TY - JOUR
T1 - Properties of Li-doped, polycrystalline, melt-textured, BiSrCaCuO tapes prepared by powder-in-tube processing
AU - Schwartz, J.
AU - Wu, S.
N1 - Funding Information:
ACKNOWLEDGEMENTS This work supported in part by the Science and Technology Center for Superconductivity. The Francis Bitter National Magnet Laboratory (Yc(B, T) measurements) is supported by the National Science Foundation.
PY - 1991/12/1
Y1 - 1991/12/1
N2 - The effects of Li on Ag-sheathed Bi2Sr2CaCu2O8+x tapes have been studied by considering Li substitutions for Sr and Cu and Li additions to stoichiometric Bi2Sr2CaCu2O8+x. The materials were prepared by the powder-in-tube method. As the Li substitution reduces the melting temperature by as much as 160 K, careful control of the processing conditions is required to obtain superconductivity in Li-doped samples. Here we report on the effects upon Jc(B,T) and upon Tc. Jc(B) at 4.2 K and 20 K are reported. Due to a lack of phase purity, Li reduced the overall Jc of the tapes. At 20 K, however, the Li-doped material is much less dependent upon B, indicating that Li substitution may provide enhanced pinning at high field.
AB - The effects of Li on Ag-sheathed Bi2Sr2CaCu2O8+x tapes have been studied by considering Li substitutions for Sr and Cu and Li additions to stoichiometric Bi2Sr2CaCu2O8+x. The materials were prepared by the powder-in-tube method. As the Li substitution reduces the melting temperature by as much as 160 K, careful control of the processing conditions is required to obtain superconductivity in Li-doped samples. Here we report on the effects upon Jc(B,T) and upon Tc. Jc(B) at 4.2 K and 20 K are reported. Due to a lack of phase purity, Li reduced the overall Jc of the tapes. At 20 K, however, the Li-doped material is much less dependent upon B, indicating that Li substitution may provide enhanced pinning at high field.
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U2 - 10.1016/0921-4534(91)91326-Y
DO - 10.1016/0921-4534(91)91326-Y
M3 - Article
AN - SCOPUS:0026408194
VL - 185-189
SP - 2403
EP - 2404
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - PART 4
ER -