Magnetic properties of Nd-Fe-Ti-C-B nanocomposite magnets produced by spark plasma sintering method

Journal Article · Sat Apr 15 00:00:00 EDT 2006 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.2172907· OSTI ID:20788107

Saito, Tetsuji ^[1]

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1. Department of Mechanical Science and Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016 (Japan)

Amorphous melt-spun ribbons of a Nd{sub 9}Fe{sub 73}Ti{sub 4}C{sub 1}B{sub 13} alloy were consolidated into bulk materials by the spark plasma sintering method. The resultant bulk material was amorphous when the ribbons were consolidated at 773 K. The amorphous bulk material showed a low coercivity, as would be expected for amorphous Nd-Fe-B materials. On the other hand, the bulk materials produced at 873 K and above consisted of {alpha}-Fe and Nd{sub 2}Fe{sub 14}B phases. The resultant nanocomposite magnets showed high coercivity values exceeding 10 kOe. The bulk material produced at 973 K showed a high remanence of 8.4 kG with a maximum energy product of 13.8 MG Oe.

• OSTI ID: 20788107
• Journal Information: Journal of Applied Physics, Vol. 99, Issue 8; Other Information: DOI: 10.1063/1.2172907; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BORON ALLOYS
CARBON
COERCIVE FORCE
COMPOSITE MATERIALS
IRON ALLOYS
IRON-ALPHA
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MAGNETS
NANOSTRUCTURES
NEODYMIUM ALLOYS
PLASMA
SINTERING
TITANIUM ALLOYS