This project defines a demonstration on the advantages of high-Tc superconducting ceramics (HTSC) in applications currently requiring the use of expensive and complex magnetic bearings. Because of their ability simultaneously to expel and trap or pin magnetic flux, HTSCs provide the potential for passive magnetic bearings that are self-stabilizing. The advantages of passive magnetic bearings are reduced stored power or power generation requirements and reduced weight and volume for rotational equipment on a spacecraft. The objective of this work is a prototype magnetic bearing capable of operating at or below liquid nitrogen temperature. It will incorporate bulk HTSC components with flux expulsion and flux pinning properties optimized for a passive bearing; an insulation and refrigeration system to demonstrate operating characteristics and bearing stability over extended periods of time; and design parameters for a Phase II HTSC magnetic bearings.
Potential Commercial Applications: This project will set the foundation for frictionless, noiseless, vibration-free, and non-power consuming bearings for a host of rotating system applications with high and variable loadings.STATUS: Phase I Only
