Effects of precursor powder particle size on critical current density and microstructure of Bi-2223/Ag tapes

1998 ◽  
Vol 296 (1-2) ◽  
pp. 13-20 ◽  
Author(s):  
J Jiang ◽  
J.S Abell
Keyword(s):  
Particle Size ◽  
Critical Current Density ◽  
Critical Current ◽  
Powder Particle ◽  
Current Density ◽  
Precursor Powder ◽  
Powder Particle Size

The Influence of Precursor Powder on Critical Current Density of Ag/Bi-2223 Tapes

1999 ◽  
pp. 891-894
Author(s):  
H. L. Zheng ◽  
Z. Z. Duan ◽  
C. S. Li ◽  
P. X. Zhang ◽  
L. Zhou ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Precursor Powder

Transport Critical Current Density and Flux Pinning Enhancement in Nano-Sized PbO and HfO2 Added (Bi1.6Pb0.4)Sr2Ca2Cu3O10 Superconductor

2015 ◽  
Vol 1108 ◽  
pp. 85-90
Author(s):  
Nabil A.A. Yahya ◽  
R. Abd-Shukor
Keyword(s):  
Particle Size ◽  
Transition Temperature ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Flux Pinning ◽  
Homogeneous Distribution ◽  
Transport Critical Current Density ◽  
Superconducting Properties ◽  
Pinning Centers

A comparative study on the effect of PbO (10-30 nm) and HfO2 (60-80 nm) additions on the superconducting properties of (Bi1.6Pb0.4)Sr2Ca2Cu3O10 ((Bi,Pb)-2223) superconductor in the bulk form was carried out. The structure and the microstructure of prepared samples were examined by powder XRD and SEM, respectively. The transition temperature Tc and critical current density Jc was determined by standard dc four-probe method. SEM micrographs showed a homogeneous distribution of Pb and Hf in the samples. It was observed that PbO and HfO2 additions enhanced Jc for all added samples. Jc was the highest for x= 0.05 wt. % of PbO (1130 mA/cm2 at 77 K and 1930 mA/cm2 at 30 K) and HfO2 (900 mA/cm2 at 77 K and 1760 mA/cm2 at 30 K) addition. This study showed that the addition of PbO and HfO2 nanopowder provided extra flux pinning centers in the (Bi, Pb)-2223. PbO with smaller particle size showed higher Jc compared with HfO2 which has a larger particle size.

Effect of precursor powder on microstructure and critical current density of (Bi,Pb)-2223 tapes

2003 ◽  
Vol 386 ◽  
pp. 138-141 ◽  
Author(s):  
H.L. Zheng ◽  
Z.M. Yu ◽  
X.M. Xiong ◽  
C.S. Li ◽  
P.X. Zhang ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Precursor Powder

scholarly journals Strong influence of precursor powder on the critical current density of Fe-sheathed MgB2tapes

2007 ◽  
Vol 20 (6) ◽  
pp. 574-578 ◽  
Author(s):  
Dongliang Wang ◽  
Yanwei Ma ◽  
Zhengguang Yu ◽  
Zhaoshun Gao ◽  
Xianping Zhang ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Strong Influence ◽  
Precursor Powder
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