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MELT-SPUN SM-FE-GA-C ALLOYS WITH HIGH COERCIVITY

被引：14
作者：
ZHENG, YH
MURTHY, AS
YANG, FM
HADJIPANAYIS, GC
机构：
[1] UNIV DELAWARE,DEPT PHYS & ASTRON,NEWARK,DE 19716
[2] CHINESE ACAD SCI,INST PHYS,BEIJING 100080,PEOPLES R CHINA
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1995年 / 140卷
关键词：
D O I：
10.1016/0304-8853(94)00956-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The coercivity and microstructure of melt-spun Sm2Fe17-xGaxCy (x = 2, 3 and y = 1, 1.5, 2, 2.5) carbides have been studied as a function of composition and annealing temperature. The highest coercivity was obtained in Sm2Fe14Ga3Cx (x = 2, 2.5) samples when annealed at 800 degrees C for 20 min with a value of 12.8 kOe at room temperature. Microstructure studies showed the coexistence of alpha-Fe and 2:17-type phases in all the samples studied. Smooth hysteresis curves characteristic of exchange coupled magnets have been obtained only in samples with uniformly distributed phases having a fine grain size around 25 nm.
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页码：1081 / 1082
页数：2
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