MAGNETIC CORE Russian patent published in 2000 - IPC

FIELD: electrical engineering; saturable reactors and pulse transformers. SUBSTANCE: proposed spiral ribbon core made of magnetically soft amorphous alloy containing iron, nickel, silicon, and boron has following proportion of alloy components, atom percent: nickel - 0.1-10.0; silicon - 7.0-11.0; boron - 10.0-16.0; iron - the rest; B_r/B₈₀₀ in magnetic core is higher than 0.8, where B_r is residual flux density; B₈₀₀ is magnetic flux density at magnetic field strength of 800 A/m. As an alternative, core may have B_r/B₈₀₀ < 0,1. EFFECT: improved response to heat treatment in magnetic field at high magnetic flux density. 2 cl, 1 dwg, 1 tbl, 1 ex