Hybrid Nanocrystalline Permanent Magnets for Beam Focusing in High Energy Accelerators
In this DoE 2004 STTR Phase I research project, bulk hybrid nanograin Nd2Fe14B/Sm2(Co,Fe)17 magnets with MHc = 14.2 kOe and (BH)max = 27.3 MGOe were successfully synthesized. In addition, bulk nanograin PrCo5 magnets with MHc over 15 kOe and bulk hybrid anisotropic nanocomposite Pr2(Fe,Co)14B/Pr(Co,Fe)5 and Pr2(Fe,Co)14B/Pr2(Co,Fe)17 magnets with (BH)max of 28 to 35 MGOe were synthesized. These efforts were guided by the novel model of coercivity mechanism in nanograin magnetic materials and through the use of the innovative rapid RF inductive hot compaction process. With further R&D, a new class of permanent magnets that have the same level of magnetic performance as the mainstream sintered Nd-Fe-B magnets with (BH)max = 35 to 45 MGOe and much improved thermal stability will be developed.
- Research Organization:
- FutureTek Corp. USA
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- FG02-04ER86185
- OSTI ID:
- 841460
- Country of Publication:
- United States
- Language:
- English
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