Synthesis of superconducting Mg/MgB2 composites

David C. Dunand

doi:10.1063/1.1427439

Synthesis of superconducting Mg/MgB₂ composites

David C. Dunand^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

Composites consisting of Mg and MgB₂ phases were fabricated by liquid-metal infiltration following two routes. First, a preform of MgB₂ powders was pressure infiltrated at 800 °C with liquid Mg, which was subsequently solidified. Second, a preform of B powders was pressure infiltrated with liquid Mg at 700 °C, resulting in partial, in situ formation of the MgB₂ phase. Subsequent annealing at 950 °C increased the content of MgB₂ through reaction between B and Mg. All composites exhibited a pore-free structure with no significant additional phases and were superconducting near 39 K.

Original language	English (US)
Pages (from-to)	4186-4188
Number of pages	3
Journal	Applied Physics Letters
Volume	79
Issue number	25
DOIs	https://doi.org/10.1063/1.1427439
State	Published - Dec 17 2001

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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AB - Composites consisting of Mg and MgB2 phases were fabricated by liquid-metal infiltration following two routes. First, a preform of MgB2 powders was pressure infiltrated at 800 °C with liquid Mg, which was subsequently solidified. Second, a preform of B powders was pressure infiltrated with liquid Mg at 700 °C, resulting in partial, in situ formation of the MgB2 phase. Subsequent annealing at 950 °C increased the content of MgB2 through reaction between B and Mg. All composites exhibited a pore-free structure with no significant additional phases and were superconducting near 39 K.

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Synthesis of superconducting Mg/MgB₂ composites

Abstract

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