02014nas a2200253   4500008004100000022001400041245010500055210006900160260007300229300001200302490000800314520111200322653001501434653002401449653001801473653001901491653001101510100001501521700001701536700001701553700002501570700003301595856013201628       2006                        eng d  a0304-885300aFinite size effects on the structural and magnetic properties of sol-gel synthesized NiFe2O4 powders0 aFinite size effects on the structural and magnetic properties of  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcJUL  a190-1950 v3023 a<p>Nanoparticles of nickel ferrite have been synthesized by the sol-gel method and the effect of grain size oil its structural and magnetic properties have been Studied in detail. X-ray diffraction (XRD) studies revealed that all the samples are single phasic possessing the inverse spinel structure. Grain size of the sol-gel synthesized powders has been determined from the XRD data and the strain graph. A grain size of 9 nm was observed for the as prepared powders of NiFe2O4 obtained through the sol-gel method. It was also observed that strain was induced during the firing process. Magnetization measurements have been carried out on all the samples prepared in the present series. It was found that the specific magnetization of the nanosized NiFe2O4 powders was lower than that of the corresponding coarse-grained counterparts and decreased with a decrease in grain size. The coercivity of the sol-gel synthesized NiFe2O4 nanoparticles attained a maximum value when the grain size was 15 nm and then decreased as the grain size was increased further. (c) 2005 Elsevier B.V. All rights reserved.</p>10agrain size10amagnetic properties10aNanoparticles10aNickel ferrite10astrain1 aGeorge, M.1 aJohn, A., M.1 aNair, S., S.1 aJoy, Pattayil, Alias1 aAnantharaman, Maliemadom, R.  uhttps://library.ncl.res.in/content/finite-size-effects-structural-and-magnetic-properties-sol-gel-synthesized-nife2o4-powders-0