A note on the peculiarities of producing of high-temperature super-conducting polymer-ceramic composites

High-temperature super-conducting polymer-ceramic composites were obtained based on Y1Ba2Cu3O7−x and a range of binders. Independent of the matrix type used, superconducting properties of the samples are missing (Maisner effect is absent) for the polymer-ceramic composites, formed by the hot pressing method at 200 °C. Restoration of superconducting processes occurs only after treatment of samples in the stream of dry oxygen at α-transition temperature of the polymeric binder. Articles formed at 130 °C possess stable superconducting properties. And polyolefin binder, preserve the same critical superconducting (SC) transition parameters as the initial ceramic has, while acryl and vinyl homo- and co-polymers enhance the critical SC initiation transition temperature by 1-2 °C. Broadening of SC transition temperature interval of the composites at higher temperatures of formation (≥160 °C) is associated with thermo-oxidation destruction of the polymeric binder. Factors facilitating to the decline of destruction of the matrix reducing pressing duration, addition of anti-oxidants) allows to uphold the critical SC transition parameters of the initial ceramic. Polymerization methods of obtainment of polymer-ceramic composites permit to enhance SC characteristics of the materials versus the initial ceramic.