THE MAGNETIC-PROPERTIES OF FE-SI 6.5WT-PERCENT ALLOYS OBTAINED BY A SICL4-BASED CVD PROCESS

Grain-oriented Fe-Si alloys have been Si enriched up to 6.5 wt% by a c hemical vapour deposition method using SiCl4. Both longitudinally and transversally cut laminations exhibit a decrease of the energy losses, measured from de to 400 Hz, upon Si enrichment. The strong decrease o f magnetostriction and the increase of electrical resistivity caused b y the addition of Si chiefly affect the hysteresis and the classical l oss components, respectively, and combine to provide a decrease of the excess losses.