Zobrazeno 1 - 10
of 116
pro vyhledávání: '"C. Nguyen Van Huong"'
Publikováno v:
Superconductor Science and Technology. 14:59-65
The effect of ZrO2 addition (1 wt% and 5 wt%) on the superconducting properties of sintered DyBa2Cu3Oy ceramics was studied. The doping was found to assist the formation of secondary phase inclusions such as Dy2BaCuO5 (211), BaZrO3 and CuO. No traces
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cdda53e24773fa31586a30d1f9c5a55
https://doi.org/10.1088/0953-2048/14/2/301
https://doi.org/10.1088/0953-2048/14/2/301
Publikováno v:
Superconductor Science and Technology. 12:1156-1162
The correlation between microstructure and superconducting properties of copper-deficient sintered DyBa2Cu3-xOy (0 x0.4) ceramics doped by 1 wt% Pt has been studied. For non-stoichiometric compositions with x0.2 magnetoresistance measurements showed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::101b93f7f1ad1ae597e4fdd3b8e41203
https://doi.org/10.1088/0953-2048/12/12/327
https://doi.org/10.1088/0953-2048/12/12/327
Publikováno v:
Materials Science Forum. :723-726
The superconducting transport properties (V-I, J c -B and I c -T) were correlated with a systematic characterization of the grain boundary microstructure, via TEM observation and local chemical analysis in STEM by EDX on YBa 2 Cu 3-x O y (D samples)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af7bc1dd3b8c2832f1a34aa294ca0960
https://doi.org/10.4028/www.scientific.net/msf.294-296.723
https://doi.org/10.4028/www.scientific.net/msf.294-296.723
Publikováno v:
Superconductor Science and Technology. 11:467-473
The correlation between microstructure and superconducting properties of (deficient (D) samples) and (substituted (S) samples) fabricated by the citrate gel process has been studied. In both types of samples nonsuperconducting phases such as and CuO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65be84f9b2510b2e9526e4e34210893d
https://doi.org/10.1088/0953-2048/11/5/005
https://doi.org/10.1088/0953-2048/11/5/005
Publikováno v:
Superconductor Science and Technology. 10:85-94
The incorporation of silver in DyBCO ceramics was studied by EDX in TEM and correlated with the superconducting properties through R - T, I - V characteristics and critical current as a function of an external magnetic field. Two types of doping were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c36b25916fd158fcc8ae8d4c96c19db
https://doi.org/10.1088/0953-2048/10/2/003
https://doi.org/10.1088/0953-2048/10/2/003
Publikováno v:
Journal of Materials Science. 32:177-184
Characterization of the YBa2Cu3O7–Au composite at room temperature has been performed using X-ray photoelectron spectroscopy. Measured spectra on the chemically etched surfaces have been found to be representative of the bulk material. Analysis of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5366027e0f41397ad2c6be978037bcd5
https://doi.org/10.1023/a:1018599821222
https://doi.org/10.1023/a:1018599821222
Publikováno v:
Journal of Materials Science. 32:1725-1731
The crystal structure (determined from X-ray diffraction measurements), the superconducting properties (from resistivity measurements) and electronic structure (from X-ray photoelectron spectroscopy investigation) of Bi2Sr2-xLaxCaCu2O8 compounds (sub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69870bfbc81a9c3ebbb41596322b9a72
https://doi.org/10.1023/a:1018571832434
https://doi.org/10.1023/a:1018571832434
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 73:293-304
The influence of Pb doping on the electronic structure of Bi 2 Sr 2 CaCu 2 O 8+δ superconductor was investigated by X-ray photoelectron spectroscopy. A surface preparation procedure consisting of an annealing in UHV at 450°C was used to obtain surf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdd12d56e0121c5ed4f173e82fe4ecdb
https://doi.org/10.1016/0368-2048(94)02288-7
https://doi.org/10.1016/0368-2048(94)02288-7
Publikováno v:
Journal of Materials Science. 28:6418-6426
By X-ray diffraction and photoelectron spectroscopy, we have demonstrated that Au is incorporated in the YBCO lattice up to a concentration 0.1. An XPS study gave evidence for an electronic valence state Au1+. Its replacement in the Cu(1) site appear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d63d44b8377e4f8d3d225d2f37265e0
https://doi.org/10.1007/bf01352206
https://doi.org/10.1007/bf01352206
Publikováno v:
Superconductor Science and Technology. 6:327-336
A barium deficiency in the initial composition for the synthesis of high-temperature superconductors (HTSC), i.e. a nominal (RE Ba2-xCuxOz) composition with 0 < or = x < or = 1 leads to different materials depending on the nature of the rare earth. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afb9c4a46e477b35b2681d752cbeba18
https://doi.org/10.1088/0953-2048/6/5/004
https://doi.org/10.1088/0953-2048/6/5/004