Stress/Strain Induced Flux Pinning in Highly Dense Bulks
We have systematically studied the flux pinning behavior of MgB 2 bulks synthesized by direct diffusion of Mg into pressed pellets of high purity crystalline B powder, with and without mixing with C and SiC nanoparticles, at a reaction temperature of 850 deg C for 10 hrs. All of the samples showed v...
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| Veröffentlicht in: | IEEE transactions on applied superconductivity 2009-06, Vol.19 (3), p.2722-2725 |
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| creator | Zeng, R. Shi Xue Dou Lu, L. Li, W.X. Poh, C.K. Kim, J.H. Horvat, J. Shi, D.Q. Wang, J.L. Munroe, P. Wang, X.F. Zheng, R.K. Ringer, S.P. Rindfleisch, M. Tomsic, M. |
| description | We have systematically studied the flux pinning behavior of MgB 2 bulks synthesized by direct diffusion of Mg into pressed pellets of high purity crystalline B powder, with and without mixing with C and SiC nanoparticles, at a reaction temperature of 850 deg C for 10 hrs. All of the samples showed very high purity and high density, but their microstructure and flux pinning behavior showed significant differences. It was found that the pure MgB 2 agrees with the deltaT c pinning model, nano-C doped MgB 2 agrees with the delta l pinning model, while the SiC+MgB 2 composite agrees with the deltaepsiv pinning model (stress/strain field pinning), since the dominant micro-defects that influence the flux pinning in these three samples are different. |
| doi_str_mv | 10.1109/TASC.2009.2019577 |
| format | Article |
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All of the samples showed very high purity and high density, but their microstructure and flux pinning behavior showed significant differences. It was found that the pure MgB 2 agrees with the deltaT c pinning model, nano-C doped MgB 2 agrees with the delta l pinning model, while the SiC+MgB 2 composite agrees with the deltaepsiv pinning model (stress/strain field pinning), since the dominant micro-defects that influence the flux pinning in these three samples are different.</description><identifier>ISSN: 1051-8223</identifier><identifier>EISSN: 1558-2515</identifier><identifier>DOI: 10.1109/TASC.2009.2019577</identifier><identifier>CODEN: ITASE9</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Australia ; Capacitive sensors ; Critical current density ; Crystallization ; Flux pinning ; Grain boundaries ; Nanoparticles ; Powders ; Silicon carbide ; strain field ; Stress ; Temperature ; {\rm MgB}_{2}</subject><ispartof>IEEE transactions on applied superconductivity, 2009-06, Vol.19 (3), p.2722-2725</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2009</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c1373-4bd78a7da6a951a171ae3e81a1688673ee3b35642078dad689dda942e3d351333</citedby><cites>FETCH-LOGICAL-c1373-4bd78a7da6a951a171ae3e81a1688673ee3b35642078dad689dda942e3d351333</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/5152926$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27903,27904,54736</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/5152926$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Zeng, R.</creatorcontrib><creatorcontrib>Shi Xue Dou</creatorcontrib><creatorcontrib>Lu, L.</creatorcontrib><creatorcontrib>Li, W.X.</creatorcontrib><creatorcontrib>Poh, C.K.</creatorcontrib><creatorcontrib>Kim, J.H.</creatorcontrib><creatorcontrib>Horvat, J.</creatorcontrib><creatorcontrib>Shi, D.Q.</creatorcontrib><creatorcontrib>Wang, J.L.</creatorcontrib><creatorcontrib>Munroe, P.</creatorcontrib><creatorcontrib>Wang, X.F.</creatorcontrib><creatorcontrib>Zheng, R.K.</creatorcontrib><creatorcontrib>Ringer, S.P.</creatorcontrib><creatorcontrib>Rindfleisch, M.</creatorcontrib><creatorcontrib>Tomsic, M.</creatorcontrib><title>Stress/Strain Induced Flux Pinning in Highly Dense Bulks</title><title>IEEE transactions on applied superconductivity</title><addtitle>TASC</addtitle><description>We have systematically studied the flux pinning behavior of MgB 2 bulks synthesized by direct diffusion of Mg into pressed pellets of high purity crystalline B powder, with and without mixing with C and SiC nanoparticles, at a reaction temperature of 850 deg C for 10 hrs. All of the samples showed very high purity and high density, but their microstructure and flux pinning behavior showed significant differences. It was found that the pure MgB 2 agrees with the deltaT c pinning model, nano-C doped MgB 2 agrees with the delta l pinning model, while the SiC+MgB 2 composite agrees with the deltaepsiv pinning model (stress/strain field pinning), since the dominant micro-defects that influence the flux pinning in these three samples are different.</description><subject>Australia</subject><subject>Capacitive sensors</subject><subject>Critical current density</subject><subject>Crystallization</subject><subject>Flux pinning</subject><subject>Grain boundaries</subject><subject>Nanoparticles</subject><subject>Powders</subject><subject>Silicon carbide</subject><subject>strain field</subject><subject>Stress</subject><subject>Temperature</subject><subject>{\rm MgB}_{2}</subject><issn>1051-8223</issn><issn>1558-2515</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kEFPAjEQhRujiYj-AONl432h02637RFRhIREE_DclO2Ai2vBlk3k39sNxMu8l8l7M8lHyD3QAQDVw-VoMR4wSnUaoIWUF6QHQqicCRCXyVMBuWKMX5ObGLeUQqEK0SNqcQgY4zCJrX02866t0GWTpv3N3mvva7_J0n5abz6bY_aMPmL21DZf8ZZcrW0T8e6sffIxeVmOp_n87XU2Hs3zCrjkebFyUlnpbGm1AAsSLHJUyZVKlZIj8hUXZcGoVM66UmnnrC4YcscFcM775PF0dx92Py3Gg9nu2uDTS6OBUaE17UJwClVhF2PAtdmH-tuGowFqOj6m42M6PubMJ3UeTp0aEf_ziRbTrOR_ZtBe9g</recordid><startdate>200906</startdate><enddate>200906</enddate><creator>Zeng, R.</creator><creator>Shi Xue Dou</creator><creator>Lu, L.</creator><creator>Li, W.X.</creator><creator>Poh, C.K.</creator><creator>Kim, J.H.</creator><creator>Horvat, J.</creator><creator>Shi, D.Q.</creator><creator>Wang, J.L.</creator><creator>Munroe, P.</creator><creator>Wang, X.F.</creator><creator>Zheng, R.K.</creator><creator>Ringer, S.P.</creator><creator>Rindfleisch, M.</creator><creator>Tomsic, M.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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All of the samples showed very high purity and high density, but their microstructure and flux pinning behavior showed significant differences. It was found that the pure MgB 2 agrees with the deltaT c pinning model, nano-C doped MgB 2 agrees with the delta l pinning model, while the SiC+MgB 2 composite agrees with the deltaepsiv pinning model (stress/strain field pinning), since the dominant micro-defects that influence the flux pinning in these three samples are different.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TASC.2009.2019577</doi><tpages>4</tpages></addata></record> |
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| subjects | Australia Capacitive sensors Critical current density Crystallization Flux pinning Grain boundaries Nanoparticles Powders Silicon carbide strain field Stress Temperature {\rm MgB}_{2} |
| title | Stress/Strain Induced Flux Pinning in Highly Dense Bulks |
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