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US 2023/0399237 A1Published application
Y-type hexaferrite, method of manufacture, and uses thereof
OwnerYajie Chen, Lance Young +3inventors
InventorsYajie Chen, Lance Young, Allen F. Horn, III, William Blasius, Lori Brock
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Abstract
In an aspect, a Co2Y-type ferrite includes oxides of at least Ba, La, Co, Me, Fe, and optionally Ca; wherein Me is at least Ni and optionally one or more of Zn, Cu, Mn, or Mg. A composite can include the Co2Y-type ferrite and a polymer. An article can include the Co2Y-type ferrite.
Claims20
A Co2Y-type ferrite, comprising:
- oxides of at least Ba, La, Co, Me, Fe, and optionally Ca;
- wherein Me is at least Ni and optionally one or more of Zn, Cu, Mn, or Mg.
A method of making a Co2Y-type ferrite comprising:
- milling ferrite precursor compounds comprising oxides of at least Ba, La, Co, Me, and Fe, wherein Me includes Ni and optionally another divalent element to form a magnetic oxide mixture;
- and
- calcining the magnetic oxide mixture in an oxygen or air atmosphere to form the Co2Y-type ferrite.
Dependencies are inferred from the claim text.