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[期刊论文]

Spark plasma sintering Nd2Fe14B/alpha-Fe bulk exchange-spring magnets

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Author:

Yue, M (Yue, M.) (Scholars:岳明) | Tian, M (Tian, M.) | Liu, WQ (Liu, WQ.) (Scholars:刘卫强) | Unfold

Indexed by:

CPCI-S SCIE

Abstract:

The Nd2Fe14B/a - Fe bulk exchange-spring magnets have been prepared by spark plasma sintering melt spun Nd9.8Dy0.4Fe78Co5.6B5.8 flakes under different temperatures and pressures. It was found that higher sintering temperature improved the densification of the magnets, while deteriorated their magnetic properties simultaneously. An increased compressive pressure can restrain the grain growth remarkably and then leads to better magnetic properties and higher density for the magnet at same sintering temperature. XRD analysis showed that with the increase of sintering pressure, some peaks indicating c-axis texture such as (006) and (105) became dominant. As a result, the bulk magnet exhibited higher remanence and maximum energy product than starting powders.

Keyword:

exchange coupling crystal structure spark plasma sintering microstructure Nd2Fe14B/alpha-Fe

Author Community:

  • [ 1 ] Beijing Univ Technol, Minist Educ, Key Lab Adv Funct Mat, Beijing 100022, Peoples R China

Reprint Author's Address:

  • 岳明

    [Yue, M]Beijing Univ Technol, Minist Educ, Key Lab Adv Funct Mat, Beijing 100022, Peoples R China

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Source :

PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5

ISSN: 0255-5476

Year: 2005

Volume: 475-479

Page: 2161-2164

JCR Journal Grade:4

Cited Count:

WoS CC Cited Count: 8

30 Days PV: 2

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