Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 543, Issue -, Pages 31-33Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2012.07.114
Keywords
Permanent magnets; Mechanochemical processing; Magentisation; Magnetic measurements; SEM; X-ray diffraction
Categories
Funding
- DOE ARPA-E
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High coercivity nanocrystalline Nd2Fe14B particles were synthesized by mechanochemical processing involving the reduction of Nd2O3 with Ca in presence of Fe-B and Fe. The as-milled powder shows amorphous structure and subsequent heat treatment results in formation of nanocrystalline Nd2Fe14B. The resulting powder does not only consist of Nd2Fe14B but also some Nd-rich phase. The optimally heat treated sample exhibits coercivity of more than 12 kOe. (C) 2012 Elsevier B.V. All rights reserved.
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