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.