Cs. Pande et Ra. Masumura, GRAIN-BOUNDARY AND GRAIN-SIZE EFFECTS IN HIGH AND LOW TRANSITION-TEMPERATURE SUPERCONDUCTORS, Materials science & engineering. B, Solid-state materials for advanced technology, 32(3), 1995, pp. 247-253
The role played by grain boundaries in both low and high transition te
mperature superconductors is discussed, using dislocation models of a
grain boundary. Analytical expressions are obtained which relate criti
cal current capacity with grain size in these materials. The analytica
l results are in good accord with experiments.