Abstract
Thermal decomposition of freeze-dried nitrate precursors with cation ratio Bi:Pb:Sr:Ca:Cu=1.8:0.4:2:2:3 resulted in formation of the Bi-2212 phase within 10 min of thermal treatment at 860°C. The key features of the process are fast heating rate during decomposition, high chemical homogeneity of precursor, and prevention of melting of the copper nitrate by additional thermal dehydration at 100–120°C. The reactivity of the (Bi,Pb)-2223 precursor obtained this way can be further enhanced by heat treatment at reduced P(O2). Analysis of the processes occurring during this treatment shows that the redistribution of Pb between eutectic mixtures of cuprates and (Bi,Pb)-2212 is a possible reason for reactivity enhancement.
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 callMore From: Journal of Superconductivity: Incorporating Novel Magnetism
Disclaimer: 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.
