Abdul Rahman, Nur Zahidah (2022) Phase formation, crystal structure and microstructure of mgb2 with addition of Se. [Project Paper] (Submitted)
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Abstract
The phase formation, crystal structure and microstructure of MgB2 with the addition of Se was studied in this project. The samples were sintered at 800˚C. X-ray diffraction (XRD) data indicated that MgO was the main phase with a minor amount of MgB2, MgSe and Se due to the oxidation between Mg and oxygen. The intensity fraction of MgB2 was found to decrease with the increasing Se addition. The lattice strain of the MgB2 without addition is higher than the MgB2 with the addition of Se which is 0.582%. The grain size of sintered MgB2 with the addition of Se is higher than that of pure MgB2 indicating higher grain growth of the former. The grain size is 0.4μm and 0.8μm for the MgB2 without and with addition, respectively. The density of the pure MgB2 ranged from 1.86g/cm3 to 1.41g/cm3 with increasing Se addition.
| Item Type: | Project Paper |
|---|---|
| Faculty: | Fakulti Sains |
| Depositing User: | Ms Emelda Mohd Hamid |
| Date Deposited: | 20 May 2024 03:27 |
| Last Modified: | 25 Jun 2024 10:17 |
| URI: | http://psaspb.upm.edu.my/id/eprint/1762 |
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