Magnetic properties of Nd-Fe-B-Zr bulk nanocomposite magnets prepared by spark plasma sintering method

K. Tanaka, T. Fukuzaki, T. Miyasaka, K. Nishimoto, Y. Muro, K. Nishio, R. Tamura

研究成果: Article査読

3 被引用数 (Scopus)

抄録

We have investigated the magnetic properties and the microstructure of Nd8Fe85B5Zr2 bulk nanocomposite magnets consolidated by Spark Plasma Sintering (SPS) method with various sintering temperatures and heating speeds. The volume fractions of a soft magnetic phase (a-Fe or Fe3B) and a hard magnetic phase (Nd 2Fe14B) are found to vary sensitively with the sintering temperature, and the samples sintered at 600-650°C show optimum hard magnetic properties. At the same sintering temperature of 600°C, the sample with a higher heating speed of 2400°C/min exhibits larger coercivity and remanence than that with a lower heating speed of 244°C/min, which is attributed to the difference in the grain size.

本文言語English
論文番号012014
ジャーナルJournal of Physics: Conference Series
106
1
DOI
出版ステータスPublished - 2008 3 1
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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