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7 results on '"Shan, Y.Q."'

2. Study of magnetization relaxation on zone-melted YBa(2)Cu(3)O(6+x) superconductors

Author

Qin, M.J., Jin, X., Ji, H.L., Shi, Z.X., Yao, X.X., Fan, Z.G., and Shan, Y.Q.

Subjects
Superconductors -- Magnetic properties, Flux pinning -- Analysis, Physics
Abstract

SQUID studies of magnetic relaxation and hysteresis on a zone-melted YBa2Cu3O(6+x) sample suggest a nonlogarithmic magnetization decay at high temperature, which can be attributed to a nonlinear U(J) relationship originating from the local pinning potential Up(x). The U(J) relationship helps determine the local pinning potential to be Up(x) = U0(x/x0)(1-ln(x/x0)).

Published
1995

6. Effects of Ag on preparation and Jcof textured YBCO superconductor

Author

Fan, Z.G., Shan, Y.Q., Wang, W.H., Wang, X.Y., Soh, D.W., and Zhao, Z.X.

Abstract

The textured and Ag doped YBCO superconductors were studied, in which Ag contents were 0–18wt%. DTA method was used to determine the starting melt temperatures of YBCO with different Ag contents. The critical current densities of the samples were compared. It was found that doped Ag in YBCO matrix formed Ag inclusions with size 10–50 μ m observed by SEM. The saturated solubility of Ag in YBCO is about 15wt%.

Published
1997
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