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- W2959920259 abstract "This paper aims at reducing iron loss of oriented silicon steel and improving its electromagnetic properties. The laser ablation was carried out with different scribe spacing by 532nm picosecond laser. The characteristics of ablation morphology and ablation mechanism were analyzed and discussed using 3D confocal microscope, SEM and EDS. Key magnetic parameters of oriented silicon steel such as relative permeability, dynamic hysteresis loop, and iron loss were measured using iron loss meter. The results show a regular and defect-free ablation morphology obtained by 532nm ultrafast laser, which has the characteristics of force effect damage. The performance improvement effect of silicon steel with the scribe spacing 3.5mm has been shown to be the best. The P1.5/50 and P1.7/50 decreased by 11.5% and 13.8% respectively, the peak of relative permeability increased by 13.6%, and the coercivity and loop area decreased by 12.3% and 11.9% respectively. The improvement of magnetic properties of silicon steel mainly depends on the domain structure and residual stress distribution." @default.
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- W2959920259 date "2019-07-08" @default.
- W2959920259 modified "2023-10-16" @default.
- W2959920259 title "Study on magnetic properties of oriented silicon steel scribed by ultrafast laser" @default.
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- W2959920259 doi "https://doi.org/10.1117/12.2540019" @default.
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