Publication Details

This conference paper was originally published as Zhang, Y, Soltanian, S, Zhao, Y, Zhou, S, Dou, SX, Effect of Addition of TiO2/SiO2 Nanoparticles on Hc2 and Hirr in MgB2 Bulks, Proceedings of the 2008 International Conference on Nanoscience and Nanotechnology (ICONN2008), 25-29 February 2008, 97-100, Melbourne, Australia: IEEE. Copyright IEEE 2008. Original conference information available here


In this paper, MgB2 bulks were prepared with doped TiO2 nanoparticles surface-modified by 5-10% SiO2. Quantitative X-ray diffraction (XRD) analysis was performed to obtain the weight fraction of impurities using the Rietveld method. The effects of addition of TiO2/SiO2 nanoparticles on the critical temperature (Tc), the upper critical field (Hc2), and the irreversibility field (Hirr) as a function of doping rates at 750°C are reported. It has been found that the addition of TiO2/SiO2 nanoparticles resulted in small depressions in Tc, while the Hc2 and Hirr performances were improved due to TiO2/SiO2 nanoparticle doping.

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