| Literature DB >> 17359189 |
S X Dou1, O Shcherbakova, W K Yeoh, W K Yoeh, J H Kim, S Soltanian, X L Wang, C Senatore, R Flukiger, M Dhalle, O Husnjak, E Babic.
Abstract
A comparative study of pure, SiC, and C doped MgB2 wires has revealed that the SiC doping allowed C substitution and MgB2 formation to take place simultaneously at low temperatures. C substitution enhances H_{c2}, while the defects, small grain size, and nanoinclusions induced by C incorporation and low-temperature processing are responsible for the improvement in J_{c}. The irreversibility field (H_{irr}) for the SiC doped sample reached the benchmarking value of 10 T at 20 K, exceeding that of NbTi at 4.2 K. This dual reaction model also enables us to predict desirable dopants for enhancing the performance properties of MgB2.Entities:
Year: 2007 PMID： 17359189 DOI： 10.1103/PhysRevLett.98.097002
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161