High Temp High Energy Product Permanent Magnet Material

With the continuing increase of electrical power use in aircraft under the more electric aircraft intiatives, generating electrical power becomes increasingly important to aircraft performance. Generating power requires the use of permanent magnets which are enclosed and operate at increased temperatures. This program will investigate the development of imporved energy product rare earth permanent magnets based on Sm-Co-Zr-Cu, and exchange coupling of nanocrystalline iron inclusions to increase magnetic saturation values. Combinations of innovative powder production technology to improve intrinsic coercivity, and high rate powder molding and compaction technologies will be evaluated in terms of achievable high temperature energy product.