Inventors:
William D. Kehr - Longmont CO
Harold L. Turk - San Jose CA
International Classification:
C04B 3530
Abstract:
a nickel-zinc ferrite material suitable for use in magnetic heads is disclosed. The material has a general empirical formula (Ni. sub. 1-y Zn. sub. y). sub. l-x Fe. sub. 2+x O. sub. 3. 99 wherein x is less than 0 and greater than -0. 040, y is from about 0. 44 to about 0. 58, and wherein the ratio of %NiO/%ZnO is from about 0. 72 to about 1. 27, and wherein the mole percent of NiO is from about 21. 5 to about 28. 5%, and the mole percent ZnO is from about 22. 5 to about 29. 5%, and the mole percent Fe. sub. 2 O. sub. 3 is from about 48 to about 50%. More specific composition ranges as well as a preferred composition are also disclosed.
