Effects of nano-SiC addition on the superconducting properties of magnesium diboride
In this study, we report the results on phase formation, microstructures, and superconducting properties of a series of MgB2 samples with different level of SiC additions. The polycrystalline samples were prepared via solid state reaction by mixing magnesium, boron and silicone carbide powders accor...
| Հիմնական հեղինակներ: | , , , , , |
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| Ձևաչափ: | Հոդված |
| Լեզու: | English |
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Malaysian Solid State Science and Technology Society
2012
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| Առցանց հասանելիություն: | http://psasir.upm.edu.my/id/eprint/42227/1/Effects%20of%20nano-SiC%20addition%20on%20the%20superconducting%20properties%20of%20magnesium%20diboride.pdf |
| _version_ | 1825929119866552320 |
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| author | Tan, Kwee Yong Tan, K. L. Tan, Kar Ban Lim, K. P. Shaari, Abdul Halim Chen, Soo Kien |
| author_facet | Tan, Kwee Yong Tan, K. L. Tan, Kar Ban Lim, K. P. Shaari, Abdul Halim Chen, Soo Kien |
| author_sort | Tan, Kwee Yong |
| collection | UPM |
| description | In this study, we report the results on phase formation, microstructures, and superconducting properties of a series of MgB2 samples with different level of SiC additions. The polycrystalline samples were prepared via solid state reaction by mixing magnesium, boron and silicone carbide powders according to the ratio of Mg:B:SiC = 1:2:x. XRD spectra showed that MgB2 is the primary phase while Mg2Si, MgO and MgB4, together with some unreacted SiC are the secondary phases as the addition increases. The presence of Mg2Si became more significant as the addition level increased. SEM images showed smaller grains as the addition level increases indicating more grain boundaries were formed. The Tc was as low as 30.5K for x=15wt%. The field dependence of Jc showed that x=1wt% sample gave the best performance at both 5K and 20K. |
| first_indexed | 2024-03-06T08:52:11Z |
| format | Article |
| id | upm.eprints-42227 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:52:11Z |
| publishDate | 2012 |
| publisher | Malaysian Solid State Science and Technology Society |
| record_format | dspace |
| spelling | upm.eprints-422272016-04-12T05:03:04Z http://psasir.upm.edu.my/id/eprint/42227/ Effects of nano-SiC addition on the superconducting properties of magnesium diboride Tan, Kwee Yong Tan, K. L. Tan, Kar Ban Lim, K. P. Shaari, Abdul Halim Chen, Soo Kien In this study, we report the results on phase formation, microstructures, and superconducting properties of a series of MgB2 samples with different level of SiC additions. The polycrystalline samples were prepared via solid state reaction by mixing magnesium, boron and silicone carbide powders according to the ratio of Mg:B:SiC = 1:2:x. XRD spectra showed that MgB2 is the primary phase while Mg2Si, MgO and MgB4, together with some unreacted SiC are the secondary phases as the addition increases. The presence of Mg2Si became more significant as the addition level increased. SEM images showed smaller grains as the addition level increases indicating more grain boundaries were formed. The Tc was as low as 30.5K for x=15wt%. The field dependence of Jc showed that x=1wt% sample gave the best performance at both 5K and 20K. Malaysian Solid State Science and Technology Society 2012 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/42227/1/Effects%20of%20nano-SiC%20addition%20on%20the%20superconducting%20properties%20of%20magnesium%20diboride.pdf Tan, Kwee Yong and Tan, K. L. and Tan, Kar Ban and Lim, K. P. and Shaari, Abdul Halim and Chen, Soo Kien (2012) Effects of nano-SiC addition on the superconducting properties of magnesium diboride. Solid State Science and Technology, 20 (1 & 2). pp. 128-133. ISSN 0128-7389 http://masshp.net/journal/all%20journal/VOLUME%2020,%20NO.%201%20&%202,%202012/htm/Vol.%2020,%20No%201%20&%202%20%282012%29%20128-133.htm |
| spellingShingle | Tan, Kwee Yong Tan, K. L. Tan, Kar Ban Lim, K. P. Shaari, Abdul Halim Chen, Soo Kien Effects of nano-SiC addition on the superconducting properties of magnesium diboride |
| title | Effects of nano-SiC addition on the superconducting properties of magnesium diboride |
| title_full | Effects of nano-SiC addition on the superconducting properties of magnesium diboride |
| title_fullStr | Effects of nano-SiC addition on the superconducting properties of magnesium diboride |
| title_full_unstemmed | Effects of nano-SiC addition on the superconducting properties of magnesium diboride |
| title_short | Effects of nano-SiC addition on the superconducting properties of magnesium diboride |
| title_sort | effects of nano sic addition on the superconducting properties of magnesium diboride |
| url | http://psasir.upm.edu.my/id/eprint/42227/1/Effects%20of%20nano-SiC%20addition%20on%20the%20superconducting%20properties%20of%20magnesium%20diboride.pdf |
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