Ceramic Superconducting Magnetic Bearings

该项目的目标是用高温陶瓷超导体制造无摩擦轴承，工作温度在77K以上。磁通密度约为1特斯拉的稀土磁体将用于提供约0.1兆帕(1巴)的悬浮压力。将尝试3,000到10,000 RPM的旋转速度，但也可能达到100,000 RPM。这项研究将包括几项任务。重点介绍了用超塑性烧结锻造法制备铜酸钇超导陶瓷壳体及冷却系统的设计与实现。

The objective of this project is to fabricate a frictionless bearing from High Tc ceramic superconductors which would operate above 77 K. Rare earth magnets with a magnetic flux density of approximately 1 Tesla will be used to provide levitation pressures of approximately 0.1 MPa (1 bar). Rotation speeds of 3,000 to 10,000 RPM will be attempted, although speeds upto 100,000 RPM may be possible. The research will include several tasks. The important ones being the processing of the ceramic housing from yttrium barium cuprate superconducting ceramic by the superplastic sinter-forging method, and the design and implementation of the cooling system.