Ceramic Superconducting Magnetic Bearings

陶瓷超导磁力轴承

• 批准号: 8718490
• 负责人: Rishi Raj
• 金额: $ 5万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-09-01 至 1989-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8718490&HistoricalAwards=false
• 关键词: Ceramic; Superconducting; Magnetic; Bearings

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.

该项目的目标是用高温陶瓷超导体制造无摩擦轴承，该轴承可在 77 K 以上运行。磁通密度约为 1 特斯拉的稀土磁体将用于提供约 0.1 MPa（1 巴）的悬浮压力。 将尝试 3,000 至 10,000 RPM 的旋转速度，但也可能达到 100,000 RPM 的速度。 该研究将包括多项任务。 其中重要的是采用超塑性烧结锻造方法加工钇钡铜酸超导陶瓷陶瓷外壳，以及冷却系统的设计与实现。