Mechanisms of the formation of a bulk superconducting phase MgB2 at high temperatures

The structure of MgB 2 samples synthesized from magnesium flakes and a boron powder at temperatures of 900–1000°C has been investigated. It has been found that the samples have “dendrite-like” and layered structures formed as a result of the dissolution of solid boron in liquid magnesium followed by...

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Veröffentlicht in:	Physics of the solid state 2015-05, Vol.57 (5), p.873-879
Hauptverfasser:	Kuznetsova, E. I., Akshentsev, Yu. N., Esin, V. O., Sudareva, S. V., Blinova, Yu. V., Degtyarev, M. V., Novozhonov, V. I., Romanov, E. P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Physics Physics and Astronomy Solid State Physics Superconductivity
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	The structure of MgB 2 samples synthesized from magnesium flakes and a boron powder at temperatures of 900–1000°C has been investigated. It has been found that the samples have “dendrite-like” and layered structures formed as a result of the dissolution of solid boron in liquid magnesium followed by crystallization. The obtained structures have been analyzed within the theoretical concepts of crystallization from melt.
ISSN:	1063-7834 1090-6460
DOI:	10.1134/S1063783415050182