Персона:
Стариковский, Александр Сергеевич

Организационные подразделения

Организационная единица

Институт лазерных и плазменных технологий

Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.

Фамилия

Стариковский

Имя

Александр Сергеевич

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Теперь показываю 1 - 8 из 8

Только метаданные
The influence of cryogenic temperature on characteristics of superconducting maglev systems
(2019) Osipov, M.; Starikovskii, A.; Abin, D.; Pokrovskii, S.; Anischenko, I.; Rudnev, I.; Осипов, Максим Андреевич; Стариковский, Александр Сергеевич; Абин, Дмитрий Александрович; Покровский, Сергей Владимирович; Мартиросян, Ирина Валерьевна; Руднев, Игорь Анатольевич
© 2019 International Institute of Refrigeration. All rights reserved. In our report, we present new results on investigation of the influence of temperature on the levitation force between the stacks of high temperature superconducting tapes (or coated conductor - CC tapes) and a permanent magnets. We studied the changing in value of levitation force at decreasing of temperature down to 30 K for field cooled (FC) and zero field cooled (ZFC) modes for various number of tape in the stack. In the measurements we used 12 mm wide commercially available CC-tape manufactured by SuperOx. The tapes were cut into pieces 12 mm x 12 mm. The number of layers in the stack ranged from 5 to 100. Cooling of the CC-tapes stack was carried out in cryo-free cryostat. Temperature range was from 30 to 80 K. Results showed that temperature has much influence on levitation force in ZFC mode whereas for FC mode the influence of temperature on levitation force is insignificant. The experimental data were compared with the results of calculations performed by using COMSOL Multiphysics. The obtained results are very useful for the practical application in magnetic levitation based systems.
Только метаданные
Influence of long-term exposure of high-density direct current on the current carrying ability of 2G HTSC tapes based on the REBCO
(2021) Veselova, S.; Osipov, M.; Starikovskii, A.; Anishenko, I.; Pokrovskii, S.; Abin, D.; Rudnev, I.; Веселова, Светлана Владимировна; Осипов, Максим Андреевич; Стариковский, Александр Сергеевич; Мартиросян, Ирина Валерьевна; Покровский, Сергей Владимирович; Абин, Дмитрий Александрович; Руднев, Игорь Анатольевич
© Published under licence by IOP Publishing Ltd.In this work, the phenomena of electromigration in samples of HTSC tapes of the 2nd generation was investigated. Samples of REBa2Cu3O7-x (REBCO, where RE is a rare earth element) were used in the form of a copper-plated tape. A superconducting bridge was preliminarily formed on the surface of the tape by the method of chemical etching (to decrease the total value of critical current). The sample was exposed by a direct current of I = 0.9Ic . The duration of exposure was up to 350 hours. The value of the current density in the area of the bridge was J = 1.38 1010A/m2. The measurements were carried out at liquid nitrogen temperature (77 K). The influence of the electric current flow on the value of the sample critical current is controlled at the selected time intervals. The experiment showed high stability of the tape under the specified conditions.
Только метаданные
Scalable superconductive magnetic bearing based on non-closed CC tapes windings
(2021) Osipov, M.; Anishenko, I.; Starikovskii, A.; Abin, D.; Pokrovskii, S.; Podlivaev, A.; Rudnev, I.; Осипов, Максим Андреевич; Мартиросян, Ирина Валерьевна; Стариковский, Александр Сергеевич; Абин, Дмитрий Александрович; Покровский, Сергей Владимирович; Подливаев, Алексей Игоревич; Руднев, Игорь Анатольевич
A new type of scalable high-temperature superconducting magnetic bearing is proposed. The bearing is based on the multilayer open windings made of coated conductor-tapes (CC-tapes). To demonstrate the possibility of manufacturing such a bearing construction we have built a working prototype and studied its characteristics. The manufactured model of bearing includes a stator, consisting of three multilayer rings (CC-tapes pancake coils) of 12 mm CC-tape and a composite rotor consisting of three rings of permanent magnets, each composed of 16 NdFeB 10 x 10 mm permanent magnets. We showed a contactless levitation of rotor relative to stator, as well as rotation of rotor and we measured load curves, namely the dependence of the rotor displacement on restoring force for axial and radial loads. Numerical simulation of bearing load characteristics has been carried out by the finite element method in the Comsol Multiphysics software. The calculation results are in a good agreement with the experimental data.
