Modeling voltage distribution and current limit in Ag/Bi2Sr2Can-1CunO2n+4

Y. Fang; S. Danyluk; Y. S. Cha; Michael T. Lanagan

doi:10.1063/1.362694

Modeling voltage distribution and current limit in Ag/Bi₂Sr₂Ca_n-1Cu_nO_2n+4

Y. Fang, S. Danyluk, Y. S. Cha, Michael T. Lanagan

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20 Citations (SciVal)

Abstract

Current and voltage distributions in Ag/Bi₂Sr₂Ca_n-1Cu_nO_2n+4 (BSCCO) composites are calculated from an analytical model that is based on interfacial resistivity and geometric parameters. The model was verified by measuring the voltage distribution along Ag/Bi₂Sr₂Ca₂Cu₃O₁₀ bars that were fabricated by sinter forging between 400-845 °C and 5-10 MPa. The results show that the solutions depend on a single dimensionless parameter, λL, where L is the length of the interface and λ is associated with resistivity of the Ag (ρ_s), interfacial resistivity (ρ_i) between the Ag and the BSCCO, and thickness of the Ag (d_s). The voltage drop across the interface is proportional to (ρ_iρ_s/d_s)^1/2. The model was extended for powder-in-tube tapes to examine the effects of cracking on critical current density.

Original language	English (US)
Pages (from-to)	947-952
Number of pages	6
Journal	Journal of Applied Physics
Volume	79
Issue number	2
DOIs	https://doi.org/10.1063/1.362694
State	Published - Jan 15 1996

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1063/1.362694

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abstract = "Current and voltage distributions in Ag/Bi2Sr2Can-1CunO2n+4 (BSCCO) composites are calculated from an analytical model that is based on interfacial resistivity and geometric parameters. The model was verified by measuring the voltage distribution along Ag/Bi2Sr2Ca2Cu3O10 bars that were fabricated by sinter forging between 400-845 °C and 5-10 MPa. The results show that the solutions depend on a single dimensionless parameter, λL, where L is the length of the interface and λ is associated with resistivity of the Ag (ρs), interfacial resistivity (ρi) between the Ag and the BSCCO, and thickness of the Ag (ds). The voltage drop across the interface is proportional to (ρiρs/ds)1/2. The model was extended for powder-in-tube tapes to examine the effects of cracking on critical current density.",

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AU - Fang, Y.

AU - Danyluk, S.

AU - Cha, Y. S.

AU - Lanagan, Michael T.

PY - 1996/1/15

Y1 - 1996/1/15

N2 - Current and voltage distributions in Ag/Bi2Sr2Can-1CunO2n+4 (BSCCO) composites are calculated from an analytical model that is based on interfacial resistivity and geometric parameters. The model was verified by measuring the voltage distribution along Ag/Bi2Sr2Ca2Cu3O10 bars that were fabricated by sinter forging between 400-845 °C and 5-10 MPa. The results show that the solutions depend on a single dimensionless parameter, λL, where L is the length of the interface and λ is associated with resistivity of the Ag (ρs), interfacial resistivity (ρi) between the Ag and the BSCCO, and thickness of the Ag (ds). The voltage drop across the interface is proportional to (ρiρs/ds)1/2. The model was extended for powder-in-tube tapes to examine the effects of cracking on critical current density.

AB - Current and voltage distributions in Ag/Bi2Sr2Can-1CunO2n+4 (BSCCO) composites are calculated from an analytical model that is based on interfacial resistivity and geometric parameters. The model was verified by measuring the voltage distribution along Ag/Bi2Sr2Ca2Cu3O10 bars that were fabricated by sinter forging between 400-845 °C and 5-10 MPa. The results show that the solutions depend on a single dimensionless parameter, λL, where L is the length of the interface and λ is associated with resistivity of the Ag (ρs), interfacial resistivity (ρi) between the Ag and the BSCCO, and thickness of the Ag (ds). The voltage drop across the interface is proportional to (ρiρs/ds)1/2. The model was extended for powder-in-tube tapes to examine the effects of cracking on critical current density.

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Modeling voltage distribution and current limit in Ag/Bi₂Sr₂Ca_n-1Cu_nO_2n+4

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