Title

Superior critical current density obtained in MgB2 bulks through low-cost carbon-encapsulated boron powder

RIS ID

100469

Publication Details

Barua, S., Hossain, M. Al., Ma, Z., Patel, D., Mustapic, M., Somer, M., Acar, S., Kokal, I., Morawski, A., Cetner, T., Gajda, D. & Dou, S. Xue. (2015). Superior critical current density obtained in MgB2 bulks through low-cost carbon-encapsulated boron powder. Scripta Materialia, 104 37-40.

Abstract

The unavailability of high quality precursor is encouraging researchers to seek effective ways to fabricate magnesium diboride (MgB2) wire. Herein, cost-effective amorphous boron powder produced through a diborane (B2H6) gas process is investigated for the possibility of further industrial application. A thin carbon layer to encapsulate the boron particles is simultaneously deposited by pyrolysis of hydrocarbon. We found that the carbon-encapsulated amorphous boron has a high upper critical field due to impurity scattering, and thereby, enhanced high-field critical current density.

Grant Number

ARC/DE130101247, ARC/DE140101333

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Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.scriptamat.2015.04.003