1. Magneto-Optical study the quality YBCO tapes from Super Power
MO indicator M Cu
Substrate
YBCO Ag H

2. Tape M3-674-FS, t=1.77mm 13 Oct 2009
Tape axis
#41-42 T=77K H=0 (FC in H=120 mT)
No anisotropy

3. 4 mm tape M3-501-FS (SP-17)
30%
#23-26 ZFC T=13K H=120 mT
#31-37 FC T=13K (H=120 mT)

4. SCS (from MP)
surround copper stabilizer
12mm
M (from DCL) M “TURBO”
M3-407
M3-501 FS
(SP-17)
4mm
M MS
BZO-containing
M3-674 FS
Polak:Transport on L and T. Cu etched, FIB, YBSO:defect lines visible in Optic, SEM on defects
Polak:Transport on L and T. Ag etched, YBSO:defect lines not visible in Optic
Only MO done
Only MO done
Cu, Ag etched, YBSO:defect lines visible in Optic, SEM and FIB on defects
4mm width
Only MO done: perfect tape
Rolling Direction

5. M3-513
4mm
M3-515-FS
M3-522-FS (SP-18)
M3-549-BS (SP-14)
Only MO done: perfect tape
Only MO done: perfect tape
Only MO done: perfect tape
Only MO done: defect
Rolling Direction