Realization of practical level current densities in Sr0. 6K0. 4Fe2As2 tape conductors for high-field applications

X Zhang, C Yao, H Lin, Y Cai, Z Chen, J Li… - Applied Physics …, 2014 - pubs.aip.org
122 type pnictide superconductors are of particular interest for high-field applications
because of their large upper critical fields H c2 (> 100 T) and low anisotropy γ (< 2) …

Strongly enhanced current densities in Sr0.6K0.4Fe2As2 + Sn superconducting tapes

H Lin, C Yao, X Zhang, H Zhang, D Wang, Q Zhang… - Scientific reports, 2014 - nature.com
Improving transport current has been the primary topic for practical application of
superconducting wires and tapes. However, the porous nature of powder-in-tube (PIT) …

[PDF][PDF] Interfaces and misfit defects in nanostructured and polycrystalline films

IA Ovid ko - REVIEWS ON ADVANCED MATERIALS SCIENCE, 2000 - ipme.ru
Theoretical models are reviewed which describe misfit defect structures at interfaces
(intergrain and interphase boundaries) in nanostructured and polycrystalline films. The …

Effects of misfit stresses on high-TC superconductivity in thin-film cuprates

IA Ovid'ko - Journal of Physics: Condensed Matter, 2001 - iopscience.iop.org
Abstract Effects of misfit stresses on the high-transition-temperature superconducting
properties of thin-film cuprates are predicted and theoretically examined. A substantial …

Phase evolution of Ba2YCu3O6+ x films during the BaF2 process

W Wong-Ng, I Levin, R Feenstra… - Superconductor …, 2004 - iopscience.iop.org
High-temperature x-ray diffraction and transmission electron microscopy were used to study
the phase evolution and reaction kinetics during the ex situ BaF 2 conversion process to …

Effects of misfit stresses on the structure and transport properties of grain boundaries in high- superconducting films

SV Bobylev, IA Ovid'ko, AG Sheinerman - Physical Review B, 2001 - APS
A theoretical model is suggested that describes the effect of misfit stresses on the structure
and the transport properties of tilt boundaries in high-transition-temperature …

Time evolution of phase composition and microstructure in the Ag/Bi-2223 composite superconductor heat-treated at specific pO2/temperature set points

RM Baurceanu, VA Maroni, NN Merchant… - Superconductor …, 2002 - iopscience.iop.org
The time evolution of the phases present in the ceramic cores of silver-sheathed (Bi, Pb) 2 Sr
2 Ca 2 Cu 3 O x (Ag/Bi-2223) multifilament superconducting tapes heat-treated at selected …

Investigation of a multi-set-point first heat treatment methodology for the silver-sheathed (Bi, Pb) 2Sr2Ca2Cu3Ox composite conductor

RM Baurceanu, VA Maroni, NM Merchant… - Superconductor …, 2002 - iopscience.iop.org
A new type of first heat treatment procedure for the silver-sheathed (Bi, Pb) 2 Sr 2 Ca 2 Cu 3
O x composite conductor (Ag/Bi-2223) has been investigated. This new procedure consists …

Grain connectivity and flux pinning in Bi-2223/Ag PIT tapes

R Zeng, B Ye, J Horvat, YC Guo, B Zeimetz… - Physica C …, 1998 - Elsevier
A hot-pressing technique was used to prepare Ag-sheathed Bi-2223 multifilamentary tapes
in order to study its effect on grain connectivity and flux pinning. The self field critical current …

Optimization of processing to improve critical current density of Ag/Bi-2223 tapes

SX Dou, R Zeng, B Ye, YC Guo, QY Hu… - Superconductor …, 1998 - iopscience.iop.org
Several recent developments in powder-in-tube (PIT) processing are presented. A cryogenic
deformation process has been developed, involving rolling or pressing the wires and tapes …