Zobrazeno 1 - 10
of 48
pro vyhledávání: '"O Smrčková"'
Publikováno v:
physica status solidi c. 3:3065-3068
Chemical substitutions may change structural and physical parameters in HTS. Substituents influence formation of Bi-2223 phase, pinning centers, intergrain connection and change hole carrier concentration. Bulk samples with partial substitution of ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08500e91076abfbf4a3139c3ad342416
https://doi.org/10.1002/pssc.200567031
https://doi.org/10.1002/pssc.200567031
Publikováno v:
physica status solidi c. 3:3077-3080
In the first part of the work two routes of preparation of undoped superconductor Bi-2223 are compared. The influence of addition of extra PbO is studied as well. The route that leads to higher content of the phase 2223 is then chosen as the appropri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::622f2d292cf89782327c4f3e79c399a2
https://doi.org/10.1002/pssc.200567042
https://doi.org/10.1002/pssc.200567042
Publikováno v:
Superlattices and Microstructures. 21:393-396
The influence of the addition of B 2 O 3 on the properties of the oxide ceramic materials Bi–Pb–Sr–Ca–Cu–O was investigated. The samples with nominal com-posi-tion Bi a Pb b B c Sr 2 Ca 2 Cu 3 O x ( a = 0.8–1.6, b = 0.06–0.26, c = 0.05
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::225bd4078336b21d9d0d74d9a8c4c95e
https://doi.org/10.1006/spmi.1996.0407
https://doi.org/10.1006/spmi.1996.0407
Publikováno v:
Superconductor Science and Technology. 9:761-765
The effect of the stochiometric replacement of Pb and Bi by V in the Bi - Sr - Ca - Cu - O system has been studied. The content of Bi, Pb and V in the was altered according to the formula: a + b + c = 4 (a = 2.6 - 3.6, b = 0 - 0.8, c = 0 - 0.6). The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7d46a3cfefa71a577efd8f1790ab8ce
https://doi.org/10.1088/0953-2048/9/9/009
https://doi.org/10.1088/0953-2048/9/9/009
Publikováno v:
Physica B: Condensed Matter. 321:295-297
Samples with partial cationic substitution for bismuth in Bi(Pb)-Sr-Ca-Cu-O system were prepared to systematically examine phase formation due to different concentrations of B, Al, Ga and In. The elements were substituted in the range x = 0-0.5 in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03d3e6e4f6efc62e0d91f7bacb5e827c
https://doi.org/10.1016/s0921-4526(02)00864-5
https://doi.org/10.1016/s0921-4526(02)00864-5
Publikováno v:
Physica B: Condensed Matter. 321:292-294
Samples with the nominal composition Bi 1.8-x A x Pb 0.26 Sr 2 Ca 2 Cu 3 O y (x = 0-0.5; A = B, Al, Ga, In) were prepared. Measurements of resistivity, AC susceptibility, critical current density and magnetization have been used for characterization
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6535529b97c0b744c8a23d2ab025f81c
https://doi.org/10.1016/s0921-4526(02)00863-3
https://doi.org/10.1016/s0921-4526(02)00863-3
Publikováno v:
Journal of Superconductivity. 13:899-901
The changes in volume of superconducting high-T c (2223) phase of the high-temperature superconductors (HTSC) with nominal composition Bi 3.2 Pb 0.8 Sr 4 Ca 5 Cu 7 O x are studied by magnetic susceptibility during soaking of material in water and mor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cef9f1855e8282a2de4aab6e9ad0f3fc
https://doi.org/10.1023/a:1026429603418
https://doi.org/10.1023/a:1026429603418
Publikováno v:
Physica Status Solidi (a). 126:K63-K67
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0b899248a35873ba2d4b8e5c861bc17
https://doi.org/10.1002/pssa.2211260144
https://doi.org/10.1002/pssa.2211260144
Publikováno v:
Solid State Communications. 75:331-334
Changes of the resistance R(T) and the magnetic susceptibility χ(T) due to prolonged room temperature storing in various atmospheres have been studied on YBaCuO, BiSrCaCuO and (Bi, Pb)SrCaCuO ceramic superconductors. In all the samples studied the a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f068dde6ab492236e17a0ba86d07a26c
https://doi.org/10.1016/0038-1098(90)90906-r
https://doi.org/10.1016/0038-1098(90)90906-r
Publikováno v:
Physica C: Superconductivity. 167:188-197
The dependence of the resistive transition curve R(T) on measuring current and magnetic field along with AC and DC magnetic susceptibility χ(T) has been measured on ceramic superconductors of the nominal composition Bi0.7Pb0.3SrCaCu1.8Ox to elucidat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d060bcd0d8a9f3ccfaca8d886ae4a416
https://doi.org/10.1016/0921-4534(90)90503-7
https://doi.org/10.1016/0921-4534(90)90503-7