الفهرس 
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Abstract
The aim of this work is to prepare Ni1-xLio.5xFe2+0.5xO4 where X=0.0, 0.25, 0.5, 0.75, by the standard eeramic method, and study their crystal structures as well as Moosbauer spectra in order to determune the cation distribution. Other transport properties such as DC electrical conductivity and thermoelectric power were also studied for all compositions under investigation.