Preparation and characterization of Ag-added Bi1.84Pb0.4Sr2Ca2.2Cu3O10+x bulk tube conductors for cryogen free superconducting magnet
Bulk tube conductors of Bi1.84Pb0.4Sr2Ca2.2Cu3O10+xwith addition of silver varying from 0 to 25 wt% (not reported earlier) were systematically studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), electrical transport and a.c. susceptibility techniques. The tube conductors forme...
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| Veröffentlicht in: | Bulletin of materials science 2001-01, Vol.24 (6), p.603-609 |
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| creator | Ekbote, S. N. Padam, G. K. Sharma, M. Arora, N. K. Khurana, B. S. Goel, R. C. Suri, D. K. Mehra, N. Das, B. K. |
| description | Bulk tube conductors of Bi1.84Pb0.4Sr2Ca2.2Cu3O10+xwith addition of silver varying from 0 to 25 wt% (not reported earlier) were systematically studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), electrical transport and a.c. susceptibility techniques. The tube conductors formed by cold isostatic pressing (CIP) of the powders obtained from spray drying method have been made successfully. It was found that Ag addition has not only affected the formation of the desired Bi-2223 phase and the microstructure of these large bulk tube samples thereby influencing on the critical current (Ic),it also reduces the contact resistance to minimize the cryogen losses. These variations have been found to be Ag content dependent. An optimized value of 10 wt% Ag has been found to produce the best quality tubes showing reproducibleIcvalue > 120 Amp at 77 K which is in general a requirement to energies of the cryogen free conventional/HTSC superconducting magnets below 20 K. |
| doi_str_mv | 10.1007/BF02704008 |
| format | Article |
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N. ; Padam, G. K. ; Sharma, M. ; Arora, N. K. ; Khurana, B. S. ; Goel, R. C. ; Suri, D. K. ; Mehra, N. ; Das, B. K.</creator><creatorcontrib>Ekbote, S. N. ; Padam, G. K. ; Sharma, M. ; Arora, N. K. ; Khurana, B. S. ; Goel, R. C. ; Suri, D. K. ; Mehra, N. ; Das, B. K.</creatorcontrib><description>Bulk tube conductors of Bi1.84Pb0.4Sr2Ca2.2Cu3O10+xwith addition of silver varying from 0 to 25 wt% (not reported earlier) were systematically studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), electrical transport and a.c. susceptibility techniques. The tube conductors formed by cold isostatic pressing (CIP) of the powders obtained from spray drying method have been made successfully. It was found that Ag addition has not only affected the formation of the desired Bi-2223 phase and the microstructure of these large bulk tube samples thereby influencing on the critical current (Ic),it also reduces the contact resistance to minimize the cryogen losses. These variations have been found to be Ag content dependent. An optimized value of 10 wt% Ag has been found to produce the best quality tubes showing reproducibleIcvalue > 120 Amp at 77 K which is in general a requirement to energies of the cryogen free conventional/HTSC superconducting magnets below 20 K.</description><identifier>ISSN: 0250-4707</identifier><identifier>EISSN: 0973-7669</identifier><identifier>DOI: 10.1007/BF02704008</identifier><language>eng</language><publisher>Bangalore: Springer Nature B.V</publisher><subject>Bismuth strontium calcium copper oxide ; Cold isostatic pressing ; Cold pressing ; Conductors ; Contact resistance ; Critical current (superconductivity) ; Electric contacts ; Scanning electron microscopy ; Silver ; Spray drying ; Superconducting magnets ; Superconductivity ; Tubes</subject><ispartof>Bulletin of materials science, 2001-01, Vol.24 (6), p.603-609</ispartof><rights>Indian Academy of Sciences 2001.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c290t-7d16717db7079f4111bd40924ba0c392758a4cfe54fd4bd59ced0be500f351b53</citedby><cites>FETCH-LOGICAL-c290t-7d16717db7079f4111bd40924ba0c392758a4cfe54fd4bd59ced0be500f351b53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/884893641/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$H</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/884893641?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>314,780,784,21388,27924,27925,33744,43805,64385,64389,72469,74302</link.rule.ids></links><search><creatorcontrib>Ekbote, S. 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It was found that Ag addition has not only affected the formation of the desired Bi-2223 phase and the microstructure of these large bulk tube samples thereby influencing on the critical current (Ic),it also reduces the contact resistance to minimize the cryogen losses. These variations have been found to be Ag content dependent. An optimized value of 10 wt% Ag has been found to produce the best quality tubes showing reproducibleIcvalue > 120 Amp at 77 K which is in general a requirement to energies of the cryogen free conventional/HTSC superconducting magnets below 20 K.</description><subject>Bismuth strontium calcium copper oxide</subject><subject>Cold isostatic pressing</subject><subject>Cold pressing</subject><subject>Conductors</subject><subject>Contact resistance</subject><subject>Critical current (superconductivity)</subject><subject>Electric contacts</subject><subject>Scanning electron microscopy</subject><subject>Silver</subject><subject>Spray drying</subject><subject>Superconducting magnets</subject><subject>Superconductivity</subject><subject>Tubes</subject><issn>0250-4707</issn><issn>0973-7669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpFkE9Lw0AQxYMoWKsXP8HiUUmc3Wyy2WMbrAqFFtRz2L8xtc3G3QSsd7-3kRY8zczjxzzei6JrDAkGYPfzBRAGFKA4iSbAWRqzPOen404yiCkDdh5dhLABwJxSPIl-1t50wou-cS0SrUbqfbxUb3zzfRCdRbM6FlobjeYNTgq6lpDQF09KQRJSDukKw90XksP2A_WDNEi5Vg-qdz4g6zxSfu9q0yLrjUFh6Iw_Ak1bo52oW9NfRmdWbIO5Os5p9LZ4eC2f4uXq8bmcLWNFOPQx0zhnmGk55uCWYoylpsAJlQJUygnLCkGVNRm1mkqdcWU0SJMB2DTDMkun0c3hb-fd52BCX23c4NvRsioKWvA0p3iEbg-Q8i4Eb2zV-WYn_L7CUP21XP23nP4Ce3NuOQ</recordid><startdate>20010101</startdate><enddate>20010101</enddate><creator>Ekbote, S. 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N.</au><au>Padam, G. K.</au><au>Sharma, M.</au><au>Arora, N. K.</au><au>Khurana, B. S.</au><au>Goel, R. C.</au><au>Suri, D. K.</au><au>Mehra, N.</au><au>Das, B. K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation and characterization of Ag-added Bi1.84Pb0.4Sr2Ca2.2Cu3O10+x bulk tube conductors for cryogen free superconducting magnet</atitle><jtitle>Bulletin of materials science</jtitle><date>2001-01-01</date><risdate>2001</risdate><volume>24</volume><issue>6</issue><spage>603</spage><epage>609</epage><pages>603-609</pages><issn>0250-4707</issn><eissn>0973-7669</eissn><abstract>Bulk tube conductors of Bi1.84Pb0.4Sr2Ca2.2Cu3O10+xwith addition of silver varying from 0 to 25 wt% (not reported earlier) were systematically studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), electrical transport and a.c. susceptibility techniques. 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| subjects | Bismuth strontium calcium copper oxide Cold isostatic pressing Cold pressing Conductors Contact resistance Critical current (superconductivity) Electric contacts Scanning electron microscopy Silver Spray drying Superconducting magnets Superconductivity Tubes |
| title | Preparation and characterization of Ag-added Bi1.84Pb0.4Sr2Ca2.2Cu3O10+x bulk tube conductors for cryogen free superconducting magnet |
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