Materials with higher induction are required for smaller magnetic cores with higher efficiency. Doubly oriented silicon steel is one of the materials which could be applied to cores designed for higher induction use. Here, the magnetic properties of doubly oriented sheets were examined crystallographically firstly. Then, the magnetic properties of rectangular cores with no joint were measured in DC and AC magnetization, comparing with FeCo alloy which has high saturation induction, and other soft magnetic materials. The core loss of the doubly oriented silicon steel was about a half of that of FeCo alloy (permendur).
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