TY - JOUR
T1 - The influence of BaO2 additions on microstructure and superconducting properties of Bi2Sr2CaCu2O8+δ
AU - Trociewitz, U. P.
AU - Sahm, P. R.
AU - Koritala, R. E.
AU - Brandao, L.
AU - Bacaltchuk, C.
AU - Schwartz, J.
N1 - Funding Information:
The authors like to thank Robert Goddard and Ilkay Cubukcu for their valuable help. This project has been supported in part by funding from the NSF under contract DMR9527035 and also in part (R.E. Koritala) by funding from the US Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy, as part of a DOE program to develop electric power technology, under contract W-31-109-Eng-38.
PY - 2002/1/1
Y1 - 2002/1/1
N2 - The effects of Ba additions on the compositional, microstructural, and magnetization properties of Bi2Sr2CaCu2O8+δ (Bi-2212) superconductors have been investigated. BaO2 reacts with the Bi-2212 matrix to form second phase precipitates. SEM micrographs, pole figure analyses, and improved transport properties in self-field and high fields up to 17 T suggest significant influence on the development of texture in Bi-2212 due an addition of BaO2. Magnetization measurements revealed that the pinning properties of optimally BaO2-added Bi-2212 were not affected. To estimate the potential of BaO2 additions to assist the formation of potential pinning sites, TEM investigations were carried out. The achieved results are presented and discussed. Published by Elsevier Science B.V.
AB - The effects of Ba additions on the compositional, microstructural, and magnetization properties of Bi2Sr2CaCu2O8+δ (Bi-2212) superconductors have been investigated. BaO2 reacts with the Bi-2212 matrix to form second phase precipitates. SEM micrographs, pole figure analyses, and improved transport properties in self-field and high fields up to 17 T suggest significant influence on the development of texture in Bi-2212 due an addition of BaO2. Magnetization measurements revealed that the pinning properties of optimally BaO2-added Bi-2212 were not affected. To estimate the potential of BaO2 additions to assist the formation of potential pinning sites, TEM investigations were carried out. The achieved results are presented and discussed. Published by Elsevier Science B.V.
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U2 - 10.1016/S0921-4534(01)00786-9
DO - 10.1016/S0921-4534(01)00786-9
M3 - Article
AN - SCOPUS:0036131895
SN - 0921-4534
VL - 366
SP - 80
EP - 92
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
IS - 2
ER -