Abstract
Magnetic bearings are a prime technology that will lead the next generation of gas turbines into the 21st century. Before magnetic bearings can be utilized, fundamental properties of materials used to fabricate these components must be known at the intended operating temperatures and stress levels found in gas turbine applications. This paper presents results of recent work carried out on the development of a radial magnetic bearing for a high temperature gas turbine application. Mechanical and magnetic data on proposed soft magnetic materials intended for use in the magnetic bearing design are presented at both room and operating temperature (550C). The effect which long-term exposure to high temperature has on these properties is included. The use of this data for the development of the radial bearing is explained along with the proposed design of a magnetic bearing.
Published Version
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