Zobrazeno 1 - 10
of 20
pro vyhledávání: '"C.J. Eastell"'
The interface of epitaxial c-axis-oriented (Bi, Pb)2Sr2Can-1 CunO2n+4+x thin films grown by rf sputtering on MgO substrates has been investigated by high-resolution transmission electron microscopy. It was found that, in spite of the roughness of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22a151de3dcf0a8e45b17d85bab08760
https://doi.org/10.1080/095008397179183
https://doi.org/10.1080/095008397179183
Autor:
J.W. Burgoyne, Crm Grovenor, M.J. Goringe, David Dew-Hughes, C.J. Eastell, C.G. Morgan, B.M. Henry
Bi(Pb)-2223/Ag powder in tube tapes have been examined by TEM. 5The tapes show good alignment and phase purity in the SEM but TEM investigations revealed a number of fine-scale, current-limiting, features. Such features include variation in grain bou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a67406948b284fb62e41d5adce4f98d6
https://ora.ox.ac.uk/objects/uuid:cb8dc426-aa51-44dc-b67e-86b5aee0ddbf
https://ora.ox.ac.uk/objects/uuid:cb8dc426-aa51-44dc-b67e-86b5aee0ddbf
The effect of processing conditions on microstructure and phase development has been investigated for TlBi-1223 tapes made by a melt processing route. Increasing loss of crystallinity and phase decomposition into Tl-1212 and SrCaCu-oxides is seen for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aada618a33edea7dfa6e307cce3ab7bf
https://ora.ox.ac.uk/objects/uuid:a7d5a5c3-9d4a-4a6a-acd1-01ab6f4f1447
https://ora.ox.ac.uk/objects/uuid:a7d5a5c3-9d4a-4a6a-acd1-01ab6f4f1447
Autor:
Vincenzo Boffa, J.C. Moore, M.J. Naylor, R. Bruzzese, M.J. Goringe, C.J. Eastell, S. Fox, Crm Grovenor
Publikováno v:
Journal of Superconductivity: Incorporating Novel Magnetism. 11:103-106
We have investigated the possibility of improving the weak link properties of Tl-1223 tape by melt processing, and also studied the technical limitations of coil fabrication using multimeter lengths of PIT tape. We conclude that melt processing does
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b535c4605ee6dcb2f12596437faa4d0b
https://doi.org/10.1023/a:1022610719124
https://doi.org/10.1023/a:1022610719124
Autor:
C.G. Morgan, M.J. Goringe, H. Jones, J.W. Burgoyne, B.M. Henry, R. Storey, M. Priestnall, David Dew-Hughes, Crm Grovenor, C.J. Eastell
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 7:1711-1714
Bi-2212/Ag tapes have been produced using a continuous dip coating and partial melt processing technique. The role of the annealing and melt processing temperatures on the microstructure and current-carrying properties of the tapes are reported. In p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7794604a5e5d6502ed803006904fbeb
https://doi.org/10.1109/77.620909
https://doi.org/10.1109/77.620909
Autor:
J. C. Moore, C.J. Eastell, Chris R. M. Grovenor, A.D. Caplin, M.J. Goringe, J. Everett, S. Fox
Publikováno v:
PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES. 78(1)
We have made a detailed study of the microstructure of (Tl0.78Bi0.22) (Sr1.6Ba0.4)Ca2Cu3Ox/Ag (Tl(Bi)-1223/Ag) powder-in-tube superconducting tapes using transmission electron microscopy. Melt processing led to a markedly different microstructure com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9ec51b3cde056f8e83b8e6ab3037ea7
http://ora.ox.ac.uk/objects/uuid:fc004f75-d085-40e6-b714-e40ff8be6d36
http://ora.ox.ac.uk/objects/uuid:fc004f75-d085-40e6-b714-e40ff8be6d36
Publikováno v:
Journal of Superconductivity: Incorporating Novel Magnetism. 11:11-12
We have compared the microstructure of sintered, in-situ and melt processed Tl(Bi)-1223/Ag tapes using TEM. Melt processing of the tapes increases grain connectivity and removes amorphous phases leading to an improvement in the IC/B characteristics o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c367be55aa7cf1eaf9ee8ac84693f16
https://doi.org/10.1023/a:1022648905495
https://doi.org/10.1023/a:1022648905495
Publikováno v:
Scopus-Elsevier
The critical current density J c has been measured in a series of Chevrel phase Pb 1− x Gd x Mo 6 S 8 ( x = 0, 0.1, 0.2 and 0.3) bulk samples made using a hot isostatic pressing process. Adding Gd markedly increases the critical temperature, and th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ce229a1fbbe1c13a6e2ac6a1ad91f4b
http://www.scopus.com/inward/record.url?eid=2-s2.0-0031269446&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-0031269446&partnerID=MN8TOARS
Publikováno v:
Scopus-Elsevier
The effects of 2223 phase content, grains morphology, texture and core density in Ag sheathed tapes were studied and related to the transport currents. Four Bi(2223)/Ag tapes differing in thermomechanical treatment have been analyzed structurally (XR
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1849e548731b913bd45059857645006
http://www.scopus.com/inward/record.url?eid=2-s2.0-0031361840&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-0031361840&partnerID=MN8TOARS
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