Synthesis and property optimization of melt quenched BPbSCCO superconductors

• Main Authors: Palisoc, Shirley Tiong, Natividad, Michelle T., Mendoza, Phebe P.
• Format: text
• Published: Animo Repository 2009
• Subjects: Physics
• Online Access: https://animorepository.dlsu.edu.ph/faculty_research/11671
• Institution: De La Salle University

The melt quenched method was applied in the fabrication of Bi1.6Pb0.4Sr2Can−1CunOy superconducting ceramics with n = 2.0, 2.5, 3.0 and 3.5. The samples were prepared as determined by its stoichiometric composition by melting it at 10800C. The melts were poured immediately onto a stainless steel plate and quenched to room temperature. The samples were ground, pelletized and annealed at a constant temperature of 8400C for 24 hours. Tc SEM and XRD measurements were made. XRD results showed the coexistence of the low Tc, high Tc and several non superconducting phases. An increase in Ca and Cu facilitate the growth of the high Tc phase.