Только метаданные
The influence of temperature on levitation properties of CC-tape stacks
(2021) Osipov, M.; Starikovskii, A.; Anishchenko, I.; Pokrovskii, S.; Abin, D.; Rudnev, I.; Осипов, Максим Андреевич; Стариковский, Александр Сергеевич; Мартиросян, Ирина Валерьевна; Покровский, Сергей Владимирович; Абин, Дмитрий Александрович; Руднев, Игорь Анатольевич
© 2021 IOP Publishing Ltd.This article presents the study of the temperature effect on the levitation characteristics of stacks of CC-tapes from various manufacturers SuperOx, Theva and Sunam. Tapes differ in the values of the critical current density, architecture, and parameters of the metal substrate. Stacks of tapes were assembled from 12 by 12 mm square pieces of CC-tape. The number of elements in the stacks varied from 5 to 70. The dependences of the levitation force Fz (the vertical component of the force in the system permanent magnet - HTSC stack) on temperature were obtained both in zero field cooling (ZFC) and in field cooling (FC) modes. The measurements were carried out in the temperature range of 32-100 K. We have established that, down to the minimum operating temperatures, a decrease in temperature leads to a continuous increase in levitation force in ZFC mode. In FC mode, the Fz value tends to saturate after the initial increase in force. Cooling below the boiling point of liquid nitrogen up to 65 K gives a levitation force gain of 5%-10%. At the same time, cooling to 35 K gives an increase in levitation force by 7%-23%. It was found that an increase in the number of elements in the stack from 5 to 70 leads to an increase in the levitation force with a tendency to saturation for all temperatures studied. Excellent agreement between the experimental and calculated dependences of the levitation force on temperature and the number of elements in the stacks is demonstrated. Calculations show that for Sunam tapes, 90% of the levitation force is achieved with a stack thickness of 100 tapes at the boiling point of liquid nitrogen, and with 70 tapes at lower temperatures. The distributions of the magnetic field during the approach/removal of magnets, as well as the distribution of the trapped magnetic flux at different temperatures and numbers of elements in the stacks are modelled.
Только метаданные
Influence of temperature on levitation characteristics of the system CC tapes – Permanent magnets at lateral displacements
(2022) Osipov, M.; Starikovskii, A.; Anishchenko, I.; Pokrovskii, S.; Abin, D.; Rudnev, I.; Осипов, Максим Андреевич; Стариковский, Александр Сергеевич; Мартиросян, Ирина Валерьевна; Покровский, Сергей Владимирович; Абин, Дмитрий Александрович; Руднев, Игорь Анатольевич
© 2021 Elsevier B.V.For the development of levitation bearings and transport systems based on coated conductor (CC) tapes, it is essential to know not only information about the levitation force during vertical displacement, but also the stability of the system under lateral displacements of a superconductor relative to permanent magnets, as well as the effect of temperature on the lateral and vertical forces. In this paper, we present new experimental results of effect of temperature on levitation and lateral forces of CC tape stacks subjected to cyclic lateral displacements relative to the position of the permanent magnet (PMG). For the measurements, we used a 12 mm wide commercially available CC tape manufactured by Sunam. The tape was cut into 12 × 12 mm squares and stacked in stacks of 10, 30, and 50 elements. The measurements were carried out in both zero-field cooling mode (ZFC) and field cooling mode (FC). After the cooling procedure, cyclic lateral movements of the superconductor over the permanent magnet were performed. Measurements of the vertical and lateral components of the force of interaction between the stack of CC tapes and PMG were performed. The measurements were carried out at various superconductor temperatures in the range 33–77.4 K. The experimental results allow us to conclude that both the levitation force and lateral restoring force decrease with increasing temperature. An evident hysteresis of the vertical and horizontal components of the levitation force is noticeable. The hysteresis decreases with an increasing number of elements in the stack and increases with increasing temperature up to 77.4 K.
Только метаданные
Magnetic-Force Characteristics of Hybrid Levitation Systems Based on CC-Tapes
