Abstract
The magneto-acoustic emission (MAE) from a 3% Si-Fe single crystal splits into two peaks at the coercive force during half a cycle of the B-H hysteresis loop, one associated with the change of strain due to the nucleation and the other due to the annihilation of domain walls. The emission increases as the magnetising frequency increases; however, the rate decreases above the frequency where the skin-depth effect becomes apparent. The emission from 3% Si-Fe polycrystals increases with tensile stress up to 11.2*106 N m-2, then it decreases with further stressing. The source mechanism of the MAE is discussed in terms of the change of strains: one is related to the magnetostriction coefficient due to the nucleation and annihilation of domain walls, and the other is related to the magnetostriction due to the 90 degrees domains.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
