TY - JOUR
A2 - Awana, Veer P. S.
AU - Venkataswamy, Ashoka Nukkanahalli
AU - Chirayil, George Thomas
AU - Kannaiyan, Srinivasan
PY - 2014
DA - 2014/09/15
TI - Investigation of Structural Formation of Starting Composition 2245 in the Bi-Pb-Sr-Ca-Cu-O System Superconductors
SP - 716032
VL - 2014
AB - Structural formation of Bi1.65Pb0.35Sr2Ca4Cu5Oy (2245 phase) superconducting compound was investigated by preparing the sample in a new matrix route. The phases formed at different intervals of heat treatment are monitored by X-ray diffraction studies. Bi-2212 phase was found to be the predominant phase till 20 hours of sintering at 850°C after which Bi-2223 phase was found to be the major phase. Traces of Ca2PbO4 were also noticed along with 2212 and 2223 phases. For the first time, the highest TC onset of 127 K with maximum superconducting volume fraction was observed for the sample sintered at 850°C for 30 hours in this preparation. Further sintering is found to deteriorate the TC onset value of the sample. There was no signature of the formation of 2234 or 2245 phase in this synthesis.
SN - 2356-7643
UR - https://doi.org/10.1155/2014/716032
DO - 10.1155/2014/716032
JF - Journal of Solid State Physics
PB - Hindawi Publishing Corporation
KW -
ER -