Physical–mechanical, superconducting, thermo-physical properties and interphase phenomena of polymer–ceramic nano-composites

Physical–mechanical properties of superconducting polymer–ceramic composites, obtained on the basis of oxide ceramics Y1Ba2Cu3O7−x and a number of polymeric binders have been investigated. As it could be expected, the decrease of temperature of composite experiments till cryogen temperature leads to a rigid decrease of deformation of materials. However, it increases their resistance to rupture. The influence of granule metrical content and degree of filling Y1Ba2Cu3O7−x by ceramic on the interstitial boundary, the module of flexibility, elongation, and on the critical temperature of transition into superconducting condition has been investigated. It has been discovered, that regardless of the size of ceramicʹs grains, the increase of its amount leads to the increase of resistance to rupture, module and to the decrease of limiting deformation, whereas the increase of average sizes of ceramicʹs grains worsens resistant properties. However, it increases superconducting properties of composites. Thermo-physical properties for superconducting polymer–ceramic composites with superhighmolecular polyethylene and isotactic polypropylene binders has been investigated. For the composites mentioned the increase of melting heats has been found out. This has been explained by intercalation of macromolecules’ fragments into the interstitial layer of ceramics’ grains. This phenomena leads to the change of morphological structure of superconducting nano-composites obtained. The latter has been proved by electron microscopy.