Metallurgical Processes in Multi-Component Rare Earth-Transition Metal Permanent Magnet Alloys
Author | : Alden E. Ray |
Publisher | : |
Total Pages | : 8 |
Release | : 1990 |
ISBN-10 | : OCLC:227758323 |
ISBN-13 | : |
Rating | : 4/5 (23 Downloads) |
Book excerpt: The primary objective of this research has been to improve and extend the technology of 2:17 type permanent magnets. The research has proceeded by employing a model for the complex metallurgical behavior of these alloys. During the three year period of this research, we have succeeded in establishing a record value (BH)max=34 MGOe for energy product in uncompensated Sm(CouFevCuxZry)z magnets. This was achieved by increasing the Fe content to v=0.31-0.33 (28-30 at.%) while developing heat treatments to maintain the coercivity at high levels. Keywords: Permanent magnets; Rare earth-transition metal permanent magnets; R2:TM17 type rare earth magnets; Sm(Gd), Co, Fe, Cu, Zr alloys, Model for metallurgical behavior. (jes).