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Application of the metallurgical route for synthesis of 110 K Bi-Pb(Sb)-Sr-Ca-Cu-O superconducting oxides

Journal Article


Abstract


  • Bulk nearly single phase Bi-2223 materials doped with Pb and Sb were prepared using the metallurgical route. Li-doped samples were also synthesized, but Li leads to the 2212 phase and prevents the formation of the 2223 phase. The dependence of the sintering conditions on the phases obtained was studied and the influence of different factors on the melting temperature and the temperature required for the formation of the 2223 phase is discussed. For the materials with nominal composition Bi1.5Pb0.3Sb0.1Sr2Ca2Cu3Oy, Tc(zero) = 111 K was achieved. It was found that the Sb-rich phase segregates on the surface of the superconducting grains. © 1994, Materials Research Society. All rights reserved.

Publication Date


  • 1994

Citation


  • Konstantinov, K., Michel, D., & Ochin, P. (1994). Application of the metallurgical route for synthesis of 110 K Bi-Pb(Sb)-Sr-Ca-Cu-O superconducting oxides. Journal of Materials Research, 9(11), 2764-2770. doi:10.1557/JMR.1994.2764

Scopus Eid


  • 2-s2.0-0028544539

Start Page


  • 2764

End Page


  • 2770

Volume


  • 9

Issue


  • 11

Abstract


  • Bulk nearly single phase Bi-2223 materials doped with Pb and Sb were prepared using the metallurgical route. Li-doped samples were also synthesized, but Li leads to the 2212 phase and prevents the formation of the 2223 phase. The dependence of the sintering conditions on the phases obtained was studied and the influence of different factors on the melting temperature and the temperature required for the formation of the 2223 phase is discussed. For the materials with nominal composition Bi1.5Pb0.3Sb0.1Sr2Ca2Cu3Oy, Tc(zero) = 111 K was achieved. It was found that the Sb-rich phase segregates on the surface of the superconducting grains. © 1994, Materials Research Society. All rights reserved.

Publication Date


  • 1994

Citation


  • Konstantinov, K., Michel, D., & Ochin, P. (1994). Application of the metallurgical route for synthesis of 110 K Bi-Pb(Sb)-Sr-Ca-Cu-O superconducting oxides. Journal of Materials Research, 9(11), 2764-2770. doi:10.1557/JMR.1994.2764

Scopus Eid


  • 2-s2.0-0028544539

Start Page


  • 2764

End Page


  • 2770

Volume


  • 9

Issue


  • 11