Fabrication and microstructural development of Ag-clad TlBa{sub 2}Ca{sub 2}Cu{sub 3}O{sub x} tapes
Conference
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OSTI ID:10174993
Three different 1223 powders with varied phase distributions were used to fabricate tapes by the powder-in-tube process. It was found that powders consisting primarily of phase pure 1223 were superior to a phase assemblage of Ca{sub 2}CuO{sub 3}, BaCuO{sub 2}, and Tl{sub 2}O{sub 3} powders. No texturing in the microstructure was observed for any of the annealing times or temperatures. Critical current densities over 5,000A/cm{sup 2} were measured at 77 K, and J{sub c} degraded as the number of impurity phases increased. Further work will focus on other phase assemblages in the starting powder to determine if grain growth and alignment can be achieved in 1223.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10174993
- Report Number(s):
- ANL/ET/CP--78557; CONF-930703--8; ON: DE93017407
- Country of Publication:
- United States
- Language:
- English
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