Structures and magnetic properties of Nd-Fe-B bulk nanocomposite magnets produced by the spark plasma sintering method

Structures and magnetic properties of Nd-Fe-B bulk nanocomposite magnets produced by the spark plasma sintering method
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放电等离子烧结法制备Nd-Fe-B块体纳米复合磁体的结构与磁性能

DOI:
10.1557/jmr.2004.0358
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发表时间:
2004
影响因子:
2.7
通讯作者:
H. Kageyama
H. Kageyama
中科院分区:
材料科学4区
文献类型:
--
作者:
Tetsuji Sauto;T. Takeuchi;H. Kageyama

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研究了放电等离子烧结(SPS)法制备Nd-Fe-B块体纳米复合磁体的烧结温度和压力对磁体性能的影响。采用放电等离子烧结(SPS)方法成功地将Nd_4Fe_77.5B_18.5快淬非晶薄带烧结成块体。当烧结温度为873 K,烧结压力为30 ~ 70 MPa时,材料由软磁Fe 3B相和硬磁Nd 2Fe 14 B相组成。在873 K烧结的块体材料的密度和磁性能强烈依赖于在烧结过程中施加的压力。在873 K和70 MPa的压力下烧结的Nd_4Fe_77.5B_18.5块体纳米复合磁体具有9.3 kG的高剩磁和2.5 kOe的高矫顽力。
We studied the effects of the sintering temperature and applied pressure on Nd–Fe–B bulk nanocomposite magnets produced by the spark plasma sintering (SPS) method. Amorphous Nd_4Fe_77.5B_18.5 melt-spun ribbons were successfully consolidated into bulk form by the SPS method. When sintered at 873 K under applied pressures between 30 and 70 MPa, the bulk materials consisted of nanocomposite materials with a soft magnetic Fe_3B phase and hard magnetic Nd_2Fe_14B phase. The density and magnetic properties of the bulk materials sintered at 873 K were strongly dependent on the applied pressure during sintering. Bulk Nd_4Fe_77.5B_18.5 nanocomposite magnets sintered at 873 K under an applied pressure of 70 MPa showed a high remanence of 9.3 kG with a high coercivity of 2.5 kOe.
DOI: 10.1063/1.333572
发表时间: 1984-01-01
影响因子: 3.2
作者:
SAGAWA, M;FUJIMURA, S;MATSUURA, Y
通讯作者: MATSUURA, Y
“内塔博”
DOI: --
发表时间: 2019
期刊: 伝え継ぐ 日本の家庭料理12 米のおやつともち
影响因子: --
作者:
平島円;磯部由香;堀光代;樫下達也・多賀秀紀・小山英恵・笹野恵理子;笹野恵理子;磯部由香
通讯作者: 磯部由香