TY - JOUR
T1 - Contribution to the study of phase interactions and morphology in YBCO/Ag melt-processed composites
AU - Costa, G. A.
AU - Mele, P.
PY - 2002/8/1
Y1 - 2002/8/1
N2 - The Y-Ba-Cu-O/Ag equilibrium diagram in oxygen atmosphere was studied. A high thermal effect was found when the silver concentration was increased to 35 wt.%. The peritectic decomposition temperature of the Y-123 phase is lowered from 1040 to 940 °C. The nature of the phenomenon is not due to a chemical reaction between silver and any phase of the Y-Ba-Cu-O system. It is explained as the result of a segregation of the Y-123 liquid decomposition products (BaCuO2 + CuO) from the Y-123 phase, performed by silver.
AB - The Y-Ba-Cu-O/Ag equilibrium diagram in oxygen atmosphere was studied. A high thermal effect was found when the silver concentration was increased to 35 wt.%. The peritectic decomposition temperature of the Y-123 phase is lowered from 1040 to 940 °C. The nature of the phenomenon is not due to a chemical reaction between silver and any phase of the Y-Ba-Cu-O system. It is explained as the result of a segregation of the Y-123 liquid decomposition products (BaCuO2 + CuO) from the Y-123 phase, performed by silver.
KW - Ag additions
KW - Melt-textured YBCO
KW - Y-Ba-Cu-O equilibrium diagram
UR - http://www.scopus.com/inward/record.url?scp=0036683003&partnerID=8YFLogxK
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U2 - 10.1016/S0921-4534(02)00888-2
DO - 10.1016/S0921-4534(02)00888-2
M3 - Article
AN - SCOPUS:0036683003
SN - 0921-4534
VL - 372-376
SP - 1174
EP - 1178
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
IS - PART 2
ER -