Superconducting and structural properties of plasma sprayed YBaCuO layers deposited on metallic substrates

Hemmes, H. and Jäger, D. and Smithers, M. and Veer van der, J. and Stover, D. and Rogalla, H. (1993) Superconducting and structural properties of plasma sprayed YBaCuO layers deposited on metallic substrates. Cryogenics, 33 (3). pp. 302-307. ISSN 0011-2275

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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.
Item Type:	Article
Copyright:	© 1993 Elsevier Science
Faculty:	Science and Technology (TNW)
Research Group:	Low Temperatures - Biomagnetism (LT)
Link to this item:	http://purl.utwente.nl/publications/23740
Official URL:	http://dx.doi.org/10.1016/0011-2275(93)90050-X
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