初步研究了磁致伸缩材料TbFe1.9合金在磁场中凝固的取向控制.结果表明,在与重力平行的120mT磁场中,当Φ16 mm的合金熔体的冷却速率为0.7℃/min时,平行于磁场的[111]取向将成为凝固后试样中的择优取向.结合对凝固速率的控制,在远高于居里点的高温熔体中,磁性材料的晶体生长沿易轴的取向可在较弱的磁场中实现.
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