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Effect of addition of TiO2/SiO2 nanoparticles on Hc2 and Hirr in MgB2 bulks

Conference Paper


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Abstract


  • 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 750ÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂúC 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.

Authors


  •   Zhang, Yun (external author)
  •   Soltanian, Saeid (external author)
  •   Zhao, Yue
  •   Zhou, Sihai (external author)
  •   Dou, Shi Xue

Publication Date


  • 2008

Citation


  • Zhang, Y., Soltanian, S., Zhao, Y., Zhou, S. & Dou, S. Xue. (2008). Effect of addition of TiO2/SiO2 nanoparticles on Hc2 and Hirr in MgB2 bulks. International Conference On Nanoscience and Nanotechnology (pp. 97-100). Melbourne, Australia: IEEE.

Scopus Eid


  • 2-s2.0-56349143362

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1504&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/486

Start Page


  • 97

End Page


  • 100

Abstract


  • 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 750ÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂúC 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.

Authors


  •   Zhang, Yun (external author)
  •   Soltanian, Saeid (external author)
  •   Zhao, Yue
  •   Zhou, Sihai (external author)
  •   Dou, Shi Xue

Publication Date


  • 2008

Citation


  • Zhang, Y., Soltanian, S., Zhao, Y., Zhou, S. & Dou, S. Xue. (2008). Effect of addition of TiO2/SiO2 nanoparticles on Hc2 and Hirr in MgB2 bulks. International Conference On Nanoscience and Nanotechnology (pp. 97-100). Melbourne, Australia: IEEE.

Scopus Eid


  • 2-s2.0-56349143362

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1504&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/486

Start Page


  • 97

End Page


  • 100