rus
Competent opinion
M.G.Biryukov
60 YEARS AT THE FRONTEND OF THE DEVELOPMENT OF STE FOR RUSSIAN MICROELECTRONICS DOI: https://doi.org/10.22184/1993-8578.2022.15.5.248.252
On August 8, 1962 the USSR Council of Ministers issued Decree No. 831-358 "On the organization of a centre for microelectronics "Research Centre" (RC) and a complex of research institutes and design offices in the Union Republics". The SRI-350, nowadays Research Institute of Precision Machine Manufacturing, began to gradually develop the All-Union Centre for Microelectronics in Zelenograd – this date is celebrated as its birthday. So this year RIPMM celebrates its 60th anniversary.
The jubilee is a convenient occasion both to honour the colleagues who stood at the origins of Soviet electronic engineering and to recollect the achievements of the institute team in the development of special technological equipment for production of microelectronic components, as well as to compare plans for the future with the realities of the current market situation. Mikhail Georgievich Biryukov, Director General of RIPMM, gave an interview to our journal.
60 YEARS AT THE FRONTEND OF THE DEVELOPMENT OF STE FOR RUSSIAN MICROELECTRONICS DOI: https://doi.org/10.22184/1993-8578.2022.15.5.248.252
On August 8, 1962 the USSR Council of Ministers issued Decree No. 831-358 "On the organization of a centre for microelectronics "Research Centre" (RC) and a complex of research institutes and design offices in the Union Republics". The SRI-350, nowadays Research Institute of Precision Machine Manufacturing, began to gradually develop the All-Union Centre for Microelectronics in Zelenograd – this date is celebrated as its birthday. So this year RIPMM celebrates its 60th anniversary.
The jubilee is a convenient occasion both to honour the colleagues who stood at the origins of Soviet electronic engineering and to recollect the achievements of the institute team in the development of special technological equipment for production of microelectronic components, as well as to compare plans for the future with the realities of the current market situation. Mikhail Georgievich Biryukov, Director General of RIPMM, gave an interview to our journal.
Nanotechnology
M.V.Zubasheva, A.I.Akhmetova, Т.А.Smirnova, N.V.Shevlyagina, Yu.A.Smirnov, V.G.Zhukhovitsky, I.V.Yaminsky
CRYSTAL FORMATION IN BACTERIAL CELLS OF BREVIBACILLUS LATEROSPORUS DOI: https://doi.org/10.22184/1993-8578.2022.15.5.254.261
Bacillus Brevibacillus laterosporus (Bl) is a promising source of bacterial insecticides. The crystal-forming ability of Bl bacteria has not been established until recently. Bacterial cells of Brevibacillus laterosporus were characterized with the aid of scanning and transmission electron microscopy. The formation of protein crystals in bacteria from the first stages of nucleation in the cells up to the stage of free crystals was studied. Molecular resolution images of the crystals have been obtained and the crystal lattice parameters have been determined. In the case of entomocidal bacilli, crystalline protein toxins are formed in the cells, which lead to death of insects after absorption by the bacteria. This is the defense mechanism of these bacterial cells. In such case, the crystals perform the protective function of living organisms.
CRYSTAL FORMATION IN BACTERIAL CELLS OF BREVIBACILLUS LATEROSPORUS DOI: https://doi.org/10.22184/1993-8578.2022.15.5.254.261
Bacillus Brevibacillus laterosporus (Bl) is a promising source of bacterial insecticides. The crystal-forming ability of Bl bacteria has not been established until recently. Bacterial cells of Brevibacillus laterosporus were characterized with the aid of scanning and transmission electron microscopy. The formation of protein crystals in bacteria from the first stages of nucleation in the cells up to the stage of free crystals was studied. Molecular resolution images of the crystals have been obtained and the crystal lattice parameters have been determined. In the case of entomocidal bacilli, crystalline protein toxins are formed in the cells, which lead to death of insects after absorption by the bacteria. This is the defense mechanism of these bacterial cells. In such case, the crystals perform the protective function of living organisms.
Tags: brevibacillus laterosporus crystal formation protective function spores toxins transmission electron microscopy защитная функция образование кристаллов просвечивающая электронная микроскопия споры токсины
G.V.Stepanov, E.Yu. Kramarenko, P.A.Storozhenko
MAGNETODEFORMATION EFFECT AND VACUUM SEALING WITH A MAGNETOACTIVE ELASTOMER DOI: https://doi.org/10.22184/1993-8578.2022.15.5.266.271
The possibility of using magnetically active elastomers (MAE) in vacuum seals over an uneven surface is discussed. The material is characterised by high magnetodeformation and magnetostriction effects and is highly elastic. This material is able to be attracted to the sealed uneven surface under the action of the magnetic field and act as an effective sealant.
