Low friction in high temperature superconductor bearings
- 26 August 1991
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 59 (9) , 1132-1134
- https://doi.org/10.1063/1.106367
Abstract
A study of drag in rotating permanent magnet/high temperature superconductor magnetic bearings is reported. The effects of magnet asymmetry, atmospheric resistance, and eddy currents are discussed. One of the bearings achieved a rotational speed of 200 000 RPM and a low speed coefficient of friction of 8.1×10−6, values that have technological significance for flywheel energy storage.Keywords
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