Synthesis and Transport Properties of Porous Superconducting Ceramics of YBa₂Cu₃O_7-σ

摘要

This work presents the method of producing an open porous structure that is based on a ceramic high superconductor YBa₂Cu₃O_7-σ "filled with a sugar supplement". The results of the electric resistance measurements at different external magnetic fields are also presented. The obtained results have revealed a significant influence of the pore presence in the superconducting samples on the electrical resistance values, especially below the T_c temperature.