Enhanced critical current density of ex situ MgB2 via control of Mg assisted sintering
In this work, ex situ MgB2 was mixed with 0.5 mol of Mg and sintered. The sintering conditions were varied over a temperature range of 600–1000 °C for 1, 3, and 7 h, respectively. The addition of Mg during the sintering increased the partial pressure of Mg and thus suppressed the decomposition of Mg...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
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Springer
2022
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| Online Access: | http://psasir.upm.edu.my/id/eprint/101260/ |
| _version_ | 1848863524539858944 |
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| author | Mohd Hapipi, Nurhidayah Chen, Soo Kien Shaari, Abdul Halim Awang Kechik, Mohd Mustafa Lim, Kean Pah Tan, Kar Ban Lee, Oon Jew Arvapalli, Sai Srikanth Miryala, Muralidhar |
| author_facet | Mohd Hapipi, Nurhidayah Chen, Soo Kien Shaari, Abdul Halim Awang Kechik, Mohd Mustafa Lim, Kean Pah Tan, Kar Ban Lee, Oon Jew Arvapalli, Sai Srikanth Miryala, Muralidhar |
| author_sort | Mohd Hapipi, Nurhidayah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | In this work, ex situ MgB2 was mixed with 0.5 mol of Mg and sintered. The sintering conditions were varied over a temperature range of 600–1000 °C for 1, 3, and 7 h, respectively. The addition of Mg during the sintering increased the partial pressure of Mg and thus suppressed the decomposition of MgB2. Onset of critical temperature, Tc, was retained at ∼ 38 K even after the addition of Mg. By increasing the sintering temperature, magnetic critical current density, Jc at self-field, and 20 K of the ex situ samples increased consistently. With the addition of Mg for 1 h sintering, self-field Jc (20 K) was enhanced more than 20 times to 104 A cm−2 as the sintering temperature was increased. Such significant enhancement in the Jc is mainly due to the improved grain coupling aided by Mg during the short sintering. |
| first_indexed | 2025-11-15T13:34:17Z |
| format | Article |
| id | upm-101260 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T13:34:17Z |
| publishDate | 2022 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1012602023-10-19T22:33:55Z http://psasir.upm.edu.my/id/eprint/101260/ Enhanced critical current density of ex situ MgB2 via control of Mg assisted sintering Mohd Hapipi, Nurhidayah Chen, Soo Kien Shaari, Abdul Halim Awang Kechik, Mohd Mustafa Lim, Kean Pah Tan, Kar Ban Lee, Oon Jew Arvapalli, Sai Srikanth Miryala, Muralidhar In this work, ex situ MgB2 was mixed with 0.5 mol of Mg and sintered. The sintering conditions were varied over a temperature range of 600–1000 °C for 1, 3, and 7 h, respectively. The addition of Mg during the sintering increased the partial pressure of Mg and thus suppressed the decomposition of MgB2. Onset of critical temperature, Tc, was retained at ∼ 38 K even after the addition of Mg. By increasing the sintering temperature, magnetic critical current density, Jc at self-field, and 20 K of the ex situ samples increased consistently. With the addition of Mg for 1 h sintering, self-field Jc (20 K) was enhanced more than 20 times to 104 A cm−2 as the sintering temperature was increased. Such significant enhancement in the Jc is mainly due to the improved grain coupling aided by Mg during the short sintering. Springer 2022-03-30 Article PeerReviewed Mohd Hapipi, Nurhidayah and Chen, Soo Kien and Shaari, Abdul Halim and Awang Kechik, Mohd Mustafa and Lim, Kean Pah and Tan, Kar Ban and Lee, Oon Jew and Arvapalli, Sai Srikanth and Miryala, Muralidhar (2022) Enhanced critical current density of ex situ MgB2 via control of Mg assisted sintering. Journal of Materials Science: Materials in Electronics, 33. 11257 - 11268. ISSN 0957-4522; ESSN: 1573-482X https://link.springer.com/article/10.1007/s10854-022-08101-3#:~:text=In%20this%20work%2C%20ex%20situ,the%20decomposition%20of%20MgB2. 10.1007/s10854-022-08101-3 |
| spellingShingle | Mohd Hapipi, Nurhidayah Chen, Soo Kien Shaari, Abdul Halim Awang Kechik, Mohd Mustafa Lim, Kean Pah Tan, Kar Ban Lee, Oon Jew Arvapalli, Sai Srikanth Miryala, Muralidhar Enhanced critical current density of ex situ MgB2 via control of Mg assisted sintering |
| title | Enhanced critical current density of ex situ MgB2 via control of Mg assisted sintering |
| title_full | Enhanced critical current density of ex situ MgB2 via control of Mg assisted sintering |
| title_fullStr | Enhanced critical current density of ex situ MgB2 via control of Mg assisted sintering |
| title_full_unstemmed | Enhanced critical current density of ex situ MgB2 via control of Mg assisted sintering |
| title_short | Enhanced critical current density of ex situ MgB2 via control of Mg assisted sintering |
| title_sort | enhanced critical current density of ex situ mgb2 via control of mg assisted sintering |
| url | http://psasir.upm.edu.my/id/eprint/101260/ http://psasir.upm.edu.my/id/eprint/101260/ http://psasir.upm.edu.my/id/eprint/101260/ |