MAGNETIC-PROPERTIES OF ULTRAFINE FE-NI-B PARTICLES

被引：20
|
作者：
NAFIS, S [1 ]
HADJIPANAYIS, GC [1 ]
SORENSEN, CM [1 ]
KLABUNDE, KJ [1 ]
机构：
[1] KANSAS STATE UNIV AGR & APPL SCI,DEPT CHEM,MANHATTAN,KS 66506
来源：
JOURNAL OF APPLIED PHYSICS | 1990年 / 67卷 / 09期
关键词：
D O I：
10.1063/1.344887
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Ultrafine Fe-Ni-B particles were synthesized by reducing iron and nickel salts with NaBH4 in aqueous solutions. The particles had diameters in the range of 100-300 Å. X-ray diffraction patterns showed that particles with boron concentration 18 at. % or more were amorphous; otherwise they were crystalline. It was also found that the amorphous particles contain less than 50 at. % of Fe. The coercivity of Fe-B particles was increased by an addition of a small amount of Ni to the system. The room-temperature coercivity and saturation magnetization for particles of composition Fe63Ni 24B13 and of diameter 100 Å were 1275 Oe and 70 emu/g, respectively.
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收藏
页码：4478 / 4480
页数：3
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