Effect of fine boron powders prepared with a self-propagating high temperature synthesis on flux pinning properties of the MgB2/Fe composite wires

Authors

YoungKuk Kim, Korea Institute of Materials Science
Kookchae Chung, Korea Institute of Materials Science
Jaimoo Yoo, University of WollongongFollow
InHyuk Song, Korea Institute of Materials Science
Jaewoong Ko, Korea Institute of Materials Science
WooHyun Chung, Sungjudong, South Korea
DongHo Kim, Yeungnam University, South Korea
Xiaolin Wang, University of WollongongFollow
S X. Dou, University of WollongongFollow
PyungWoo Shin, Changwon National University, South Korea

RIS ID

31548

Publication Details

Kim, Y, Chung, K, Yoo, J, Song, I, Ko, J, Chung, W, Kim, D, Wang, X, Dou, SX & Shin, P (2009), Effect of fine boron powders prepared with a self-propagating high temperature synthesis on flux pinning properties of the MgB2/Fe composite wires, Journal of Alloys and Compounds, 485(1-2), pp. L44-L46.

Abstract

Fine boron powders were prepared by a self-propagating high temperature synthesis (SHS) based on the reduction of boron oxide by magnesium (3Mg + B₂O₃ → 3MgO + 2B). The synthesized boron powders with SHS process showed small particle size (∼350 nm) with highly enlarged surface area. The MgB₂/Fe composite wire prepared with SHS-processed boron powders showed enhanced J_c properties under magnetic field. The major mechanism under this improvement was analyzed to be surface pinning by large number of grain boundaries owing to the small grain size of MgB₂.

Grant Number

ARC/DP0770205

Additional Grant Number

http://purl.org/au-research/grants/ARC/DP0770205