Phase development in partial-melt processing of silver-clad Bi{sub 2.15}Sr{sub 1.83}Ca{sub 1.02}Cu{sub 2}O{sub x} tapes
Ag-clad Bi{sub 2.15}Sr{sub 1.83}Ca{sub 1.02}Cu{sub 2}O{sub x} tapes were fabricated by the powder-in-tube method and heated in air to maximum temperatures of 880--895{degrees}C. The tapes were characterized by differential thermal analysis, scanning electron microscopy, energy-dispersive X-ray analysis, and X-ray diffraction. Microstructures of tapes that were heated at 885--895{degrees}C were similar, and, at a given temperature, remained stable for up to 1.0 h, which was the longest time used. The most significant microstructural features in specimens quenched from the melt were voids of up to {approx}400 {mu}m in diameter. CuO was a minor phase in the melt, but grew significantly upon cooling to become the major nonsuperconducting phase when solidification was complete.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); Argonne National Lab., IL (United States)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 237123
- Report Number(s):
- ANL/ET/CP-87255; CONF-960202-28; ON: DE96009047
- Resource Relation:
- Conference: Annual meeting and exhibition of the Minerals, Metals and Materials Society (TMS), Anaheim, CA (United States), 4-8 Feb 1996; Other Information: PBD: Mar 1996
- Country of Publication:
- United States
- Language:
- English
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