Abstract
Our previous studies indicate that small additions of nano-scaleRE2BaCuO5 (RE211, RE: rare elements) form nano-sized compositional fluctuations during themelt-growth process and thus act as field induced pinning centres. The solubility,peritectic temperature, and atomic size of these nmRE211 additives alter theJc–H performance. To further reveal the effect of size and amount of RE211 additives, in this study,Y2Ba1Cu1O5 (Y211) particles of two different sizes, micro-scale(µm) and nano-scale (nm), were used. The superconducting results indicate that the contribution ofJc in high field regions is larger in nmY211 thanµmY 211. The microstructureresults imply that µmY 211 particles tend to form Y-rich regions in the core shell, while nmY211 particles tend toproduce regions with Y fluctuations and high defect density. These different results areattributed to the reactions between the Y211 additions and the 123 matrix during themelt-textured growth process.
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.
