| Studies on the influence of various fabrication parameters viz., calcination temperature,
grinding period, sintering temperature and soaking time, on the initial a. c. permeability
and Q-factor of Nickel-Zinc-Ferrite (Ni0 •3Zn0 •7 Fe20 4) samples, were made with a
view to develop ferrite cores, for use at high frequencies. A higher calcination temperature,
a lower sintering temperature and a shorter soaking period have been found desirable
to attain reasonably high density coupled with a low initial permeability and high Q.
Repeated calcinations interspaced with wet grinding resulted in further improvement
of the properties. |
