Single-domain crack-free CeO2-doped YBCO monoliths synthesized in a conventional box furnace using a
top-seeded-melt-growth process with an optimized time–temperature profile exhibit
trapped magnetic fields of up to 1.4 T and self-field critical current densities at 77 K of up to
1.3 × 105 A cm−2. The observed magnetic properties of the samples correlate with the microstructure, which
was studied using optical and scanning electron microscopy. With these high quality high
temperature superconductor samples a superconducting magnetic bearing for a
2 MW/10 kW h class flywheel energy storage system was designed and has been tested in a
model arrangement.
Theoretical and experimental studies have led to an overall design for superconducting
magnetic bearings (SMB) that is suitable to meet the requirements of industrial
applications. The main benefits are high load capacities, compact dimensions and a ‘warm’
suspended part of the application. Two applications have been designed with a
suspension provided only by SMB; one has already been built and tested successfully.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.