Transport and magnetization critical current densities in TlBa{sub 2}Ca{sub 2}Cu{sub 3}O{sub x} tapes [electronic resource]
The powder in tube process was used to produce silver-sheathed tapes of TlBa₂Ca₂Cu₃O{sub 8+x} (Tl-1223). The powder was produced by thalliating a precursor powder mixture to produce the Tl-2223 phase and then beating to drive off excess Tl and reach the Tl-1223 stoichiometry. The tapes were rolled a...
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Online Access |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy. ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
1992.
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| Summary: | The powder in tube process was used to produce silver-sheathed tapes of TlBa₂Ca₂Cu₃O{sub 8+x} (Tl-1223). The powder was produced by thalliating a precursor powder mixture to produce the Tl-2223 phase and then beating to drive off excess Tl and reach the Tl-1223 stoichiometry. The tapes were rolled and pressed, each step followed with a 3 h sintering. The 200 μm thick tapes show little sign of texturing; however, the critical current shows a small (∼50%) dependence on the direction of the applied magnetic field. Both transport and magnetization measurents indicate relatively strong pinning at high temperatures. The 75 K self field critical current density is 62 MA/m². Transport measurements reveal the presence of weak links at all temperatures, but with a relatively weak field dependence above ≈0.1T. |
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| Item Description: | Published through SciTech Connect. 10/01/1992. "la-ur--92-3069" " conf-920802--17" "DE93000651" Applied superconductivity conference,Chicago, IL (United States),23-28 Aug 1992. Peterson, D.E.; Willis, J.O.; Bingert, J.F.; Coulter, J.Y.; Maley, M.P.; Kung, P.J.; Wahlbeck, P.G.; Phillips, D.S. |
| Physical Description: | 4 p. : digital, PDF file. |