High Performance PrFeB Permanent Magnets through Novel Pulse Alignment and Compaction Method for Cryogenic Permanent Magnet Undulators (CPMU)
- IAP Research Inc., Dayton, OH (United States)
The Phase I feasibility results of processing PrFeB magnets have shown highly promising magnetic property results with the potential to equal or exceed the best PrFeB properties reported. These findings will be advanced in Phase II through composition tuning, optimization of powder alignment from 95% to > 98%, sintering and heat treat adjustments. The objectives of Phase I were successfully achieved during Phase I work. These were to produce PrFeB magnets and test to establish a baseline process including material chemistry, alloy milling to 3 microns, compaction with domain alignment, and liquid Phase sintering and annealing – under both thermal and vacuum cycles. Success of proper chemistry and processing is determined by the finished magnet density and magnetic performance. A density of 7.45 +/-0.03 g/cm3 has been established as demonstrating full density.
- Research Organization:
- IAP Research Inc., Dayton, OH (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- SC0007656
- OSTI ID:
- 1428153
- Report Number(s):
- DOE-IAP-07656
- Country of Publication:
- United States
- Language:
- English
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