材料导报
材料導報
재료도보
MATERIALS REVIEW
2009年
z2期
538-540
,共3页
杜兆富%王蕾%洪兴%张洪平
杜兆富%王蕾%洪興%張洪平
두조부%왕뢰%홍흥%장홍평
磁致伸缩%替代%Terfenol-D
磁緻伸縮%替代%Terfenol-D
자치신축%체대%Terfenol-D
magnetostriction%substitution%Terfenol-D
研究了Mn替代Fe对多晶Tb0.4Dy0.6Fe1.91合金棒材性能的影响.分析了Tb0.4Dy0.6(Fe1-xMnx)1.91(x=0,0.05,0.10,0.15)多晶棒材的结构、晶格常数、居里温度和磁致伸缩性能,发现Mn替代Fe后,样品仍然为MgCu2型Laves相结构.随着Mn含量从0增加到0.15,样品的晶格常数从7.335A增加到7.347A,居里温度从668K降低到526K.Mn原子的替代通过改变材料的交换相互作用、总磁矩和易磁化方向影响材料的磁致伸缩性能.实验结果显示,Tb0.4Dy0.6(Fe1-xMnx)1.91样品在石=0.10时综合性能最好.
研究瞭Mn替代Fe對多晶Tb0.4Dy0.6Fe1.91閤金棒材性能的影響.分析瞭Tb0.4Dy0.6(Fe1-xMnx)1.91(x=0,0.05,0.10,0.15)多晶棒材的結構、晶格常數、居裏溫度和磁緻伸縮性能,髮現Mn替代Fe後,樣品仍然為MgCu2型Laves相結構.隨著Mn含量從0增加到0.15,樣品的晶格常數從7.335A增加到7.347A,居裏溫度從668K降低到526K.Mn原子的替代通過改變材料的交換相互作用、總磁矩和易磁化方嚮影響材料的磁緻伸縮性能.實驗結果顯示,Tb0.4Dy0.6(Fe1-xMnx)1.91樣品在石=0.10時綜閤性能最好.
연구료Mn체대Fe대다정Tb0.4Dy0.6Fe1.91합금봉재성능적영향.분석료Tb0.4Dy0.6(Fe1-xMnx)1.91(x=0,0.05,0.10,0.15)다정봉재적결구、정격상수、거리온도화자치신축성능,발현Mn체대Fe후,양품잉연위MgCu2형Laves상결구.수착Mn함량종0증가도0.15,양품적정격상수종7.335A증가도7.347A,거리온도종668K강저도526K.Mn원자적체대통과개변재료적교환상호작용、총자구화역자화방향영향재료적자치신축성능.실험결과현시,Tb0.4Dy0.6(Fe1-xMnx)1.91양품재석=0.10시종합성능최호.
The substitution of Fe by Mn in polycrystalline Tb0.4 Dy0.6 Fe1.91 has been investigated. The structure, lattice constant, Curie temperature, and magnetostriction are examined. The matrix of Tb0.4 Dy0.6 (Fe1-x Mnx ) 1. 91 (x=0,0. 05,0. 10,0. 15) are all MgCu2 type Laves phase structure. With the increase of Mn content from 0 to 0. 15,the lattice parameter increases from 7. 335(A) to 7.347(A) and the Curie temperature decreases from 668K to 526K. The substitution of Mn changes exchange interactions, total magnetic moment and the orientation along the rod axis, so the magnetostriction has been affected. The experimental results show at x=0.10 the performance of the sample Tb0.4-Dy0.6 (Fe1-xMnx)1.91 is the best.
