Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Zheng He Han"'
Autor:
Feng Feng, Zheng He Han, Yan Yi Zhang, Kai Shi, Timing Qu, Jun Jun Wei, Xiao Hao Wang, Wei Wu, Shao Zhu Xiao, Rong Xia Huang
Publikováno v:
Materials Science Forum. :225-232
on beam assisted deposition (IBAD) is an important technique to fabricate the second generation high temperature superconducting (2G HTS) wires. Among the fabrication routes of 2G HTS long wires, IBAD route achieved the best performance in recent yea
Publikováno v:
Key Engineering Materials. :719-722
The stability range of lead oxide compounds Pb3Sr2.5Bi0.5Ca2CuOy (3321) phase in Bi-system high temperature superconducting materials has been investigated. In this study (Bi,Pb)2Sr2Ca2Cu3Ox (BSCCO) powder was heat treated in different oxygen partial
Publikováno v:
Key Engineering Materials. :557-560
Preparing Superconducting Bi-2223 films by dip-coating method is innovative and valuable. The advantages of this technique are low cost and precise stoichiometric. Controlling the evaporation of Pb efficiently can improve the formation of Bi-2223 pha
Publikováno v:
2015 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD).
Superconducting YBa2Cu3O7−δ (YBCO) thin films with critical current density over 4 MA/cm2 (77 K, self field) can be routinely obtained in only 130 min thanks to the polyethylene glycol (PEG) assisted trifluoroacetate metal-organic deposition (TFA-
Autor:
Ming Ya Li, Zheng He Han
Publikováno v:
Key Engineering Materials. :638-640
The effect of pre-treatment on the microstructure and critical current of (Bi,Pb)-2223/Ag tapes has been investigated. Experimental results show that pre-treatment has important influences on the formation and the grain size of the (Bi,Pb)-2223 phase
Autor:
Ming Ya Li, Zheng He Han
Publikováno v:
Key Engineering Materials. :641-643
The effect of lead oxide compounds in (Bi,Pb)2Sr2Ca2Cu3Ox ((Bi,Pb)-2223) precursor powder on the microstructure and properties of Bi-2223/Ag tapes was investigated. Firstly, precursor powders containing different types of lead-rich phases were prepar
Autor:
Zheng He Han
Publikováno v:
2013 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices.
HTS applications should have good future in China. The economy feasibility of HTS large scale applications, for example HTS cable, will be addressed. For the large scale applications, Bi-2223 wire plays an important role. Recent developments of Bi-22
Publikováno v:
ChemInform. 22
The system Y2Co17Cx was investigated by nuclear magnetic resonance zero field spin echo spectroscopy of 89Y. From the satellite line intensity it was deduced that the limiting concentration of the interstitial solution of carbon is very low and corre
Publikováno v:
Journal of the Less Common Metals. 169:L5-L9
The system Y2Co17Cx was investigated by nuclear magnetic resonance zero field spin echo spectroscopy of 89Y. From the satellite line intensity it was deduced that the limiting concentration of the interstitial solution of carbon is very low and corre
Publikováno v:
Chinese Physics Letters; Apr2006, Vol. 23 Issue 4, p1-1, 1p