Microstructure and Magnetostriction of Sm-Fe GMFs
In this paper, both technologies of ion beam sputtering deposition (IBSD) and vacuum casting alloy target were used to fabricate Sm-Fe giant magnetostrictive thin films (Sm-Fe GMFs). The films were annealed at different temperatures under vacuum condition. The results showed that under the fixed fabrication procedure of IBSD, compact amorphous Sm-Fe GMFs with smooth surface and high interfacial adhesion had been deposited. With post-annealing temperature rising, the microstructure of the films had been changed as following order: amorphous → amorphous+microcrystalline→nano-polycrystalline (crystallization temperature was about 400℃), and magnetostriction of films had changed as well. It was note that after properly annealing, the magnetostriction of Sm-Fe GMFs could be drastically improved (λ could reach about -350×10-6 at an applied magnetic field of SOKA·m-1).
Sm-Fe GMFs Microstructure Magnetostriction
ZHOU Bai-yang LUO Han-bin
College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
国际会议
沈阳
英文
277-281
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）