Abstract
Both pure and nano-SiC doped MgB2 bulk samples were prepared by a rapid process. The effects of fast heating-up and doping on the critical current densities were studied. All samples were examined using XRD, SEM and magnetization measurement. Both pure and doped samples show higher critical current densities and irreversible field H irr compared with samples sintered at the same temperature by a slow process. Experimental results manifest that fast heating-up is effective in reducing the grain size. This rapid process may be preferable to avoid grain size enlarging when element substitution can be achieved only at relatively high temperatures.
Similar content being viewed by others
References
Nagamatsu, J., Nakagawa, N., Muranaka, T., Zenitani, Y., Akimitsu, J.: Nature 410, 63 (2001)
Chen, S.K., Tan, K.S., Glowacki, B.A., Yeoh, W.K., Soltanian, S., Horvat, J., Dou, S.X.: Appl. Phys. Lett. 87, 182504 (2005)
Dou, S.X., Yeoh, W.K., Horvat, J., Ionescu, M.: Appl. Phys. Lett. 83, 24 (2003)
Lee, S., Masui, T., Yamamoto, A., Uchiyama, H., Tajima, S.: Physica C 397, 7–13 (2003)
Wang, X.L., Soltanian, S., Horvat, J., Liu, A.H., Qin, M.J., Liu, H.K., Dou, S.X.: Physica C 361, 149–155 (2001)
Sandu, V., Aldica, G., Badica, P., Groza, J.R., Nita, P.: Supercond. Sci. Technol. 20, 836–842 (2007)
Dou, S.X., Yeoh, W.K., Horvat, J., Ionescu, M.: Appl. Phys. Lett. 83, 4996 (2003)
Dou, S.X., Pan, A.V., Zhou, S., Ionescu, M., Wang, X.L., Horvat, J., Liu, H.K., Munroe, P.R.: J. Appl. Phys. 94, 3 (2003)
Xu, G.J., Pinholt, R., Bilde-Sørensen, J., Grivel, J.-C., Abrahamsen, A.B., Andersen, N.H.: Physica C 434, 67–70 (2006)
Vajpayee, A., Awana, V.P.S., Bhalla, G.L., Kishan, H.: Nanotechnology 19, 125708 (2008)
Yamamoto, A., Shimoyama, J.-I., Ueda, S., Horii, S., Kishio, K.: Physica C 445–448, 801–805 (2006)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Ding, Y., Wang, H.C., Zhao, F.X. et al. Nano-SiC Doped MgB2 Bulks Synthesized by Rapid Process. J Supercond Nov Magn 23, 633–636 (2010). https://doi.org/10.1007/s10948-010-0701-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10948-010-0701-4