( 湖南大學(xué) 材料科學(xué)與工程學(xué)院， 長沙 410082)
摘 要: 利用單輥法制備單層非晶薄帶，采用雙噴嘴快速凝固技術(shù)將2層合金直接復(fù)合到一起，制備出雙層非晶復(fù)合帶材料。 研究了單層薄帶材料的軟磁性能以及雙層復(fù)合后軟磁性能的變化， 結(jié)果表明： 將具有高的磁導(dǎo)率、 低弛豫頻率和高弛豫頻率、 較低磁導(dǎo)率兩2種材料制成雙層復(fù)合材料能有效地改善其軟磁綜合性能，并根據(jù)疇壁運(yùn)動動力學(xué)和內(nèi)應(yīng)力的影響進(jìn)行了分析。 該研究對改善軟磁材料的綜合性能具有重要意義。
關(guān)鍵字: 雙層復(fù)合； 納米晶； 磁性能
HU Ai-ping, TANG Yuan-hong
（ College of Materials Science and Engineering,
Hunan University, Changsha 410082, China）
Abstract: Monolayer amorphous ribbons were prepared by single-roller spinning method. Two different amorphous ribbons can be layered together directly and bilayer amorphous ribbons can be obtained by the so-called double-nozzle melt spinning technique. The soft magnetic properties of the monolayer and bilayer ribbons were investigated. It is shown that the excellent synthetical magnetic properties can be obtained in the bilayer composite ribbons made of two type of materials with high permeability, low relaxation frequency and high relaxation frequency, moderate permeability respectively. This method is useful for the improvement of the synthetical magnetic properties in metallic soft magnetic materials.
Key words: bilayer composite;nanocrystalline;magnetic properties
