HeaT Transfer and Oxygen Diffusion in Ag-Clad BSCCO superconducting tapes

Patrick Phelan; Rahul N. Samant

doi:10.1109/77.785047

HeaT Transfer and Oxygen Diffusion in Ag-Clad BSCCO superconducting tapes

Patrick Phelan, Rahul N. Samant

Mechanical and Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The quality of Ag-clad BSCCO superconducting tapes is a function of their processing conditions. Two important processing parameters are the cooling rate from the annealing condition, and the oxygen partial pressure in the furnace. Although a link between oxygen content and critical current density has been established, apparently no attempts have been made to predict the temperature and oxygen content distributions within a Ag-clad BSSCO tape. This study presents a combined thermal and mass transfer model which enables the calculation of the oxygen content distribution, and the results indicate a slow cooling rate, and relatively high oxygen partial pressure, lead to a greater and more uniform oxygen concentration within the tape, and thus potentially superior superconducting properties.

Original language	English (US)
Pages (from-to)	2718-2721
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	9
Issue number	2 PART 2
DOIs	https://doi.org/10.1109/77.785047
State	Published - 1999

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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title = "HeaT Transfer and Oxygen Diffusion in Ag-Clad BSCCO superconducting tapes",

abstract = "The quality of Ag-clad BSCCO superconducting tapes is a function of their processing conditions. Two important processing parameters are the cooling rate from the annealing condition, and the oxygen partial pressure in the furnace. Although a link between oxygen content and critical current density has been established, apparently no attempts have been made to predict the temperature and oxygen content distributions within a Ag-clad BSSCO tape. This study presents a combined thermal and mass transfer model which enables the calculation of the oxygen content distribution, and the results indicate a slow cooling rate, and relatively high oxygen partial pressure, lead to a greater and more uniform oxygen concentration within the tape, and thus potentially superior superconducting properties.",

author = "Patrick Phelan and Samant, {Rahul N.}",

note = "Funding Information: This work was supported in part by the National Science Foundation through a CAREER Award (Grant No. CTS-9696003).",

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AU - Phelan, Patrick

AU - Samant, Rahul N.

N1 - Funding Information: This work was supported in part by the National Science Foundation through a CAREER Award (Grant No. CTS-9696003).

PY - 1999

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N2 - The quality of Ag-clad BSCCO superconducting tapes is a function of their processing conditions. Two important processing parameters are the cooling rate from the annealing condition, and the oxygen partial pressure in the furnace. Although a link between oxygen content and critical current density has been established, apparently no attempts have been made to predict the temperature and oxygen content distributions within a Ag-clad BSSCO tape. This study presents a combined thermal and mass transfer model which enables the calculation of the oxygen content distribution, and the results indicate a slow cooling rate, and relatively high oxygen partial pressure, lead to a greater and more uniform oxygen concentration within the tape, and thus potentially superior superconducting properties.

AB - The quality of Ag-clad BSCCO superconducting tapes is a function of their processing conditions. Two important processing parameters are the cooling rate from the annealing condition, and the oxygen partial pressure in the furnace. Although a link between oxygen content and critical current density has been established, apparently no attempts have been made to predict the temperature and oxygen content distributions within a Ag-clad BSSCO tape. This study presents a combined thermal and mass transfer model which enables the calculation of the oxygen content distribution, and the results indicate a slow cooling rate, and relatively high oxygen partial pressure, lead to a greater and more uniform oxygen concentration within the tape, and thus potentially superior superconducting properties.

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HeaT Transfer and Oxygen Diffusion in Ag-Clad BSCCO superconducting tapes

Abstract

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