Abstract
Use of a so-called two-powder process results in rapid formation of a highly pure superconducting bismuth-2223 phase during powder-in-tube processing. In this process, SrχCa1-χCuO2 and Bi1.8Pb0.4Sr2-χCa1+χCu2O8 are formed as separate intermediate phases, and mixed, then processed together within a silver sheath. Mixtures with χ values of 0.0, 0.25, 0.50, 0.75, and 1.0 are studied in order to probe the relationship between 2223 formation and the melting behavior of 2212. The best results to date have been obtained with the χ=0.0 mixture containing high-melting, strontium-rich 2212 and calcium cuprate. The process is very reproducible and produces nearly pure 2223 in as little as 50 h.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 66-74 |
| Number of pages | 9 |
| Journal | Physica C: Superconductivity and its applications |
| Volume | 212 |
| Issue number | 1-2 |
| DOIs | |
| State | Published - Jul 1 1993 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
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Synthesis of highly pure bismuth-2223 by a two-powder process. / Dorris, S. E.; Prorok, B. C.; Lanagan, Michael T.; Sinha, S.; Poeppel, R. B.
In: Physica C: Superconductivity and its applications, Vol. 212, No. 1-2, 01.07.1993, p. 66-74.Research output: Contribution to journal › Article
TY - JOUR
T1 - Synthesis of highly pure bismuth-2223 by a two-powder process
AU - Dorris, S. E.
AU - Prorok, B. C.
AU - Lanagan, Michael T.
AU - Sinha, S.
AU - Poeppel, R. B.
PY - 1993/7/1
Y1 - 1993/7/1
N2 - Use of a so-called two-powder process results in rapid formation of a highly pure superconducting bismuth-2223 phase during powder-in-tube processing. In this process, SrχCa1-χCuO2 and Bi1.8Pb0.4Sr2-χCa1+χCu2O8 are formed as separate intermediate phases, and mixed, then processed together within a silver sheath. Mixtures with χ values of 0.0, 0.25, 0.50, 0.75, and 1.0 are studied in order to probe the relationship between 2223 formation and the melting behavior of 2212. The best results to date have been obtained with the χ=0.0 mixture containing high-melting, strontium-rich 2212 and calcium cuprate. The process is very reproducible and produces nearly pure 2223 in as little as 50 h.
AB - Use of a so-called two-powder process results in rapid formation of a highly pure superconducting bismuth-2223 phase during powder-in-tube processing. In this process, SrχCa1-χCuO2 and Bi1.8Pb0.4Sr2-χCa1+χCu2O8 are formed as separate intermediate phases, and mixed, then processed together within a silver sheath. Mixtures with χ values of 0.0, 0.25, 0.50, 0.75, and 1.0 are studied in order to probe the relationship between 2223 formation and the melting behavior of 2212. The best results to date have been obtained with the χ=0.0 mixture containing high-melting, strontium-rich 2212 and calcium cuprate. The process is very reproducible and produces nearly pure 2223 in as little as 50 h.
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U2 - 10.1016/0921-4534(93)90486-A
DO - 10.1016/0921-4534(93)90486-A
M3 - Article
VL - 212
SP - 66
EP - 74
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 1-2
ER -