Improved flux pinning behaviour in bulk MgB2 achieved by nano-SiO2 addition
Date:2026-11-07 clicks:
DOI number:10.1088/0953-2048/17/4/022
Affiliation of Author(s):北京科技大学
Journal:Superconductor Science and Technology
Place of Publication:英国
Abstract:Bulk MgB2 with SiO2 nanoparticles added has been synthesized using a simple solid-state reaction route. The lattice constant in the c direction increases with additive content due to a small amount of Si being doped into the lattice of the MgB2; however, T-c is almost fixed at 37.2 K. The addition Of SiO2 nanoparticles also improves the J(c)-H and H-irr-T characteristics of MgB2 when the additive content is lower than 7%. At 20 K and 1 T, J(c) for the sample with 7% additive content reaches 2.5 x 10(5) A cm(-2).
Co-author:Y. Zhao, Y. Y. Xu, L. Zhang, X. F. Sun, Y. Z. Wang, H. Zhang
First Author:X. F. Rui
Indexed by:Journal paper
Correspondence Author:Han Zhang
Discipline:Engineering
Document Type:J
Volume:17
Issue:4
Page Number:689-691
ISSN No.:0953-2048/1361-6668
Translation or Not:no
Date of Publication:2004-04-01
Links to published journals:https://iopscience.iop.org/article/10.1088/0953-2048/17/4/022