Amorphous-crystalline dual-layer structures resulting from metastable liquid phase separation in(Fe<sub>50</sub>Co<sub>25</sub>B<sub>15</sub>Si<sub>10</sub>)<sub>80</sub>Cu<sub>20</sub> melt-spun ribbons |
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| Authors: | Cao Chong-De a Gong Su-Lian a Guo Jin-Bo a Song Rui-Bo a Sun Zhan-Bo b Yang Sen b and Wang Wei-Min |
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| Institution: | Department of Applied Physics,Northwestern Polytechnic University;School of Science,Xi’an Jiaotong University;Scool of Materials Science and Engineering,Shandong University |
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| Abstract: | (Fe50Co25B15Si10)80Cu20 ribbons are prepared by using the single-roller melt-spinning method.A dual-layer structure consisting of a(Fe,Co)-rich amorphous phase and a Cu-rich crystalline phase forms due to metastable liquid phase separation before solidification.The magnetic hysteresis loops of the as-quenched and annealed samples are measured at room temperature.It is indicated that the coercivity of the ribbon is almost zero in the as-quenched state.The crystallization leads to the increase of coercivity and decrease of saturation magnetization. |
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| Keywords: | amorphous alloy rapid solidification liquid phase separation magnetic property |
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