Enhanced critical current densities in MgB2 by mixing relatively impure boron powders.
Polycrystalline MgB2 samples were prepared from 99.98% purity Mg powder and different mixtures of relatively impure boron (99% pure crystalline boron and 95–97% amorphous boron) precursor powders. At both 6 and 20 K, for the mixed boron samples a doubling in Jc was observed over the highest values f...
| Main Authors: | , |
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| Format: | Article |
| Language: | English English |
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IOP Publishing Ltd
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/14507/ http://psasir.upm.edu.my/id/eprint/14507/1/Enhanced%20critical%20current%20densities%20in%20MgB2%20by%20mixing%20relatively%20impure%20boron%20powders.pdf |
| _version_ | 1848842413096828928 |
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| author | Chen, Soo Kien MacManus-Driscoll, Judith L. |
| author_facet | Chen, Soo Kien MacManus-Driscoll, Judith L. |
| author_sort | Chen, Soo Kien |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Polycrystalline MgB2 samples were prepared from 99.98% purity Mg powder and different mixtures of relatively impure boron (99% pure crystalline boron and 95–97% amorphous boron) precursor powders. At both 6 and 20 K, for the mixed boron samples a doubling in Jc was observed over the highest values for single precursor samples. It is shown that the enhanced Jc results from the mixing effect of using different reaction rates of the different boron precursor powders. The work represents a cost-effective means of significantly improving current carrying Performance in MgB2 conductors. |
| first_indexed | 2025-11-15T07:58:44Z |
| format | Article |
| id | upm-14507 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T07:58:44Z |
| publishDate | 2009 |
| publisher | IOP Publishing Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-145072015-11-04T01:17:53Z http://psasir.upm.edu.my/id/eprint/14507/ Enhanced critical current densities in MgB2 by mixing relatively impure boron powders. Chen, Soo Kien MacManus-Driscoll, Judith L. Polycrystalline MgB2 samples were prepared from 99.98% purity Mg powder and different mixtures of relatively impure boron (99% pure crystalline boron and 95–97% amorphous boron) precursor powders. At both 6 and 20 K, for the mixed boron samples a doubling in Jc was observed over the highest values for single precursor samples. It is shown that the enhanced Jc results from the mixing effect of using different reaction rates of the different boron precursor powders. The work represents a cost-effective means of significantly improving current carrying Performance in MgB2 conductors. IOP Publishing Ltd 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/14507/1/Enhanced%20critical%20current%20densities%20in%20MgB2%20by%20mixing%20relatively%20impure%20boron%20powders.pdf Chen, Soo Kien and MacManus-Driscoll, Judith L. (2009) Enhanced critical current densities in MgB2 by mixing relatively impure boron powders. Superconductor Science and Technology, 22 (6). pp. 1-5. ISSN 0953-2048 10.1088/0953-2048/22/6/065009 English |
| spellingShingle | Chen, Soo Kien MacManus-Driscoll, Judith L. Enhanced critical current densities in MgB2 by mixing relatively impure boron powders. |
| title | Enhanced critical current densities in MgB2 by mixing relatively impure boron powders. |
| title_full | Enhanced critical current densities in MgB2 by mixing relatively impure boron powders. |
| title_fullStr | Enhanced critical current densities in MgB2 by mixing relatively impure boron powders. |
| title_full_unstemmed | Enhanced critical current densities in MgB2 by mixing relatively impure boron powders. |
| title_short | Enhanced critical current densities in MgB2 by mixing relatively impure boron powders. |
| title_sort | enhanced critical current densities in mgb2 by mixing relatively impure boron powders. |
| url | http://psasir.upm.edu.my/id/eprint/14507/ http://psasir.upm.edu.my/id/eprint/14507/ http://psasir.upm.edu.my/id/eprint/14507/1/Enhanced%20critical%20current%20densities%20in%20MgB2%20by%20mixing%20relatively%20impure%20boron%20powders.pdf |