TY - JOUR
T1 - High magnetic field properties of critical current density in Y 1Ba2Cu3O7-δ coated conductor fabricated by improved TFA-MOD process
AU - Inoue, Masayoshi
AU - Kiss, Takanobu
AU - Tsuda, Yuhki
AU - Sawa, Hirotaka
AU - Takeo, Masakatsu
AU - Awaji, Satoshi
AU - Watanabe, Kazuo
AU - Iijima, Yasuhiro
AU - Kakimoto, Kazuomi
AU - Saitoh, Takashi
AU - Matsuda, Junko
AU - Tokunaga, Yoshitaka
AU - Izumi, Teruo
AU - Shiohara, Yuh
N1 - Funding Information:
Manuscript received October 5, 2004. This work was supported in part by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications, and in part by JSPS: KAKENHI under Grant 15360151.
PY - 2005/6
Y1 - 2005/6
N2 - Current transport characteristics in a Y1Ba2Cu 3O7-δ (YBCO) coated conductor fabricated by a trifluoroacetates-metal organic deposition (TFA-MOD) process were investigated over a wide range of temperature and magnetic field up to 25 T. Improved TFA-MOD process was successfully introduced for the better property of critical current density, Jc, at high magnetic fields. The Jc and critical current, Ic, values of multi-coated film with 1.2 μm thickness and 1 cm width were 2.1 MA/cm2 and 251 A at 77 K in self-field. Additionally, the superior Jc properties remained even at high magnetic fields over 20 T and lower temperature, e.g. Jc value at 30 K in 25 T was 1.0 MA/cm2. The Jc value was about 2.5 times higher than those of previous TFA-MOD process at wide range of magnetic field. Moreover, the statistical distribution of Jc in the conductor was also estimated within a framework of the percolation model. The uniformity in the YBCO coated conductor was improved by optimizing the TFA-MOD process.
AB - Current transport characteristics in a Y1Ba2Cu 3O7-δ (YBCO) coated conductor fabricated by a trifluoroacetates-metal organic deposition (TFA-MOD) process were investigated over a wide range of temperature and magnetic field up to 25 T. Improved TFA-MOD process was successfully introduced for the better property of critical current density, Jc, at high magnetic fields. The Jc and critical current, Ic, values of multi-coated film with 1.2 μm thickness and 1 cm width were 2.1 MA/cm2 and 251 A at 77 K in self-field. Additionally, the superior Jc properties remained even at high magnetic fields over 20 T and lower temperature, e.g. Jc value at 30 K in 25 T was 1.0 MA/cm2. The Jc value was about 2.5 times higher than those of previous TFA-MOD process at wide range of magnetic field. Moreover, the statistical distribution of Jc in the conductor was also estimated within a framework of the percolation model. The uniformity in the YBCO coated conductor was improved by optimizing the TFA-MOD process.
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U2 - 10.1109/TASC.2005.847655
DO - 10.1109/TASC.2005.847655
M3 - Article
AN - SCOPUS:22144452877
VL - 15
SP - 2574
EP - 2577
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 2 PART III
ER -