Thick-Film and Powder-in-Tube Processing for Tl-Oxide Wire and Tape

R. D. Blaugher, R. N. Bhattacharya, P. A. Parilla, Z. F. Ren, J. H. Wang

Research output: Contribution to conferencePaperpeer-review

Abstract

The wire and tape processing of the Tl-oxides, compared to Bi-oxide, is not as well advanced due to a reduced level of effort. The Tl-oxide single layer compounds, moreover, offer high intrinsic pinning with potential for high field operation at 77 K. The Tl-PIT processed to date has not achieved the expected transport properties due to poor inter-grain connectivity resulting from an inability to texture the superconducting core. On the other hand, thick-film processing methods, as offered by electrodeposition and spray pyrolysis have demonstrated the ability to obtain a highly textured microstructure with good in-field transport properties. This paper will review the progress in the Tl-oxide wire and tape processing for both PIT and thick-film techniques. The role of the powder precursor related to reactivity, mixing and particle size on Tl-PIT methods will be discussed. Electrodeposited wire or tape is advanced as a viable low cost alternative to powder-in-tube processing.

Original languageAmerican English
Pages241-251
Number of pages11
StatePublished - 1994
EventProceedings of the Symposium on Processing of Long Lengths of Superconductors - Pittsburgh, PA, USA
Duration: 17 Oct 199321 Oct 1993

Conference

ConferenceProceedings of the Symposium on Processing of Long Lengths of Superconductors
CityPittsburgh, PA, USA
Period17/10/9321/10/93

NREL Publication Number

  • NREL/CP-413-6074

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