Xianghua LIU
,
Ge YAN
,
Liya CUI
,
Shaoxiong ZHOU
,
Wu ZHENG
,
Ailing WANG
,
Jinchang CHEN
材料科学技术(英文)
Sm22Co78/Fe65Co35/Sm22Co78/Fe65Co35 multilayer films were prepared by magnetron sputtering. The temperature dependence of coercivity (H-c), remanence (M-r) and reduced remanence (M-r/M-s) has been measured. The coercivity decreases with increasing of temperature. The remanence decreases with increasing the temperature from 26 to 100 degrees C, and then increases with continuously increasing the temperature from 100 to 150 degrees C. The reduced remanence increases with increasing the temperature.
关键词:
Wenzhi CHEN
,
Shaoxiong ZHOU
,
Jinchang CHEN
材料科学技术(英文)
M-s-T curves and hysteresis loops were investigated for amorphous Fe78Si9B13, (FeNi)(78)(CrSiB)(22), their lap-wound-cores, and their composite ribbons made by two-chamber-crucible technique. The properties of the lap-wound cores of the two kinds of ribbons are similar. For the composite ribbons. the intrinsic properties are the average of the two alloys. Their technological properties, i.e., hysteresis loops, however, are no longer the average of the two alloys. Instead, they show some dramatic changes compared to the lap-wound-cores. Especially, the shape of the hysteresis loop of the composite ribbon cores is largely different from that of lap-wound-cores. The reason for the difference is supposed to be internal stress induced from cooling after annealing.
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