Square Loop Properties of Lithium-Nickel-Zinc Ferrites
- 1 April 1963
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 34 (4) , 1113-1114
- https://doi.org/10.1063/1.1729393
Abstract
Results of an experimental investigation to obtain square‐loop materials for use in multiaperture logic cores at elevated temperatures are described. Compositions in the lithium‐nickel‐zinc ferrite system were found to exhibit well‐developed hysteresis loops and squareness ratios of 0.96 at temperatures in excess of 300°C. For certain processing conditions, the squareness ratio of lithium ferrite increases when substitutions of Ni2+ are made for Li1+ and Fe3+ in the system Li0.5−x/2NixFe2.5−x/2O4. A maximum in the 25°C squareness ratio of 0.90 is observed for x=0.04. Further improvement of technical hysteresis loop properties are obtained by introducing Zn2+ according to the formula Li0.48−y/2ZnyNi0.04 Fe2.48−y/2O4. A maximum in the 25°C squareness ratio of 0.957 is observed for y=0.05. The substitution of Zn2+ decreases the coercive force, and increases the switchable magnetic induction.This publication has 1 reference indexed in Scilit:
- Magnetic Properties and Associated Microstructure of Zinc‐Bearing Square‐Loop FerritesJournal of the American Ceramic Society, 1957