ANALYSIS OF THE CRITICAL TEMPERATURE OF SUPERCONDUCTOR SAMPLES BASED ON Bi1,7Pb0,3Sr2Ca(n-1)Cu(n)Oy (n=9-20) PRECURSORS OBTAINED IN A LARGE SOLAR FURNACE. ICMSS [Internet]. 2025 Sep. 15 [cited 2026 May 17];:6-9. Available from: https://econfseries.com/index.php/5/article/view/2829