%0 Journal Article
%T MAGNETOMECHANICAL COUPLING FACTOR (k33) OF Tb0.36Dy0.64(Fe0.85Co0.15)2 <110> ORIENTED CRYSTALS<br>
%J 金属学报
%D 2008
%I 
%X <110> oriented crystals Tb0.36Dy0.64(Fe0.85Co0.15)2 have been prepared by zone melting directional solidification method. The magnetomechanical coupling factor (k33) was determined by resonance/anti-resonance method in low bias fields. It was found that k33 is sensitive to both the bias field and the compressive pre-stress. Without compressive pre-stress, optimum k33 can be obtained with the value of 0.513 at a bias field of 50.9 kA/m. When applying a compressive pre-stress of 10 MPa, relatively lower k33 was obtained. It was attributed that extra energy of 71° domain wall is induced by the compressive pre-stress, which hinders the movement of magnetic moments or domain walls, decreasing the transition efficiency between the magnetic and mechanical energies.
%K Magnetostriction
%K Magnetomechanical coupling factor
%K Bias field
%K Compressive pre-stress<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=7BEA7D50599AE53605C18BEE05032FA0&yid=67289AFF6305E306&vid=1AE5323881A5ECDC&iid=F3090AE9B60B7ED1&sid=328E221C70C13B92&eid=302799463F713260&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=0