Fabrication of Bi-2212 Films on Ag Substrate by Dip-Coating Method

Abstract:

In this study, Bi₂Sr₂CaCu₂O_x (Bi-2212) thick films on Ag substrate were fabricated using the dip-coating method. Firstly, the Bi-2212 powders were prepared by Sol-Gel process. Metal nitrates were used as starting materials and ethylenediaminetetracetic acid (EDTA) was used as chelating agent. Secondly, the resulting powders were used as solute, and polyvinyl butyral (PVB) was used as solvent to prepare suspension via stirring and ultrasonic vibration. Then the suspension was dip-coated on Ag substrate. After heat treatments, the phase compositions of the samples were characterized using the XRD. The microstructure was observed using SEM. Experimental results show that the sintering temperature strongly influence the phase formation of Bi–2212.

• Periodical: Key Engineering Materials (Volumes 512-515)
• Pages: 360-363
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.512-515.360
• Online since: June 2012
• Authors: Jie Xu, Ming Ya Li, Xiao Yan Wang
• Keywords: Ag Substrate, Bi-2212 Film, Dip-Coating Method

References

[1] Y.J. Su, Y. Satoh, S. Arisawa, Y. Takano, A. Ishii, T. Hatano, K. Togano. Synthesis of Bi-2212 ribbon-like thin films on flat Ag substrates, Phys. C. 376 (2002) 67-72.

DOI: 10.1016/s0921-4534(01)00994-7

[2] T. Muroga, J. Sato, H. Kitaguchi, H. Kumakura, K. Togano, M. Okada. Enhancement of critical current density for Bi-2212/Ag tape conductors through microstructure control, Phys. C. 309 (1998) 236-244.

DOI: 10.1016/s0921-4534(98)00593-0

[3] X.M. Yu, H.Z. Yang, Y. Qi. The preparation of c-axis epitaxial Bi-2212 films on STO (100) by sol-gel method, Appl. Surf. Sci. 258 (2011) 38-43.

DOI: 10.1016/j.apsusc.2011.08.002

[4] M. Haruta1, S. Sakai. Large grain growth by annealing of Ag-covered Bi2Sr2CaCu2O8+d thin films and its application in the fabrication of intrinsic Josephson junctions, Supercond. Sci. Technol. 23 (2010) 1-5.

DOI: 10.1088/0953-2048/23/11/115006

[5] D. Buhl, T. Lang, M. Cantoni, D. Risold, B. Hallstedt, L.J. Gauckler. Critical current densities in Bi-2212 thick films, Phys. C. 257 (1996) 151-159.

DOI: 10.1016/0921-4534(95)00697-4

[6] Y. Song, L. Zhao, P. Li, T.M. Qu, Y. Huang, Z. Han. The preparation and characterization of Bi-2212 film on Ag substrate by dip-coating method, Phys. C. 442 (2006) 134-138.

DOI: 10.1016/j.physc.2006.04.098

[7] H.B. Liu, Paulo J. Ferreira, John B. Vander Sande. Processing Bi-2212/Ag thick film under a high magnetic field: on the Bi-2212/Ag interface effect, Phys. C. 303 (1998) 161-168.

DOI: 10.1016/s0921-4534(98)00250-0

[8] N.T. Mua, C.R. Serrao, Shipra, A.Sundaresan, T.D. Hien, N.K. Man. High critical current density in Ag-doped Bi-2212 thin films, Supercond. Sci. Technol. 21 (2008) 1-5.

DOI: 10.1088/0953-2048/21/10/105002

[9] I.S. Park, K.S. Lee, S.C. Han, T.H. Sung. Formation of the Bi-2212 phase in a BiSrCaO thick film screen printed on Cu/Ni/Cu substrate, Appl. Phys. Lett. 91 (2007) 042501-3.

DOI: 10.1063/1.2754639

[10] S. Köbel, D. Schneider, D. Sager, P. Sütterlin, L. Fall, L.J. Gauckler. Processing and properties of Bi2Sr2CaCu2Ox thick films on polycrystalline magnesium oxide substrates, Phys. C. 399 (2003) 107-119.

DOI: 10.1016/s0921-4534(03)01298-x

[11] W. Paul, Th. Baumann. Inductive measurements of intergranular critical currents in ceramic rings: A comparison between sintered and melt processed Y-, Bi- Tl-based superconductors, Phys. C. 175 (1994) 102-110.

DOI: 10.1016/0921-4534(91)90240-y