Amorphous-crystalline dual-layer structures resulting from metastable liquid phase separation in (Fe50Co25B15Si10)8oCu20 melt-spun ribbons

• 来源期刊: 中国物理B（英文版）
• 关键词: amorphous alloy rapid solidification liquid phase separation magnetic property
• 年，卷（期）: 2012,（8）
• 页码范围: 339-342
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/1674-1056/21/8/086102

摘要

(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.