功能材料与器件学报
功能材料與器件學報
공능재료여기건학보
JOURNAL OF FUNCTIONAL MATERIALS AND DEVICES
2010年
2期
187-190,196
,共5页
马国俊%支起铮%丁丹%连法增%何开元
馬國俊%支起錚%丁丹%連法增%何開元
마국준%지기쟁%정단%련법증%하개원
纳米晶合金%磁性%磁退火%感生磁各向异性
納米晶閤金%磁性%磁退火%感生磁各嚮異性
납미정합금%자성%자퇴화%감생자각향이성
nanocrystalline alloy%magnetic property%magnetic field annealing%induced magnetic anisotropy
研究了Si含量对Fe87-x Cu1 Nb3 Six B9合金经不同方式退火后磁性能的影响.结果表明:随Si含量的增加,Fe87-x Cu1 Nb3 Six B9合金经普通退火后软磁性能逐渐得到优化;经磁退火后可感生出单轴磁各向异性,且磁退火特征随Si含量的增加而逐渐明显.根据横磁退火实验结果计算出的感生磁各向异性值K,,则由26.7J/m3(Si=9.5at%)降低至14.1J/m3(Si=13.5at%).由实验数据的分析认为Fe87-x Cu1 Nb3 Six B9合金在高Si含量时经普通退火或纵磁退火后呈现优异的软磁特性,归因于析出的α-Fe(Si)相晶粒具有小的磁晶各向异性K,从而导致合金具有更低的有效磁各向异性常数<K>所至.
研究瞭Si含量對Fe87-x Cu1 Nb3 Six B9閤金經不同方式退火後磁性能的影響.結果錶明:隨Si含量的增加,Fe87-x Cu1 Nb3 Six B9閤金經普通退火後軟磁性能逐漸得到優化;經磁退火後可感生齣單軸磁各嚮異性,且磁退火特徵隨Si含量的增加而逐漸明顯.根據橫磁退火實驗結果計算齣的感生磁各嚮異性值K,,則由26.7J/m3(Si=9.5at%)降低至14.1J/m3(Si=13.5at%).由實驗數據的分析認為Fe87-x Cu1 Nb3 Six B9閤金在高Si含量時經普通退火或縱磁退火後呈現優異的軟磁特性,歸因于析齣的α-Fe(Si)相晶粒具有小的磁晶各嚮異性K,從而導緻閤金具有更低的有效磁各嚮異性常數<K>所至.
연구료Si함량대Fe87-x Cu1 Nb3 Six B9합금경불동방식퇴화후자성능적영향.결과표명:수Si함량적증가,Fe87-x Cu1 Nb3 Six B9합금경보통퇴화후연자성능축점득도우화;경자퇴화후가감생출단축자각향이성,차자퇴화특정수Si함량적증가이축점명현.근거횡자퇴화실험결과계산출적감생자각향이성치K,,칙유26.7J/m3(Si=9.5at%)강저지14.1J/m3(Si=13.5at%).유실험수거적분석인위Fe87-x Cu1 Nb3 Six B9합금재고Si함량시경보통퇴화혹종자퇴화후정현우이적연자특성,귀인우석출적α-Fe(Si)상정립구유소적자정각향이성K,종이도치합금구유경저적유효자각향이성상수<K>소지.
The effect of the Si content on magnetic properties for nanocrystalline Fe87-x Cu1 Nb3 Six B9 alloys annealed in different methods has been investigated.It was found that the magnetic properties of Fe87-x Cu1 Nb3 Six B9 alloys annealed in normal methods were obviously improved with the increasing Si content.Annealing under a magnetic field can induce an uniaxial anisotropy and the magnetic annealing feature was increased with the increasing of Si content.According to the results calculated from traversal magnetic annealing,the magnitude of induced magnetic anisotropy Ku was induced from 26.7J/m3(Si = 9.5at%)to 14.1J/m3(Si = 13.5at%).Analysis of the experimental data suggests that the excellent soft properties for Fe87-x Cu1 Nb3 Six B9 alloys with more Si content after normal or magnetic annealing are atmuch lower effective magnetic anisotropy < K >.