| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1819924 | Physica C: Superconductivity and its Applications | 2007 | 5 Pages |
Abstract
Doping effects of two types of nano-carbons: nano-diamond and carbon-nanotubes (CNTs), on the flux pinning properties of MgB2 bulk materials have been studied. Compared with nano-diamond, CNTs is prone to be doped into MgB2 lattice. Nano-diamond doping improves Jc(H) characteristics more significantly than CNTs doping in MgB2. TEM analysis reveals a unique microstructure in diamond-doped MgB2, which consists of tightly packed MgB2 nanograins (50-100Â nm) with dense distribution of diamond nanoparticles (10-20Â nm) inside the grains. Relatively, such a unique microstructure is not easy to form in CNTs-doped MgB2 due to an active reaction between CNTs and MgB2.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Y. Zhao, Y. Yang, C.H. Cheng, Y. Zhang,