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Diffusion studies and critical current in superconducting Nb–Ti–Ta artificial pinning center wire
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10.1063/1.1845585
/content/aip/journal/jap/98/4/10.1063/1.1845585
http://aip.metastore.ingenta.com/content/aip/journal/jap/98/4/10.1063/1.1845585
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

SEM∕BSE micrographs of the diffusion couple after heat treatment at for (a) 25, (b) 49, and (c) .

Image of FIG. 2.
FIG. 2.

SEM∕BSE micrographs of the diffusion couple after heat treatment at for (a) 25, (b) 49, and (c) .

Image of FIG. 3.
FIG. 3.

SEM∕BSE micrographs of the diffusion couple after heat treatment at for (a) 25, (b) 49, and (c) .

Image of FIG. 4.
FIG. 4.

SEM∕BSE enlarged image of region (Figs. 1–3) for a couple heat treated at during .

Image of FIG. 5.
FIG. 5.

Diffusion layer concentration profiles of Nb and Ta as a function of the distance starting at the pure Ti side for 25, 49, and at (a) 973, (b) 1023, and (c) .

Image of FIG. 6.
FIG. 6.

Diffusion layer thickness as a function of the heat treatment time at temperatures of 973, 1023, and .

Image of FIG. 7.
FIG. 7.

Nb and Ta concentration (wt %) relative to the original alloy (Nb–20%Ta) vs reduced distance from pure Ti (distance divided by the layer size).

Image of FIG. 8.
FIG. 8.

Critical current density, , vs applied field for the wire with diameter in the as-drawn state and heat treated at 973, 1023, and for .

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/content/aip/journal/jap/98/4/10.1063/1.1845585
2005-08-24
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Diffusion studies and critical current in superconducting Nb–Ti–Ta artificial pinning center wire
http://aip.metastore.ingenta.com/content/aip/journal/jap/98/4/10.1063/1.1845585
10.1063/1.1845585
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