Comparative Study of Electrical and Structural Properties of Solar-Sintered and Conventionally Processed Bi-2223 SuperconductorsKhurramov Aziz, Amirkulov Nuritdin, Urakova Maxsad, Jumayeva Zulfiya, Naimova Nargiza and Rahimova NorbibishE3S Web Conf., 692 (2026) 04001DOI: https://doi.org/10.1051/e3sconf/202669204001