Microstructure and superconducting property of Bi₂Sr₂CaCu₂O₈ films quenched in different quenching methods

Authors

Maricar M. Rosete ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Myles Allen H. Zosa ⋅ JP Institute of Laser Engineering, Osaka University
Roland V. Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

The microstructure and superconducting property of Bi₂Sr₂CaCu₂O₈ (Bi-2212) films are compared after normalizing and quenching in cold bath. The suspension of 0.10 g finely ground Bi-2212 powder in 30 mL ethanol was prepared and used in the fabrication of films via electrophoretic deposition (EPD). The films were normalized and quenched in a cold bath post-partial melting at 970^oC, and annealed. It has been found that cold water quenching results in low c-axis oriented growth, weak intergrain connection, and low onset critical temperature (T_c-onset) and broad superconducting transition. The T_c-onset obtained is 77.45 K with a transition width (∆T) of 56.20 K. The results point to the existence of an optimal temperature difference in the partial melting phase.

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Issue

2016: Proceedings of the 34th Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2016-PA-03

Section

Poster Session PA

Published

2016-08-18

How to Cite

[1]

MM Rosete, MAH Zosa, and RV Sarmago, Microstructure and superconducting property of Bi2Sr2CaCu2O8 films quenched in different quenching methods, Proceedings of the Samahang Pisika ng Pilipinas 34, SPP-2016-PA-03 (2016). URL: https://proceedings.spp-online.org/article/view/SPP-2016-PA-03.