A possible solution of the grain boundary problem for applications of high-Tc superconductors

Details A possible solution of the grain boundary problem for applications of high-Tc superconductors A possible solution of the grain boundary problem for applications of high-Tc superconductors

2002-08-13

arxiv.org/abs/cond-mat/0208253v1

Physics

Condensed Matter

Superconductivity

3 pages, 5 figures

Scientific paper

10.1063/1.1516831

It is shown that the critical current density of high-Tc wires can be greatly enhanced by using a threefold approach, which consists of grain alignment, doping, and optimization of the grain architecture. According to model calculations, current densities of 4x10^6 A/cm2 can be achieved for an average grain alignment of 10 degree at 77K. Based on this approach, a road to competitive high-Tc cables is proposed.

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