Silicon oil: a cheap liquid additive for enhancing in-field critical current density in MgB2

Authors

Xiaolin Wang, University of WollongongFollow
Zhenxiang Cheng, University of WollongongFollow
S X. Dou, University of WollongongFollow

RIS ID

20103

Publication Details

Wang, X, Cheng, Z & Dou, SX (2007), Silicon oil: a cheap liquid additive for enhancing in-field critical current density in MgB2, Applied Physics Letters, 90(4), pp. 042501-1-042501-3.

Abstract

In this work, the authors report on significant flux pinning enhancement in MgB₂ that has been easily obtained using a liquid additive, silicon oil. MgB₂ bulk samples with 0 up to 30 wt % silicon oil added were prepared by an in situ reaction. Results showed that the Si and C released from the decomposition of the silicon oil formed Mg₂Si and substituted into B sites, respectively. Increasing the amount of the Si oil up to 15 wt % has resulted in the reduction of the lattice parameters, as well as T_c and R(300 K)/R(T_c) values, accompanied by a significant enhancement of J_c(H), H_irr, and H_c2.

Grant Number

ARC/DP0770205

Additional Grant Number

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