Abstract
Superconducting Bi(Pb)‐Sr‐Ca‐Cu‐O powders were prepared by the emulsion‐drying method The powders consisting of the low‐Tc phase (Bi(Pb)2Sr2Ca1Cu2Oy) and small amount of Ca2PbO4 were prepared by calcining under low oxygen partial pressure at 750°, 800°C. These calcined powders were used to prepare thick films on single‐crystal MgO(100) substrates using a screen‐printing technique to study the effect of the calcinations temperature and annealing procedure on the high‐Tc phase (Bi(Pb)2Sr2Ca2Cu3Oy)formation. The formation of high‐Tc phase was observed to be dependent on the calcinations conditions. The high‐Tc phase formed very quickly (sintering at 840°C for 4 h), and the best films showed a sharp superconducting transition at about 105 K.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
