Recent Progress in 2G HTS Wires at SuperPower

Kilometer lengths of fully buffered tape with
excellent & uniform in-plane texture produced
10
9
Next target : Kilometer lengths !
In-plane texture (degrees)
8
7
6
5
4
3
2
1
0
0
100
200
300
400
500
Several tapes with complete 5-layer
buffer stack produced in lengths of
approximately 1,300 m with in-plane
texture of 6 – 7 degrees and excellent
uniformity of ~ 2%.
600
ISS 2007 –17–
700
800
Position (m)
900
1,000
1,100
Tape 1
Tape 2
Tape 3
Tape 4
Tape 5
Tape 6
Tape 7
Tape 8
Tape 9
Tape 10
1,200
1,300
1,400
20μm Cu
20μm Cu
Ag
50μm Hastelloy substrate
HTS
LMO
Homo-epi MgO
IBAD MgO
Tape Length In-plane texture (°) Uniformity
(m) Average Min Max
1 1,001 6.79 6.20 7.84 6.2%
2 1,343 6.33 5.80 7.16 3.3%
3 1,346 6.85 6.00 7.35 2.1%
4 1,372 6.20 5.83 6.68 2.2%
5 1,375 6.58 6.23 7.14 2.5%
6 1,277 6.59 5.80 7.09 2.1%
7 1,346 7.09 6.66 7.79 2.9%
8 1,265 6.81 6.30 7.12 1.7%
9 1,246 6.33 5.47 7.13 2.4%
10 1,369 6.18 5.95 6.26 1.2%