Enhanced critical current density in MgB2 superconductor via Si and C coadditions.
In this study, nanosize Silicon and Carbon (Si+C) were reacted with MgB2 in order to enhance the critical current density. The polycrystalline bulks were synthesized by the direct in situ reaction method and their phase formation, crystal structure, and superconducting properties were evaluated. The...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
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Springer Verlag
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/24931/ http://psasir.upm.edu.my/id/eprint/24931/1/Enhanced%20critical%20current%20density%20in%20MgB2%20superconductor%20via%20Si%20and%20C%20coadditions.pdf |
| _version_ | 1848845170694422528 |
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| author | Tan, K.Y. Tan, K.L. Tan, K.B. Lim, Kean Pah Chen, Soo Kien Shaari, Abdul Halim |
| author_facet | Tan, K.Y. Tan, K.L. Tan, K.B. Lim, Kean Pah Chen, Soo Kien Shaari, Abdul Halim |
| author_sort | Tan, K.Y. |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | In this study, nanosize Silicon and Carbon (Si+C) were reacted with MgB2 in order to enhance the critical current density. The polycrystalline bulks were synthesized by the direct in situ reaction method and their phase formation, crystal structure, and superconducting properties were evaluated. The enhanced relative peak intensity of Mg2Si and MgB4 indicates the formation of a large volume fraction of these two phases with increasing (Si+C) additions. The a-axis lattice parameter shrinks significantly while c-axis increases slightly. The estimated C doping level at B site increases, leading to a degradation of the superconducting transition temperature with increasing (Si+C) additions. By a reaction with (Si+C), the field dependence of critical current density is shown to enhance at both 5 K and 20 K. |
| first_indexed | 2025-11-15T08:42:34Z |
| format | Article |
| id | upm-24931 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T08:42:34Z |
| publishDate | 2011 |
| publisher | Springer Verlag |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-249312016-01-12T01:53:30Z http://psasir.upm.edu.my/id/eprint/24931/ Enhanced critical current density in MgB2 superconductor via Si and C coadditions. Tan, K.Y. Tan, K.L. Tan, K.B. Lim, Kean Pah Chen, Soo Kien Shaari, Abdul Halim In this study, nanosize Silicon and Carbon (Si+C) were reacted with MgB2 in order to enhance the critical current density. The polycrystalline bulks were synthesized by the direct in situ reaction method and their phase formation, crystal structure, and superconducting properties were evaluated. The enhanced relative peak intensity of Mg2Si and MgB4 indicates the formation of a large volume fraction of these two phases with increasing (Si+C) additions. The a-axis lattice parameter shrinks significantly while c-axis increases slightly. The estimated C doping level at B site increases, leading to a degradation of the superconducting transition temperature with increasing (Si+C) additions. By a reaction with (Si+C), the field dependence of critical current density is shown to enhance at both 5 K and 20 K. Springer Verlag 2011-08 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/24931/1/Enhanced%20critical%20current%20density%20in%20MgB2%20superconductor%20via%20Si%20and%20C%20coadditions.pdf Tan, K.Y. and Tan, K.L. and Tan, K.B. and Lim, Kean Pah and Chen, Soo Kien and Shaari, Abdul Halim (2011) Enhanced critical current density in MgB2 superconductor via Si and C coadditions. Journal of Superconductivity and Novel Magnetism , 24 (6). pp. 2025-2029. ISSN 1557-1939; ESSN:1557-1947 http://link.springer.com/ 10.1007/s10948-011-1162-0 English |
| spellingShingle | Tan, K.Y. Tan, K.L. Tan, K.B. Lim, Kean Pah Chen, Soo Kien Shaari, Abdul Halim Enhanced critical current density in MgB2 superconductor via Si and C coadditions. |
| title | Enhanced critical current density in MgB2 superconductor via Si and C coadditions. |
| title_full | Enhanced critical current density in MgB2 superconductor via Si and C coadditions. |
| title_fullStr | Enhanced critical current density in MgB2 superconductor via Si and C coadditions. |
| title_full_unstemmed | Enhanced critical current density in MgB2 superconductor via Si and C coadditions. |
| title_short | Enhanced critical current density in MgB2 superconductor via Si and C coadditions. |
| title_sort | enhanced critical current density in mgb2 superconductor via si and c coadditions. |
| url | http://psasir.upm.edu.my/id/eprint/24931/ http://psasir.upm.edu.my/id/eprint/24931/ http://psasir.upm.edu.my/id/eprint/24931/ http://psasir.upm.edu.my/id/eprint/24931/1/Enhanced%20critical%20current%20density%20in%20MgB2%20superconductor%20via%20Si%20and%20C%20coadditions.pdf |