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Formation of MgB2 at low temperatures by reaction of Mg with B6Si

L. D. Cooley·Kyongha Kang·R. Klie·Q. Li·A. Moodenbaugh·R. Sabatini
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Abstract

Formation of MgB2 by reactions of Mg with B6Si and Mg with B were compared, the former also producing Mg2Si as a major product. Compared to the binary system, the ternary reactions for identical time and temperature were more complete at 750 C and below, as indicated by higher diamagnetic shielding and larger x-ray diffraction peak intensities relative to those of Mg. MgB2 could be produced at temperatures as low as 450 C by the ternary reaction. Analyses by electron microscopy, x-ray diffraction, and of the upper critical field show that Si does not enter the MgB2 phase.

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L. D. Cooley, Kyongha Kang, R. Klie, Q. Li, A. Moodenbaugh, R. Sabatini. 2004-03-03. Formation of MgB2 at low temperatures by reaction of Mg with B6Si. https://doi.org/10.1088/0953-2048%2F17%2F7%2F020

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