MAGNETODEFORMATION EFFECT AND VACUUM SEALING WITH A MAGNETOACTIVE ELASTOMER DOI: https://doi.org/10.22184/1993-8578.2022.15.5.266.271
The possibility of using magnetically active elastomers (MAE) in vacuum seals over an uneven surface is discussed. The material is characterised by high magnetodeformation and magnetostriction effects and is highly elastic. This material is able to be attracted to the sealed uneven surface under the action of the magnetic field and act as an effective sealant.
Tags: boron carbide film structure magnetron deposition of films neutron detector thin-film neutron converter карбид бора магнетронное нанесение пленок нейтронный детектор структура пленки тонкопленочный конвертер нейтронов
O.P.Posnansky
METHOD OF RENORMALIZATION OF THE RANDOM THREE-COMPONENT SYSTEM: DYNAMIC CHARACTERISTICS OF THE EFFECTIVE SUSCEPTIBILITY FUNCTION DOI: https://doi.org/10.22184/1993-8578.2022.15.5.272.289
In this work we investigated dynamic characteristics of the effective susceptibility of random three-component system. We have shown that in the case of large discrepancy of the static local susceptibilities effective dynamic properties are similar to the two-component system. If static coefficients of local dynamic susceptibilities of the components approach each other keeping relaxation parts different, then peculiarities of the three-component system become apparent. In this case the effective active part of the susceptibility possesses two plateaus and the relaxing part demonstrates two maximums. Amplitudes of the maximums for relaxing part depend on the dominating component. Also we investigated a case of double percolation showing that the effective properties can change two times during variation of the fraction of one of the components. In the first case the change is associated with creation of the percolation cluster built from the component (2), the second change is linked to the extrusion of the component (2) and (3) by the component (1) which builds a secondary percolation cluster.
METHOD OF RENORMALIZATION OF THE RANDOM THREE-COMPONENT SYSTEM: DYNAMIC CHARACTERISTICS OF THE EFFECTIVE SUSCEPTIBILITY FUNCTION DOI: https://doi.org/10.22184/1993-8578.2022.15.5.272.289
In this work we investigated dynamic characteristics of the effective susceptibility of random three-component system. We have shown that in the case of large discrepancy of the static local susceptibilities effective dynamic properties are similar to the two-component system. If static coefficients of local dynamic susceptibilities of the components approach each other keeping relaxation parts different, then peculiarities of the three-component system become apparent. In this case the effective active part of the susceptibility possesses two plateaus and the relaxing part demonstrates two maximums. Amplitudes of the maximums for relaxing part depend on the dominating component. Also we investigated a case of double percolation showing that the effective properties can change two times during variation of the fraction of one of the components. In the first case the change is associated with creation of the percolation cluster built from the component (2), the second change is linked to the extrusion of the component (2) and (3) by the component (1) which builds a secondary percolation cluster.
Tags: double percolation hierarchical model polychromatic percolation renormalization method static and dynamic effective susceptibility двойная перколяция иерархическая модель метод ренормализации полихроматическая перколяция статическая и динамическая эффективная восприимчивость
Nanomaterials
A.G.Kolesnikov, Yu.A.Kryukov, N.V.Gorbunov, A.Kh.Abduev, A.Sh.Asvarov, A.K.Akhmedov,
LOW TEMPERATURE FORMATION OF BORON CARBIDE THIN FILMS ENRICHED BORON ISOTOPE 10B DOI: https://doi.org/10.22184/1993-8578.2022.15.5.290.299
Thin-film neutron converters based on boron carbide B4C, enriched with the 10B isotope, applied to thin substrates of aluminum, aluminum foil and polymer films of a large area, are a promising material for creating new neutron detectors. The application of B4C films by magnetron sputtering on such bases is greatly complicated by the need to heat the substrates to a temperature of 400 °C or more, which can lead to their deformation. It is shown that the use of ion assistance in the process of magnetron deposition of B4C leads to the possibility of forming films of nano-crystalline structure with high strength and flexibility, even when the temperature drops to 50 °C, and the use of an Al sublayer increases adhesion. B4C thin films were obtained on 0.5 × 100 × 100 mm2 and 0.5 × 280 × 400 mm2 aluminum substrates in an argon atmosphere at temperatures of 400, 200 and 50 °C. The structure, composition and refractive index of films on silicon wafers are studied. The flexibility of the resulting films and the low formation temperature make it possible to create neutron converters from 10B4C on thin polymer bases.
