The production and characterization of bonded, hot-pressed and die-upset HDDR magnets
β Scribed by McGuiness, P.J.; Short, C.; Wilson, A.F.; Harris, I.R.
- Book ID
- 123254046
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 984 KB
- Volume
- 184
- Category
- Article
- ISSN
- 0925-8388
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Transmission electron microscopy was used to establish densification, alignment, and magnetization reversal mechanisms in hot-pressed and die-upset NdFeB magnets. Microstructures of these materials reveal two principal phases: Nd 2 Fe l4 B grains and a grain boundary phase of approximate composition
Preparation of Anisotropic NdFeB Magnets with Different Nd Contents by Hot Deformation (Die-Upsetting) Using Hot-Pressed HDDR Powders (HDDR: Hydrogenation-Disproportionation-Desorption-Recombination). -Three alloys with compositions Nd 14 Fe 80 B 6 , Nd 16 Fe 78 B 6 , and Nd 18 Fe 76 B 6 are prepar