dc Resistivity in the Nickel and Nickel Zinc Ferrite System
- 1 October 1955
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 23 (10) , 1883-1887
- https://doi.org/10.1063/1.1740598
Abstract
The dependence of the resistivities of nickel and nickel zinc ferrites prepared from high purity reagents upon composition and firing temperature has been studied. It has been determined that iron deficient nickel zinc ferrites are of much higher resistivity than iron deficient nickel or zinc ferrites. The iron deficient ferrites prepared, which were fired in oxygen below 1300°C and have Ni:Zn ratios greater than 3:7, show a positive thermoelectric voltage. Other compositions or materials fired above 1300°C have a negative thermoelectric voltage. The effect of excess iron upon resistivity is dependent upon the presence or absence of zinc at temperatures below 1300°C.Keywords
This publication has 1 reference indexed in Scilit:
- NOTE ON THE DISSOCIATION OF FERRIC OXIDE DISSOLVED IN GLASS AND ITS RELATION TO THE COLOROF IRON‐BEARING GLASSES.1Journal of the American Ceramic Society, 1921