The superconducting properties of MgB2 synthesized by reaction of Mg and higher boride phase
In this work, the synthesis of MgB2 by reaction between MgB4 and Mg has been investigated. The MgB4 powders were initially acid-washed in order to eliminate mainly as well as other impurities. Later, an appropriate amount of Mg was added for reaction at temperature range from 650°C to 950°C for 4 ho...
| Main Authors: | , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
Ibnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia
2010
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| Online Access: | http://psasir.upm.edu.my/id/eprint/64970/ http://psasir.upm.edu.my/id/eprint/64970/1/2010-4.pdf |
| _version_ | 1848855153601413120 |
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| author | Tan, Kim Lee Tan, Kwee Yong Chen, Soo Kien Shaari, Abdul Halim Lim, Kean Pah |
| author_facet | Tan, Kim Lee Tan, Kwee Yong Chen, Soo Kien Shaari, Abdul Halim Lim, Kean Pah |
| author_sort | Tan, Kim Lee |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | In this work, the synthesis of MgB2 by reaction between MgB4 and Mg has been investigated. The MgB4 powders were initially acid-washed in order to eliminate mainly as well as other impurities. Later, an appropriate amount of Mg was added for reaction at temperature range from 650°C to 950°C for 4 hours. The samples were characterized by x-ray diffraction (XRD), scanning electron microscope (SEM) and SQUID magnetometer (MPMS). Results from XRD showed the dominant phase of MgB2 with some impurities of MgB4 and MgO in all samples. The scanning electron micrographs showed denser microstructures compared to samples obtained by direct in-situ reaction of Mg and B. However, the measured physical density was decreased upon increasing the sintering temperature attributed to the loss of Mg. The superconducting transition temperature, Tc at 37.2K was found to improve at lower sintering temperature. |
| first_indexed | 2025-11-15T11:21:14Z |
| format | Conference or Workshop Item |
| id | upm-64970 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T11:21:14Z |
| publishDate | 2010 |
| publisher | Ibnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-649702018-09-03T04:16:14Z http://psasir.upm.edu.my/id/eprint/64970/ The superconducting properties of MgB2 synthesized by reaction of Mg and higher boride phase Tan, Kim Lee Tan, Kwee Yong Chen, Soo Kien Shaari, Abdul Halim Lim, Kean Pah In this work, the synthesis of MgB2 by reaction between MgB4 and Mg has been investigated. The MgB4 powders were initially acid-washed in order to eliminate mainly as well as other impurities. Later, an appropriate amount of Mg was added for reaction at temperature range from 650°C to 950°C for 4 hours. The samples were characterized by x-ray diffraction (XRD), scanning electron microscope (SEM) and SQUID magnetometer (MPMS). Results from XRD showed the dominant phase of MgB2 with some impurities of MgB4 and MgO in all samples. The scanning electron micrographs showed denser microstructures compared to samples obtained by direct in-situ reaction of Mg and B. However, the measured physical density was decreased upon increasing the sintering temperature attributed to the loss of Mg. The superconducting transition temperature, Tc at 37.2K was found to improve at lower sintering temperature. Ibnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia 2010 Conference or Workshop Item PeerReviewed text en http://psasir.upm.edu.my/id/eprint/64970/1/2010-4.pdf Tan, Kim Lee and Tan, Kwee Yong and Chen, Soo Kien and Shaari, Abdul Halim and Lim, Kean Pah (2010) The superconducting properties of MgB2 synthesized by reaction of Mg and higher boride phase. In: Regional Annual Fundamental Science Symposium 2010 (RAFSS 2010), 8-9 June 2010, Grand Season Hotel, Kuala Lumpur. (pp. 161-167). |
| spellingShingle | Tan, Kim Lee Tan, Kwee Yong Chen, Soo Kien Shaari, Abdul Halim Lim, Kean Pah The superconducting properties of MgB2 synthesized by reaction of Mg and higher boride phase |
| title | The superconducting properties of MgB2 synthesized by reaction of Mg and higher boride phase |
| title_full | The superconducting properties of MgB2 synthesized by reaction of Mg and higher boride phase |
| title_fullStr | The superconducting properties of MgB2 synthesized by reaction of Mg and higher boride phase |
| title_full_unstemmed | The superconducting properties of MgB2 synthesized by reaction of Mg and higher boride phase |
| title_short | The superconducting properties of MgB2 synthesized by reaction of Mg and higher boride phase |
| title_sort | superconducting properties of mgb2 synthesized by reaction of mg and higher boride phase |
| url | http://psasir.upm.edu.my/id/eprint/64970/ http://psasir.upm.edu.my/id/eprint/64970/1/2010-4.pdf |