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Your search keyword '"D. D. Gulamova"' showing total 2 results
Start Over Author "D. D. Gulamova" Journal technical physics
2 results on '"D. D. Gulamova"'

1. The Investigation of Critical Temperature Tc of Homophase Superconductors Bi1.7Pb0.3Sr2Ca(n– 1)CunOy (n = 3, 4, 5) and Current–Voltage Characteristics of InP Semiconductor–Bi/Pb Superconductor (2223, 2234, 2245) Sandwich Pairs

Author

S. Kh. Bobokulov, D. G. Chigvinadze, S. M. Ashimov, A. V. Karimov, D. D. Gulamova, O. V. Magradze, Kh. N. Bakhronov, and Zh. Sh. Turdiev

Subjects
Superconductivity, Materials science, Physics and Astronomy (miscellaneous), business.industry, Analytical chemistry, chemistry.chemical_element, Microstructure, Bismuth, Semiconductor, Electrical resistance and conductance, chemistry, Current voltage, Condensed Matter::Superconductivity, Cuprate, Anisotropy, business
Abstract

The electrophysical properties of semiconductor–superconductor sandwich pairs (InP–Bi/Pb 2223, 2234, 2245) are investigated, in which homophase superconductors based on bismuth cuprates with high reproducible critical temperatures of superconducting transition Tc = 107–180 K are used. The advantage of melt solar technology for obtaining superconducting materials is demonstrated. The microstructure and phase composition of strongly anisotropic superconductors with nominal composition Bi1.7Pb0.3Sr2Ca(n– 1)CunOy (n = 3, 4, 5) are researched. A technique of experimental determination of superconducting transition critical temperatures Tc in single-phase and homophase HTSC samples is presented. The current–voltage characteristics of InP–Bi/Pb pairs are investigated. The relationship between the electrical resistance of sandwich pairs and superconductor critical temperature Tc is established.

Published
2019
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2. Phase composition and properties of superconducting ceramics based on Bi1.7Pb0.3Sr2Ca2Cu3O y precursors fabricated by melt quenching in a solar furnace

Author

O. V. Magradze, D. E. Uskenbaev, J. G. Chigvinadze, G. Fantozzi, D. D. Gulamova, Matériaux, ingénierie et science [Villeurbanne] (MATEIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Matériaux, ingénierie et science [Villeurbanne] ( MATEIS ), Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique ( CNRS ) -Institut National des Sciences Appliquées de Lyon ( INSA Lyon ), and Université de Lyon-Institut National des Sciences Appliquées ( INSA ) -Institut National des Sciences Appliquées ( INSA )

Subjects
010302 applied physics, Superconductivity, Quenching, Materials science, Physics and Astronomy (miscellaneous), Solar furnace, [ SPI.MAT ] Engineering Sciences [physics]/Materials, 02 engineering and technology, Crystal structure, Substrate (electronics), 021001 nanoscience & nanotechnology, 01 natural sciences, Magnetic susceptibility, [SPI.MAT]Engineering Sciences [physics]/Materials, Chemical engineering, visual_art, Phase composition, 0103 physical sciences, visual_art.visual_art_medium, Ceramic, 0210 nano-technology
Abstract

cited By 1; International audience; Production of superconducting ceramics based on precursors with rated composition Bi1.7Pb0.3Sr2Ca2Cu 3O y is studied. The precursors are synthesized in a solar furnace by melt rapid quenching. The phase composition of the samples is examined by microstructural and X-ray analyses. The temperature dependences of the resistance and magnetic susceptibility are measured. The influence of the composition and crystal structure of the substrate on texturing in the Bi-Sr-Ca-Cu-O system is studied. It is found that the type of quenching plays a significant role, while the type of substrate is of minor significance. © 2009 Pleiades Publishing, Ltd.

Published
2009
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