Back to results
US 2023/0197322 A1Published application
Ferrite sintered magnet
AssigneeTDK Corporation
InventorsShirou OOTSUKI, Keisuke KAMIYA
Life of this patent
Estimating the term…
Abstract
Provided is a ferrite sintered magnet including: magnetoplumbite type ferrite crystal grains; and a two-grain boundary interposed between the ferrite crystal grains. The two-grain boundary contains Ca and La, and an atomic ratio Ca/La at the two-grain boundary is 0.3 to 3.0.
Claims4
A ferrite sintered magnet, comprising:
- a magnetoplumbite type ferrite crystal grains;
- and
- a two-grain boundary interposed between the ferrite crystal grains,
- the two-grain boundary contains Ca and La, and a Ca/La atomic ratio at the two-grain boundary is 0.3 to 3.0.
1 more element
Dependencies are inferred from the claim text.