Enhancement of critical current density in Mg incorporated ex-situ MgB2 via co-addition of B4C and Dy2O3
By utilising the solid-state sintering route, bulk polycrystalline ex-situ MgB2 added with 0.5 mol Mg + 5.0 wt% B4C + x wt% Dy2O3 (x = 0.0, 0.5, 1.0, 2.0) were fabricated. X-ray Diffraction (XRD) showed the dominance of MgB2 phase across the samples. Simultaneous addition of Mg, B4C and Dy2O3 was fo...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier Ltd
2025
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| Online Access: | http://psasir.upm.edu.my/id/eprint/118541/ http://psasir.upm.edu.my/id/eprint/118541/1/118541.pdf |
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| author | Peh, Hoo Keong Chen, Soo Kien Hapipi, Nurhidayah Mohd Kechik, Mohd Mustafa Awang Lim, Kean Pah Tan, Kar Ban Shaari, Abdul Halim Shabdin, Muhd Kashfi Mohamed, Arebat Ryad Alhadei Lee, Oon Jew Huy, Nguyen Quang Tran, Duc H. Miryala, Muralidhar |
| author_facet | Peh, Hoo Keong Chen, Soo Kien Hapipi, Nurhidayah Mohd Kechik, Mohd Mustafa Awang Lim, Kean Pah Tan, Kar Ban Shaari, Abdul Halim Shabdin, Muhd Kashfi Mohamed, Arebat Ryad Alhadei Lee, Oon Jew Huy, Nguyen Quang Tran, Duc H. Miryala, Muralidhar |
| author_sort | Peh, Hoo Keong |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | By utilising the solid-state sintering route, bulk polycrystalline ex-situ MgB2 added with 0.5 mol Mg + 5.0 wt% B4C + x wt% Dy2O3 (x = 0.0, 0.5, 1.0, 2.0) were fabricated. X-ray Diffraction (XRD) showed the dominance of MgB2 phase across the samples. Simultaneous addition of Mg, B4C and Dy2O3 was found to increase the MgB2 fraction. The onset of critical temperature remained unchanged indicating negligibly small C doping into the MgB2. The critical current density, Jc was measured using a SQUID magnetometer on rectangular bulk samples. As compared with the pure ex-situ MgB2, Jc of the sample for x = 2.0 is around 30 times larger reaching 1.2 × 105 A·cm−2 at 20 K and self-field. As revealed by the transmission electron microscopy images, the presence of DyB4 nanoparticles may serve as effective flux pinning centres leading to the great enhancement of Jc. |
| first_indexed | 2025-11-15T14:38:06Z |
| format | Article |
| id | upm-118541 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:38:06Z |
| publishDate | 2025 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1185412025-07-16T03:15:32Z http://psasir.upm.edu.my/id/eprint/118541/ Enhancement of critical current density in Mg incorporated ex-situ MgB2 via co-addition of B4C and Dy2O3 Peh, Hoo Keong Chen, Soo Kien Hapipi, Nurhidayah Mohd Kechik, Mohd Mustafa Awang Lim, Kean Pah Tan, Kar Ban Shaari, Abdul Halim Shabdin, Muhd Kashfi Mohamed, Arebat Ryad Alhadei Lee, Oon Jew Huy, Nguyen Quang Tran, Duc H. Miryala, Muralidhar By utilising the solid-state sintering route, bulk polycrystalline ex-situ MgB2 added with 0.5 mol Mg + 5.0 wt% B4C + x wt% Dy2O3 (x = 0.0, 0.5, 1.0, 2.0) were fabricated. X-ray Diffraction (XRD) showed the dominance of MgB2 phase across the samples. Simultaneous addition of Mg, B4C and Dy2O3 was found to increase the MgB2 fraction. The onset of critical temperature remained unchanged indicating negligibly small C doping into the MgB2. The critical current density, Jc was measured using a SQUID magnetometer on rectangular bulk samples. As compared with the pure ex-situ MgB2, Jc of the sample for x = 2.0 is around 30 times larger reaching 1.2 × 105 A·cm−2 at 20 K and self-field. As revealed by the transmission electron microscopy images, the presence of DyB4 nanoparticles may serve as effective flux pinning centres leading to the great enhancement of Jc. Elsevier Ltd 2025-01-25 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/118541/1/118541.pdf Peh, Hoo Keong and Chen, Soo Kien and Hapipi, Nurhidayah Mohd and Kechik, Mohd Mustafa Awang and Lim, Kean Pah and Tan, Kar Ban and Shaari, Abdul Halim and Shabdin, Muhd Kashfi and Mohamed, Arebat Ryad Alhadei and Lee, Oon Jew and Huy, Nguyen Quang and Tran, Duc H. and Miryala, Muralidhar (2025) Enhancement of critical current density in Mg incorporated ex-situ MgB2 via co-addition of B4C and Dy2O3. Journal of Alloys and Compounds, 1012. art. no. 178233. pp. 1-7. ISSN 0925-8388; eISSN: 0925-8388 https://linkinghub.elsevier.com/retrieve/pii/S0925838824048217 10.1016/j.jallcom.2024.178233 |
| spellingShingle | Peh, Hoo Keong Chen, Soo Kien Hapipi, Nurhidayah Mohd Kechik, Mohd Mustafa Awang Lim, Kean Pah Tan, Kar Ban Shaari, Abdul Halim Shabdin, Muhd Kashfi Mohamed, Arebat Ryad Alhadei Lee, Oon Jew Huy, Nguyen Quang Tran, Duc H. Miryala, Muralidhar Enhancement of critical current density in Mg incorporated ex-situ MgB2 via co-addition of B4C and Dy2O3 |
| title | Enhancement of critical current density in Mg incorporated ex-situ MgB2 via co-addition of B4C and Dy2O3 |
| title_full | Enhancement of critical current density in Mg incorporated ex-situ MgB2 via co-addition of B4C and Dy2O3 |
| title_fullStr | Enhancement of critical current density in Mg incorporated ex-situ MgB2 via co-addition of B4C and Dy2O3 |
| title_full_unstemmed | Enhancement of critical current density in Mg incorporated ex-situ MgB2 via co-addition of B4C and Dy2O3 |
| title_short | Enhancement of critical current density in Mg incorporated ex-situ MgB2 via co-addition of B4C and Dy2O3 |
| title_sort | enhancement of critical current density in mg incorporated ex-situ mgb2 via co-addition of b4c and dy2o3 |
| url | http://psasir.upm.edu.my/id/eprint/118541/ http://psasir.upm.edu.my/id/eprint/118541/ http://psasir.upm.edu.my/id/eprint/118541/ http://psasir.upm.edu.my/id/eprint/118541/1/118541.pdf |