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

Abstract

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.

Authors:
 [1]
  1. Department of Mechanical Science and Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016 (Japan)
Publication Date:
OSTI Identifier:
20788107
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 99; Journal Issue: 8; Other Information: DOI: 10.1063/1.2172907; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Saito, Tetsuji. Magnetic properties of Nd-Fe-Ti-C-B nanocomposite magnets produced by spark plasma sintering method. United States: N. p., 2006. Web. doi:10.1063/1.2172907.
Saito, Tetsuji. Magnetic properties of Nd-Fe-Ti-C-B nanocomposite magnets produced by spark plasma sintering method. United States. doi:10.1063/1.2172907.
Saito, Tetsuji. Sat . "Magnetic properties of Nd-Fe-Ti-C-B nanocomposite magnets produced by spark plasma sintering method". United States. doi:10.1063/1.2172907.
@article{osti_20788107,
title = {Magnetic properties of Nd-Fe-Ti-C-B nanocomposite magnets produced by spark plasma sintering method},
author = {Saito, Tetsuji},
abstractNote = {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.},
doi = {10.1063/1.2172907},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 8,
volume = 99,
place = {United States},
year = {2006},
month = {4}
}