High Pressure-High Temperature Effect on the HTSC Ceramics Structure and Properties

摘要

The present paper looks at the high pressure and temperature effect on the structure, phase composition, superconductive, and mechanical behavior of high temperature superconducting ceramics MeBa_2Cu_3O_(7-δ) (Me = Y, La, Nd, Gd, Sm, Eu), ceramics based on superconductive compounds of the Bi-Pb-Sr-Ca-Cu-O system, the so-called 2212 and 2223 phases, and also on the infinite-layer compounds of the nominal composition Sr_(0.7)Ca_(0.3)CuO_2. It has been shown that under high pressure-high temperature conditions, materials with high superconductive and mechanical characteristics can be obtained and the increase in critical current density can be the result of such a treatment.