Ferrite materials, methods of preparing the same, and...

Details Ferrite materials, methods of preparing the same, and... Ferrite materials, methods of preparing the same, and...

2005-02-22

2005-02-22

Koslow, C. Melissa (Department: 1755)

Compositions

Magnetic

Iron-oxygen compound containing

C252S062630, C252S062590

Reexamination Certificate

active

06858155

ABSTRACT:
Ferrite materials, methods of forming the same, and products formed therefrom are disclosed, comprising, as main components, an iron oxide ranging from 55.5 to 58.0 mole percent calculated as Fe2O3, an amount of manganese oxide ranging from 38.0 to 41.0 mole percent calculated as MnO, and an amount of zinc oxide ranging from 3.3 to 4.7 mole percent calculated as ZnO. The present invention also includes, as minor components, an amount of calcium oxide ranging from 0.030 to 0.100 weight percent calculated as CaO, an amount of silicon oxide ranging from 0.015 to 0.040 weight percent calculated as SiO2, and an amount of niobium oxide ranging from 0.010 to 0.030 weight percent calculated as Nb2O5.

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