NbTi/Cu matrix composite wire with NbTi in a Cu matrix has provided the foundation for the superconducting magnet industry for thirty years. This wire is low cost, quite robust, and can be manufactured in a wide range of configurations including both round and rectangular, single core and multifilament, Cu:superconductor ratios from 7:1 down to 1:1, and diameters from several mm down to 0.1 mm.
NbTi/Cu matrix wire is useful for magnets up to field strengths of 10 - 11 tesla. The data table shows examples of OST 54 filament wire with a Cu:superconductor ratio of 1.35. A wide range of additional wires is available, please inquire for products that best suit your application.
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Ratings and Technical Data
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Standard 54 Filament Sizes
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|
Matrix |
Copper |
|
Copper : s/c |
1.3 : 1 |
|
RRR of Cu |
>70 |
|
Twist pitch |
42 + 10 mm |
|
Insulation |
Formvar |
|
Final size tolerance |
+ 6 microns |
|
Round |
Rectangular |
|
Dimensions (mm) |
|
bare |
.330 |
.400 |
.500 |
.600 |
.700 |
.750 |
.850 |
|
1.0 x .6 |
1.2 x .75 |
|
|
insulated |
.360 |
.436 |
.538 |
.639 |
.745 |
.795 |
.900 |
|
1.08 x .68 |
1.28 x .83 |
|
|
|
|
Ic at 4.2K (A) |
|
|
3 Tesla |
137 |
194 |
|
|
|
|
|
|
|
|
|
|
4 Tesla |
112 |
167 |
252 |
|
|
|
|
|
|
|
|
|
5 Tesla |
94 |
140 |
213 |
328 |
|
|
|
|
|
|
|
|
6 Tesla |
74 |
113 |
173 |
258 |
349 |
395 |
395 |
|
443 |
|
|
|
7 Tesla |
55 |
86 |
134 |
191 |
260 |
292 |
310 |
|
328 |
510 |
|
|
8 Tesla |
38 |
|
94 |
126 |
176 |
191 |
230 |
|
232 |
362 |
|
|
9 Tesla |
|
|
|
66 |
94 |
98 |
140 |
|
150 |
230 |
|
|
10 Tesla |
|
|
|
|
|
|
52 |
|
|
75 |
|