公开(公告)号：WO2006094251A3

公开(公告)日：2006-09-08

申请号：PCT/US2006/007786

申请日：2006-03-03

Applicant: UNIVERSITY OF UTAH TECHNOLOGY COMMERCIALIZATION OFFICE ,  MUNGSANTISUK, Pinai ,  GURUSWANMY, Sivaraman ,  SRISUKHUMBOWORNCHAI, Nakorn

Inventor： MUNGSANTISUK, Pinai ,  GURUSWANMY, Sivaraman ,  SRISUKHUMBOWORNCHAI, Nakorn

IPC: H01L41/06 ,  H01L41/12 ,  H01L41/20 ,  H01F1/047 ,  H01F1/147 ,  H02N2/00 ,  H04R15/00 ,  H03B5/40

Abstract: A low-cost, thermomechanical method for manufacturing [001] textured FeGa alloys is described. The method includes hot rolling a FeGa cast ingot to break down the cast structure, a two-stage warm rolling with an intermediate anneal, and then a final texture anneal that resulted in recrystallization and a recrystallization-induced texture. The FeGa ingot contains a grain growth agent that was used to restrain grain growth of the FeGa material in the undesired crystallographic direction. A protective steel sheath can be placed around the FeGa material during processing to avoid direct contact of the FeGa and the rolls during the hot and warm rolling process steps and also avoid oxidation of the alloy ingot. FeGa alloys with a very strong [001] texture and a large magnetostriction along [001] crystallographic direction were obtained using this method. FeGaBe alloys and new methods for making them are also described.