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Title: Electrical and microstructural properties of superconducting MgB 2/Mg composites
Authors: Eğilmez, Mehmet
Günel, Aylin
Okur, Salih
Tanoğlu, Metin
Özyüzer, Lütfi
Keywords: Composites
Superconducting wire
Critical temperature
Issue Date: 2004
Publisher: Trans Tech Publications
Source: Eğilmez, M., Günel, A., Okur, S., Tanoğlu, M., and Özyüzer, L. (2004). Electrical and microstructural properties of superconducting MgB 2/Mg composites. Key Engineering Materials, 264-268(II), 1197-1200. doi:10.4028/
Abstract: MgB2/Mg composites were prepared to improve mechanical properties of brittle superconducting MgB2. MgB2 and Mg powders were mixed at different weight ratios and uniaxially pressed in a cylindrical dye at 0.5 GPa and at various temperatures for two hours to prepare MgB2/Mg composites. X-ray diffraction, SEM and EDX were used for phase identification and microstructural characterization. In addition to the main MgB2 and Mg phases, the microstructural studies have indicated the presence of a minor amounts of second phases, namely MgO and B-rich compounds. The surface morphology, grain size and porosity ratio of the samples prepared under various temperatures were also investigated. The resistivity measurements were performed in the range of room temperature to 15 K. The effect of excess Mg and secondary phases on critical temperature of MgB2/Mg composites were studied.
ISSN: 1013-9826
Appears in Collections:Mechanical Engineering / Makina Mühendisliği
Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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