Mechanochemical synthesis of Nd2Fe14B alloy with high coercivity

Journal Article · Wed Dec 05 00:00:00 EST 2012 · Journal of Alloys and Compounds

DOI:https://doi.org/10.1016/j.jallcom.2012.07.114· OSTI ID:1211053

Pal, A; Gabay, A; Hadjipanayis, GC

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.

• Sponsoring Organization: USDOE Advanced Research Projects Agency - Energy (ARPA-E)
• OSTI ID: 1211053
• Journal Information: Journal of Alloys and Compounds, Vol. 543; ISSN 0925-8388
• Country of Publication: United States
• Language: English