Spark plasma sintering of Nd–Fe–B magnetic alloy
- 1 June 1999
- journal article
- Published by Springer Nature in Journal of Materials Research
- Vol. 14 (6) , 2540-2547
- https://doi.org/10.1557/jmr.1999.0340
Abstract
Spark plasma sintering was used to consolidate the crystallized Nd–Fe–B alloy powders. It was found that a higher sintering temperature can improve the consolidation significantly, whereas it deteriorates the magnetic properties drastically due to the appearance of a large amount of α–Fe phase and the grain growth. Sintering at lower temperature can preserve the magnetic properties better, while the powders cannot be consolidated into a fully dense compact, even under the higher pressure of 75 MPa. Finer starting powder particles show similar behavior.Keywords
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