Comparison between nano-diamond and carbon nanotube doping effects on critical current density and flux pinning in MgB2

Access & Terms of Use
metadata only access
Altmetric
Abstract
Doping effects of nano-diamond and carbon nanotubes (CNTs) on critical current density of bulk MgB2 have been studied. CNTs are found prone to be doped into the MgB2 lattice whereas nano-diamond tends to form second- phase inclusions in the MgB2 matrix, leading to a more significant improvement of J(c)( H) by doping by nano-diamond than by CNTs in MgB2. TEM reveals tightly packed MgB2 nanograins (50 - 100 nm) with a dense distribution of diamond nanoparticles (10 - 20 nm) inside MgB2 grains in nano-diamond-doped samples. Such a unique microstructure leads to a flux pinning behaviour different from that in CNTs-doped MgB2.
Persistent link to this record
DOI
Link to Open Access Version
Additional Link
Author(s)
Cheng, Cui
Yang, Yu-Hui
Munroe, Paul
Zhao, Yong
Supervisor(s)
Creator(s)
Editor(s)
Translator(s)
Curator(s)
Designer(s)
Arranger(s)
Composer(s)
Recordist(s)
Conference Proceedings Editor(s)
Other Contributor(s)
Corporate/Industry Contributor(s)
Publication Year
2007
Resource Type
Journal Article
Degree Type
UNSW Faculty