TY - JOUR
T1 - Magneto-optical and microstructural investigations on KClO3-doped YBCO HTSC
AU - Koblischka-Veneva, Anjela
AU - Koblischka, Michael R.
AU - Murakami, Masato
N1 - Funding Information:
This work is partially supported by NEDO. AV and MRK gratefully acknowledge support from STA (Japanese Science and Technology Agency) during the stay at SRL/ISTEC.
PY - 2001
Y1 - 2001
N2 - The influence of KClO3 addition on the magnetic properties and microstructure of YBCO HTSC materials with nominal composition (A): Y1Ba2-xKxCu3Oy, (B): Y1-0.2xBa2-0.2xKxCu3 Oy, (C): Y1Ba2Cu3.5-xKxOy (x = 0-0.75) were investigated. Magneto-optic imaging of flux distributions was employed to study the grain connectivity in the doped and undoped samples in a direct way. The obtained flux patterns taken at various temperatures reveal that KClO3-doped samples (x = 0.30) exhibit flux distributions being close to those being observed in melt-textured superconductors. This demonstrates that the grain connectivity in the doped samples is considerably improved as compared to pure ones, which is an important issue for the fabrication of coated conductors of YBCO.
AB - The influence of KClO3 addition on the magnetic properties and microstructure of YBCO HTSC materials with nominal composition (A): Y1Ba2-xKxCu3Oy, (B): Y1-0.2xBa2-0.2xKxCu3 Oy, (C): Y1Ba2Cu3.5-xKxOy (x = 0-0.75) were investigated. Magneto-optic imaging of flux distributions was employed to study the grain connectivity in the doped and undoped samples in a direct way. The obtained flux patterns taken at various temperatures reveal that KClO3-doped samples (x = 0.30) exhibit flux distributions being close to those being observed in melt-textured superconductors. This demonstrates that the grain connectivity in the doped samples is considerably improved as compared to pure ones, which is an important issue for the fabrication of coated conductors of YBCO.
KW - Grain boundaries
KW - KClO doping
KW - MO imaging
KW - YBCO HTSC
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U2 - 10.1016/S0921-4534(01)00205-2
DO - 10.1016/S0921-4534(01)00205-2
M3 - Article
AN - SCOPUS:0035424538
VL - 357-360
SP - 201
EP - 204
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
M1 - 11260
ER -