Crystal growth of giant magnetostrictive Tb-Dy-Fe alloy
Crystal growth of giant magnetostrictive Tb-Dy-Fe alloy
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DOI：
10.1016/s0925-8388(97)00064-9
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发表时间：
1997-08-01
影响因子：
6.2
通讯作者：
Umeda, T
中科院分区：
文献类型：
--
作者：
Mei, W;Yoshizumi, M;Umeda, T
研究了超磁致伸缩Tb-Dy-Fe合金的晶体生长。利用Tb-Dy-Fe合金的择优生长获得了<；112>；和<；110>；孪晶‘单晶’。低生长速率(如3 mm h~(-1))能有效地抑制孪生。用<；112>；孪晶的籽晶成功地生长出了<；111>；取向的单晶。高生长速率(如60 mm h~(-1))引起孪晶，且a生长沿轴向热流方向倾斜，从而破坏了沿<；111>；方向的无孪晶生长。在<；111>；晶体的初始生长区，通常观察到REFe3带结构。(C)1997年爱思唯尔科学公司。
Crystal growth of the giant magnetostrictive Tb-Dy-Fe alloy has been investigated. < 112 > and < 110 > twinned 'single' crystals were obtained utilizing the preferred growth of the Tb-Dy-Fe alloy. The twinning could be effectively suppressed by low growth rates such as 3 mm h(-1). With seed crystals cut from the < 112 > twinned 'single' crystal, < 111 > oriented single crystals were successfully grown. High growth rates such as 60 mm h(-1) induced the twinning: and a growth tilted from axial heat flow direction, and thus destroyed the twinless growth along < 111 > direction. In the initial growth regions of the < 111 > crystals, a REFe3 banded structure was usually observed. (C) 1997 Elsevier Science S.A.