(2022) Osipov, M.; Starikovskii, A.; Anishchenko, I.; Pokrovskii, S.; Abin, D.; Rudnev, I.; Осипов, Максим Андреевич; Стариковский, Александр Сергеевич; Мартиросян, Ирина Валерьевна; Покровский, Сергей Владимирович; Абин, Дмитрий Александрович; Руднев, Игорь Анатольевич
One of the common applications of high-temperature superconductors is levitation transport. Recently, a number of works have been aimed at increasing the levitation force of levitation transport by using the repulsive force between permanent magnets. The use of permanent magnets significantly increases the levitation force, but also greatly reduces the lateral stability of the system. Then the main role of the superconductor is vertical and lateral stabilization of the system. In our work, we present new experimental results on the study of the levitation force and lateral stability of hybrid maglev systems of various configurations. Configurations are considered when the superconductor is between two magnet assemblies and when the superconductor and the carriage magnet assembly are arranged in series along the guidway. A commercially available 12 mm wide CC-tape manufactured by SuperOx was used for measurements. Both the vertical levitation force and the lateral restoring force were measured. Based on the experimental data, we concluded that the configuration with the separate arrangement of the carriage magnets and the tape stack is more advantageous from the point of view of the stability of the levitation force and the lateral stability of the system. The results obtained may be relevant for the development of hybrid levitation systems using permanent magnets to increase the levitation force.
Только метаданные
Influence of ion irradiation on the critical characteristics of second-generation HTSC tapes
(2022) Kulevoy, T.; Fedin, P.; Pryanishnikov, K.; Batulin, R.; Rudnev, I.; Abin, D.; Pokrovskii, S.; Anishchenko, I.; Starikovskii, A.; Osipov, M.; Руднев, Игорь Анатольевич; Абин, Дмитрий Александрович; Покровский, Сергей Владимирович; Мартиросян, Ирина Валерьевна; Стариковский, Александр Сергеевич; Осипов, Максим Андреевич
IEEEOne of the practical applications of the second-generation HTSC tapes (or CC coated conductors) is in accelerator magnets. During operation, the superconducting winding will inevitably be exposed to ionizing radiation with the formation of radiation defects in the HTSC layer. This process can lead to a gradual degradation of both the critical characteristics and the structure of the HTSC. The report presents the results demonstrating the change in the critical temperature and critical current (down to a complete loss of superconducting properties) of the second-generation HTSC tapes under irradiation with 6.3 MeV Cu ions in a wide range of fluences. The critical temperature was measured by a four-contact method. The critical current was calculated from the magnetization curves, which were measured in the temperature range from 5 to 77 K and magnetic fields up to 8 T. It was demonstrated that the critical current is more sensitive to radiation defects than the critical temperature is.
Только метаданные
Influence of the critical current on the levitation force of stacks of coated conductor superconducting tapes
(2019) Osipov, M.; Starikovskii, A.; Abin, D.; Rudnev, I.; Осипов, Максим Андреевич; Стариковский, Александр Сергеевич; Абин, Дмитрий Александрович; Руднев, Игорь Анатольевич
The majority of superconducting levitation systems are based on bulk superconductors. However, recently, stacks of coated conductor superconducting tapes (CC-tapes) have shown a proven potential to act as an alternative to superconducting bulks as components of a magnetic levitation system. This work primarily focuses on the influence of the critical current density on the levitation force of stacks of CC-tapes. The levitation force was measured for stacks of tapes made by different manufacturers, with different values of the critical current and substrate thickness. In our experiment, we used superconducting tapes manufactured by SuperOx, Theva and Sunam. The tapes were cut into 12 mm square pieces. The number of layers in the stack ranged from 10 to 100. Levitation forces were studied for all types of tapes and for various numbers of layers in the stack. As expected, it was found that a higher critical current corresponds to a higher levitation force. The levitation force of the stacks assembled from tapes with a higher critical current tends to saturate for lower numbers of elements in the stack.