Creep of polycrystalline (Bi,Pb){sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub x}

Journal Article · Fri Apr 14 00:00:00 EDT 2000 · Scripta Materialia

DOI:https://doi.org/10.1016/S1359-6462(99)00424-8· OSTI ID:20050501

Martinez-Fernandez, J; Dominguez-Rodriguez, A; Routbort, J L; Goretta, K C

Plastic deformation has proved to be essential to the manufacture of bulk (Bi,Pb){sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub x} (Bi-2223) superconductors. Compressive creep of dense, forged Bi-2223, Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub x} (Bi-2212), and Bi{sub 2}Sr{sub 2}CuO{sub x} (Bi-2201) superconductors has been studied. These previous studies left unanswered questions about the large variation in Q among the Bi-superconductors and the rate-controlling deformation mechanism. The goals of this work were to test high-quality bulk Bi-2223 to determine whether steady state can be established, and if so, to determine the dominant creep mechanism and the values of n and Q.

• Research Organization: Univ. de Sevilla (ES)
• Sponsoring Organization: Ministerio de Educacion y Cincias of Spain; USDOE
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 20050501
• Journal Information: Scripta Materialia, Vol. 42, Issue 8; Other Information: PBD: 14 Apr 2000; ISSN 1359-6462
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
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SUPERCONDUCTORS
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