Rogers Corporation
BISMUTH RUTHENIUM M-TYPE HEXAFERRITE

Abstract:

In an aspect, a ferrite composition comprises a BiRuCo-M-type ferrite having the formula Me.sub.1-xBi.sub.xCo.sub.yRu.sub.zFe.sub.12-tO.sub.19, wherein Me is at least one of Sr, Pb, or Ba; x is 0.01 to 0.5; y is 0.1 to 2; z is 0 to 4, and t is 0 to 4; wherein the Co can be at least partially replaced by at least one of Zn, Cu, or Mg by an amount of less than y, and the Ru can be at least partially replaced by at least one of Ti, Sn, or Zr, where the substitution amount is not more than z or is less than z.