| Autor: |
Sawatzki, Simon, Dirks, Almut, Frincu, Bianca, Löwe, Konrad, Gutfleisch, Oliver |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 2014, Vol. 115 Issue 17, p17A705-1-17A705-3, 3p, 1 Black and White Photograph, 1 Diagram, 1 Chart, 2 Graphs |
| Abstrakt: |
Nd-Fe-B melt-spun ribbons with optimized composition for hot workability have been hotcompacted together with low melting DyCu, DyNiAl, NdCu, and NdAl powders to enhance coercivity. Annealing at 600 °C leads to an interdiffusion of Dy and Nd at the interfaces between the Nd-Fe-B flakes and the Dy-rich phase. This modifies the grain boundary phase and thus further enhances coercivity without decreasing remanence. The higher coercivity for DyCu compared to DyNiAl was attributed to the lower melting point obtained by differential scanning calorimetry. For NdCu and NdAl, annealing was found to be ineffective. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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