The effects of a high magnetic field up to 4 T in the perpendicular or parallel to current configurationon the electrodeposition process and quality of Sm-Fe film were investigated. The behaviors ofhydrogen evolution reaction and desorption from cathode surface were recorded by a digitalcamcorder. The microstructures, Samarium content and the phase composition of deposited Sm-Fefilms were characterized by using of SEM equipped with EDS and GIXRD, respectively. Themagnetic property was tested by VSM. It was found that quality of deposited films was stronglyaffected by the imposed high magnetic field. Moreover, magnetohydrodynamic (MHD) effect plays apredominant role in hydrogen evolution reaction rate and raising trajectory when the magnetic field isparallel to the electrode surface, thereby results in the microstructure of the deposited films. Micro- MHD effect plays a role in the electrodeposition process of Sm-Fe film when field is perpendicular tothe electrode surface. The Sm-Fe film obtained at B=2 T flux density with the field perpendicular tocurrent configuration has better magnetic property compared with that of absence of high magneticfield.
展开▼
