Abstract
We studied the mechanism of (RE)Ba2Cu3Oy phase formation via (RE)2BaO4 in the case of GdBa2Cu3Oy + 40 mol% Gd-211 combination, using mixture of Gd2BaO4, BaCuO2 and CuO. Pellets of this composite were sintered at various temperatures between 700 °C and 1100 °C and held for 1 h in Ar (100%), Ar-1% O2, Ar-0.1% O2 atmospheres, then rapidly quenched in oil. The samples were characterized by XRD, SEM, and EPMA analyses. XRD and EPMA analyses indicated that Gd-123 phase forms at around 900 °C but the temperature depends on the chosen atmosphere. The samples quenched from high temperatures (>1000 °C) showed that final formation of a secondary phase depends on the temperature held before the quench.
| Original language | English |
|---|---|
| Pages (from-to) | 282-285 |
| Number of pages | 4 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 445-448 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 2006 Oct 1 |
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Keywords
- Electron probe micro analysis
- GdBaO
- Microstructure
- Quench experiments
- XRD
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
RE-Ba2Cu3Oy formation mechanism via (RE)2BaO4. / Miryala, Muralidhar; Sakai, Naomichi; Murakami, Masato; Hirabayashi, I.; Tanaka, S.
In: Physica C: Superconductivity and its Applications, Vol. 445-448, No. 1-2, 01.10.2006, p. 282-285.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - RE-Ba2Cu3Oy formation mechanism via (RE)2BaO4
AU - Miryala, Muralidhar
AU - Sakai, Naomichi
AU - Murakami, Masato
AU - Hirabayashi, I.
AU - Tanaka, S.
PY - 2006/10/1
Y1 - 2006/10/1
N2 - We studied the mechanism of (RE)Ba2Cu3Oy phase formation via (RE)2BaO4 in the case of GdBa2Cu3Oy + 40 mol% Gd-211 combination, using mixture of Gd2BaO4, BaCuO2 and CuO. Pellets of this composite were sintered at various temperatures between 700 °C and 1100 °C and held for 1 h in Ar (100%), Ar-1% O2, Ar-0.1% O2 atmospheres, then rapidly quenched in oil. The samples were characterized by XRD, SEM, and EPMA analyses. XRD and EPMA analyses indicated that Gd-123 phase forms at around 900 °C but the temperature depends on the chosen atmosphere. The samples quenched from high temperatures (>1000 °C) showed that final formation of a secondary phase depends on the temperature held before the quench.
AB - We studied the mechanism of (RE)Ba2Cu3Oy phase formation via (RE)2BaO4 in the case of GdBa2Cu3Oy + 40 mol% Gd-211 combination, using mixture of Gd2BaO4, BaCuO2 and CuO. Pellets of this composite were sintered at various temperatures between 700 °C and 1100 °C and held for 1 h in Ar (100%), Ar-1% O2, Ar-0.1% O2 atmospheres, then rapidly quenched in oil. The samples were characterized by XRD, SEM, and EPMA analyses. XRD and EPMA analyses indicated that Gd-123 phase forms at around 900 °C but the temperature depends on the chosen atmosphere. The samples quenched from high temperatures (>1000 °C) showed that final formation of a secondary phase depends on the temperature held before the quench.
KW - Electron probe micro analysis
KW - GdBaO
KW - Microstructure
KW - Quench experiments
KW - XRD
UR - http://www.scopus.com/inward/record.url?scp=33748208712&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33748208712&partnerID=8YFLogxK
U2 - 10.1016/j.physc.2006.06.035
DO - 10.1016/j.physc.2006.06.035
M3 - Article
VL - 445-448
SP - 282
EP - 285
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 1-2
ER -