TY - JOUR
T1 - Preparation of superconducting YBa2Cu408 by the sol-gel method
AU - Fujihara, S.
AU - Zhuang, H.
AU - Yoko, T.
AU - Kozuka, H.
AU - Sakka, S.
N1 - Funding Information:
The authors thank the Japanese Ministry of Education, Science and Culture for financial support by Grant-in-Aid for Scientific Research New Superconductors (02227104).
PY - 1992/9
Y1 - 1992/9
N2 - Superconducting YBa2Cu408 ceramics were synthesized by the sol-gel method using corresponding metal acetates as starting materials, water as solvent, and tartaric acid under 1 atm oxygen pressure. YBa2Cu408 powder was obtained as a single phase by heating the gel at 780 °C for 30 h in flowing oxygen. Tc was 80 K from magnetic susceptibility measurements. Pelletizing and sintering this powder revealed Tc (onset) of 87 K and Tc (end) of 78 K from resistance measurements. YBa2Cu408 pellets sintered at 780 °C for 30 h in O2 also consist of a single phase with Tc (onset) of 85 K and Tc (end) of 75 K.
AB - Superconducting YBa2Cu408 ceramics were synthesized by the sol-gel method using corresponding metal acetates as starting materials, water as solvent, and tartaric acid under 1 atm oxygen pressure. YBa2Cu408 powder was obtained as a single phase by heating the gel at 780 °C for 30 h in flowing oxygen. Tc was 80 K from magnetic susceptibility measurements. Pelletizing and sintering this powder revealed Tc (onset) of 87 K and Tc (end) of 78 K from resistance measurements. YBa2Cu408 pellets sintered at 780 °C for 30 h in O2 also consist of a single phase with Tc (onset) of 85 K and Tc (end) of 75 K.
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U2 - 10.1557/JMR.1992.2355
DO - 10.1557/JMR.1992.2355
M3 - Article
AN - SCOPUS:0026915995
VL - 7
SP - 2355
EP - 2359
JO - Journal of Materials Research
JF - Journal of Materials Research
SN - 0884-2914
IS - 9
ER -