LOW TEMPERATURE FORMATION OF BORON CARBIDE THIN FILMS ENRICHED BORON ISOTOPE 10B DOI: https://doi.org/10.22184/1993-8578.2022.15.5.290.299
Thin-film neutron converters based on boron carbide B4C, enriched with the 10B isotope, applied to thin substrates of aluminum, aluminum foil and polymer films of a large area, are a promising material for creating new neutron detectors. The application of B4C films by magnetron sputtering on such bases is greatly complicated by the need to heat the substrates to a temperature of 400 °C or more, which can lead to their deformation. It is shown that the use of ion assistance in the process of magnetron deposition of B4C leads to the possibility of forming films of nano-crystalline structure with high strength and flexibility, even when the temperature drops to 50 °C, and the use of an Al sublayer increases adhesion. B4C thin films were obtained on 0.5 × 100 × 100 mm2 and 0.5 × 280 × 400 mm2 aluminum substrates in an argon atmosphere at temperatures of 400, 200 and 50 °C. The structure, composition and refractive index of films on silicon wafers are studied. The flexibility of the resulting films and the low formation temperature make it possible to create neutron converters from 10B4C on thin polymer bases.
Tags: boron carbide film structure magnetron deposition of films neutron detector thin-film neutron converter карбид бора магнетронная нанесение пленок нейтронный детектор структура пленки тонкопленочный конвертер нейтронов
Test & Measurement
A.O.Roenko (Dudnik), G.A.Armeev, E.S.Trofimchuk, I.V.Yaminsky
PORTABLE CELL FOR QUALITATIVE ASSESSMENT OF VAPOR PERMEABILITY OF FILM MATERIALS DOI: https://doi.org/10.22184/1993-8578.2022.15.5.308.318
A portable device for high-quality express measurement of vapor permeability of film materials has been developed. The paper describes in detail the design and electrical features of the device, as well as a universal method of qualitative measurement of vapor permeability. The functional of the cell is shown by the example of HDPE films deformed in supercritical carbon dioxide (SC-CO2) to various tensile strain. The article presents a number of direct experimental data (relative humidity in RH%, temperature in Celsius degrees), as well as the result of renormalization of relative humidity into absolute humidity units (vapor pressure/density) for use as a quantitative characteristic.
PORTABLE CELL FOR QUALITATIVE ASSESSMENT OF VAPOR PERMEABILITY OF FILM MATERIALS DOI: https://doi.org/10.22184/1993-8578.2022.15.5.308.318
A portable device for high-quality express measurement of vapor permeability of film materials has been developed. The paper describes in detail the design and electrical features of the device, as well as a universal method of qualitative measurement of vapor permeability. The functional of the cell is shown by the example of HDPE films deformed in supercritical carbon dioxide (SC-CO2) to various tensile strain. The article presents a number of direct experimental data (relative humidity in RH%, temperature in Celsius degrees), as well as the result of renormalization of relative humidity into absolute humidity units (vapor pressure/density) for use as a quantitative characteristic.
Tags: film materials high density polyethylene porous films supercritical carbon dioxide vapor permeability паропроницаемость пленочные материалы полиэтилен высокой плотности пористые пленки сверхкритический диоксид углерода
Equipment for nanoindustry
A.I.Belikov, L.L.Kolesnik, O.E.Alikhanov, V.E.Brazhnikov
DEVELOPMENT OF A VACUUM TRIBOMETRIC STAND FOR HIGH-TEMPERATURE TESTING AND RESEARCH OF SOLID-LUBRICATING MoS2 COATINGS DOI: https://doi.org/10.22184/1993-8578.2022.15.5.300.306
The development results of a vacuum tribometric stand for high-temperature tribological tests of materials and coatings under high vacuum conditions at temperatures up to 300 °C are presented. The stand implements the standard method of tribological tests for reciprocating sliding of the ball along the plane (ASTM G133-05). The molybdenum disulfide solid-lubricant coatings deposited by magnetron sputtering of a MoS2 target at a various modes resource tests results are presented.
DEVELOPMENT OF A VACUUM TRIBOMETRIC STAND FOR HIGH-TEMPERATURE TESTING AND RESEARCH OF SOLID-LUBRICATING MoS2 COATINGS DOI: https://doi.org/10.22184/1993-8578.2022.15.5.300.306
The development results of a vacuum tribometric stand for high-temperature tribological tests of materials and coatings under high vacuum conditions at temperatures up to 300 °C are presented. The stand implements the standard method of tribological tests for reciprocating sliding of the ball along the plane (ASTM G133-05). The molybdenum disulfide solid-lubricant coatings deposited by magnetron sputtering of a MoS2 target at a various modes resource tests results are presented.
Tags: antifriction coatings coefficient of friction high temperature tests molybdenum disulfide mos2 solid lubricating coatings tribometric bench vacuum mechanisms wear resistance антифрикционные покрытия вакуумные механизмы высокотемпературные испытания дисульфид молибдена износостойкость коэффициент трения твердосмазочные покрытия трибометрический стенд