Boris — National University of Science and Technology MISIS (119049, Moscow, Leninskiy prospekt 4), Dr Sci (Eng), professor, specialist in the field of metal forming processes and equipment. E-mail: boralr@yandex.ru.

Gamin Yurii — National University of Science and Technology MISIS (119049, Moscow, Leninskiy prospect, 4), PhD, senior lecturer, specialist in the field of metal forming processes and equipment. E-mail: y.gamin@mail.ru.

Gulyaev Pavel — Yugra State University (Chekhova str., 16, Yugra, Khanty-Mansiisk, 628012 Russia), Dr Sci (Eng), professor, specialist in the field of material synthesis and control of fast processes. E-mail: gulyaev1954@mail.ru.

Reference citing

Malakhov A. Yu., Saikov I. V., Denisov I. V., Saikova G. R., Gamin Yu. V., Romantsev B. A., Gulyaev P. Yu. Issledovanie osobennostej polucheniya bimetallicheskih trub i prutkov svarkoj vzryvom c posleduyushchej goryachej deformaciej [The features of bimetallic pipes and rods fabrication by explosive welding with the subsequent hot deformation]. Perspektivnye Materialy — Advanced Materials (in Russ), 2020, no. 1, p. 64 – 73. DOI: 10.30791/1028-978X-2020-1-64-73

Fractal dimension of the fracture surface
of porous ZrO2 – MgO composite

A. S. Buyakov, Yu. A. Zenkina, S. P. Buyakova, S. N. Kulkov

The porous ZrO2 – MgO composites were studied. The influence of the composition and sintering time on the grain size, porosity and kinetics of pore sizes changes were investigated. The fractal dimension and surface roughness of the fracture surface were determined by the method of vertical cross sections by SEM images. The kinetics of a change in the micro- and macropores average size with an increase of sintering time indicates the pursuit of the system to establish a unimodal pore structure due to volume shrinkage and coalescence of pores. It was shown that changes in the fractal dimension reflect the stages of solid-phase sintering of porous ZrO2 – MgO composite, and occur only in the second stage of solid-phase sintering. The maximum fractal dimension, equal to 1.5, is reached at the transition from the first to the second stage of solid-phase sintering and observed when the ratio of large and small pores is 12.5, which indicates the formation of the most developed surface.

 

Keywords: Fractal dimension, roughness, vertical cross sections method, porous ZrO2 – MgO ceramics.

DOI: 10.30791/1028-978X-2020-1-74-82

Buyakov Ales — Institute of Strength Physics and Materials Science, Siberian Branch of the RAS (634055, Tomsk, Akademicheskiy ave., 2/4), junior researcher of the Laboratory of physics of nanostructured functional materials; Department of Strength Design of the Physics and Technology Faculty of the National Research Tomsk State University (634050, Tomsk, Lenin Ave., 36), PhD student; School of Engineering for New Industrial Technologies of the National Research Tomsk Polytechnic University (634050, Tomsk, Lenin Ave., 30), assistant, specialist in the field of ceramics and ceramic composites, porous materials. E-mail: Alesbuyakov@gmail.com.

Zenkina Yulia — School of Engineering for New Industrial Technologies of the National Research Tomsk Polytechnic University (634050, Tomsk, Lenin Ave., 30), master student, specialist in computer image processing. E-mail: yaz10@tpu.ru.

 

Buyakova Svetlana — Institute of Strength Physics and Materials Science, Siberian Branch of the RAS (634055, Tomsk, Akademicheskiy ave., 2/4), chief researcher of the Laboratory of physics of nanostructured functional materials; National Research Tomsk State University (634050, Tomsk, Lenin Ave., 36), professor of the Department of Strength Design of the Physics and Technology Faculty; School of Engineering for New Industrial Technologies of the National Research Tomsk Polytechnic University (634050, Tomsk, Lenin Ave., 30), professor, Dr Sci (Eng), specialist in the field of materials science, ceramics and ceramic composites, strength and reliability of structures. E-mail: Sbuyakova@ispms.tsc.ru.

Kulkov Sergey — Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences (634055, Tomsk, Akademicheskiy ave., 2/4), head of the laboratory of Physics of Nanostructured Functional Materials; National Research Tomsk State University (634050, Tomsk, Lenin Ave., 36), head of the Department of Strength Design of the Physics and Technology Faculty; National Research Tomsk Polytechnic University (634050, Tomsk, Lenin Ave., 30), professor of the School of Engineering for New Industrial Technologies, Dr Sci (Phys-Math), specialist in the field of materials science of ceramic and composite materials, condensed matter physics. E-mail: kulkov@ms.tsc.ru.

Reference citing

Buyakov A. S., Zenkina Yu. A., Buyakova S. P., Kulkov S. N. Fraktal'naya razmernost' poverhnosti razrusheniya poristogo ZrO2 – MgO kompozita [Fractal dimension of the fracture surface of porous ZrO2 – MgO composite]. Perspektivnye Materialy — Advanced Materials (in Russ), 2020, no. 1, p. 74 – 82. DOI: 10.30791/1028-978X-2020-1-74-82

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