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Wear resistant nickel-zinc ferrite
T976003 Wear resistant nickel-zinc ferrite
Patent Drawings:Drawing: T976003-2    Drawing: T976003-3    
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Inventor: Kehr, et al.
Date Issued: November 7, 1978
Application: 05/852,992
Filed: November 18, 1977
Inventors: Kehr; William D. (Longmont, CO)
Turk; Harold L. (San Jose, CA)
Assignee:
Primary Examiner:
Assistant Examiner:
Attorney Or Agent:
U.S. Class: 252/62.62
Field Of Search:
International Class: C04B 35/26
U.S Patent Documents:
Foreign Patent Documents:
Other References:









Abstract: a nickel-zinc ferrite material suitable for use in magnetic heads is disclosed. The material has a general empirical formulawherein 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.
Claim:
Description:
 
 
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