Artificial pinning centers (APC) for trifluoroacetates-metal organic deposition (TFA-MOD) Y
1-xSm
xBa
2Cu
3O
y (YSmBCO) coated conductors were introduced to enhance
Jc under the magnetic fields and improve the magnetic field angular dependence of
Jc. The coated conductors showed high self-fields
Jc values (
Jcs.f.) of 3.8 MA/cm
2 and a
Jc minimum value of 0.53 MA/cm
2 at 77 K and 1 T. Moreover, the coated conductors have isotropic
Jc-
B-
θ properties with the ratio (
Jc,min/
Jc,max) of 0.91 (77K, B=1 T). From the results of microstructural observation, BaZrO
3 (BZO) nanoparticles were uniformly dispersed in the films by introduction of Zr-salt into the YSmBCO metallic organic solution. The nanoparticles were dispersed uniformly not only along the lateral direction (
B//
ab) but also along the normal direction to the tape (
B//
c). It is believed that the uniform dispersion of BZO nanoparticles in TFA-MOD REBCO coated conductors may act as flux pinning centers to enhance the
Jc independent from the angle of the applied magnetic fields.
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