Superconducting and structural properties of plasma sprayed Y-Ba-Cu-O layers deposited on metallic substrates

H. Hemmes; D. Jäger; M. Smithers; J. van der Veer; D. Stöver; H. Rogalla

doi:10.1016/0011-2275(93)90050-X

Superconducting and structural properties of plasma sprayed Y-Ba-Cu-O layers deposited on metallic substrates

H. Hemmes, D. Jäger, M. Smithers, J. van der Veer, D. Stöver, H. Rogalla

Faculty of Science and Technology

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Abstract

The properties of plasma sprayed Y-Ba-Cu-O coatings deposited on metallic substrates are studied. Stainless steel, nickel steels and pure nickel are used as substrate. Y-Ba-Cu-O deposited on stainless steel and nickel steel reacts with the substrate. This interaction can be suppressed by using an yttria-stabilized zirconia (YsZ) diffusion barrier. However, after heat treatment the Y-Ba-Cu-O layers on YsZ show cracks perpendicular to the surface. As a result the critical current density is very low. The best results are obtained for Y-Ba-Cu-O deposited on pure nickel; here no cracks perpendicular to the surface are observed. The critical current increases with the anneal temperature but annealing for longer than 10 h does not seem to improve the superconducting properties any further.

Original language	English
Pages (from-to)	302-307
Number of pages	6
Journal	Cryogenics
Volume	33
Issue number	3
DOIs	https://doi.org/10.1016/0011-2275(93)90050-X
Publication status	Published - 1993

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title = "Superconducting and structural properties of plasma sprayed Y-Ba-Cu-O layers deposited on metallic substrates",

abstract = "The properties of plasma sprayed Y-Ba-Cu-O coatings deposited on metallic substrates are studied. Stainless steel, nickel steels and pure nickel are used as substrate. Y-Ba-Cu-O deposited on stainless steel and nickel steel reacts with the substrate. This interaction can be suppressed by using an yttria-stabilized zirconia (YsZ) diffusion barrier. However, after heat treatment the Y-Ba-Cu-O layers on YsZ show cracks perpendicular to the surface. As a result the critical current density is very low. The best results are obtained for Y-Ba-Cu-O deposited on pure nickel; here no cracks perpendicular to the surface are observed. The critical current increases with the anneal temperature but annealing for longer than 10 h does not seem to improve the superconducting properties any further.",

author = "H. Hemmes and D. J{\"a}ger and M. Smithers and {van der Veer}, J. and D. St{\"o}ver and H. Rogalla",

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T1 - Superconducting and structural properties of plasma sprayed Y-Ba-Cu-O layers deposited on metallic substrates

AU - Hemmes, H.

AU - Jäger, D.

AU - Smithers, M.

AU - van der Veer, J.

AU - Stöver, D.

AU - Rogalla, H.

PY - 1993

Y1 - 1993

N2 - The properties of plasma sprayed Y-Ba-Cu-O coatings deposited on metallic substrates are studied. Stainless steel, nickel steels and pure nickel are used as substrate. Y-Ba-Cu-O deposited on stainless steel and nickel steel reacts with the substrate. This interaction can be suppressed by using an yttria-stabilized zirconia (YsZ) diffusion barrier. However, after heat treatment the Y-Ba-Cu-O layers on YsZ show cracks perpendicular to the surface. As a result the critical current density is very low. The best results are obtained for Y-Ba-Cu-O deposited on pure nickel; here no cracks perpendicular to the surface are observed. The critical current increases with the anneal temperature but annealing for longer than 10 h does not seem to improve the superconducting properties any further.

AB - The properties of plasma sprayed Y-Ba-Cu-O coatings deposited on metallic substrates are studied. Stainless steel, nickel steels and pure nickel are used as substrate. Y-Ba-Cu-O deposited on stainless steel and nickel steel reacts with the substrate. This interaction can be suppressed by using an yttria-stabilized zirconia (YsZ) diffusion barrier. However, after heat treatment the Y-Ba-Cu-O layers on YsZ show cracks perpendicular to the surface. As a result the critical current density is very low. The best results are obtained for Y-Ba-Cu-O deposited on pure nickel; here no cracks perpendicular to the surface are observed. The critical current increases with the anneal temperature but annealing for longer than 10 h does not seem to improve the superconducting properties any further.

U2 - 10.1016/0011-2275(93)90050-X

DO - 10.1016/0011-2275(93)90050-X

M3 - Article

SN - 0011-2275

VL - 33

SP - 302

EP - 307

JO - Cryogenics

JF - Cryogenics

IS - 3

ER -

Superconducting and structural properties of plasma sprayed Y-Ba-Cu-O layers deposited on metallic substrates

Abstract

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