01985nas a2200265   4500008004100000022001400041245014300055210006900198260006900267300001200336490000800348520101100356653002301367653001301390653001001403653003301413653002201446100002001468700001901488700002001507700002401527700002101551700002101572856012601593       2009                        eng d  a0925-838800aSynthesis, characterization and effect of sintering temperature on magnetic properties of MgNi ferrite prepared by co-precipitation method0 aSynthesis characterization and effect of sintering temperature o  aPO BOX 564, 1001 LAUSANNE, SWITZERLANDbELSEVIER SCIENCE SAcMAY  a926-9290 v4753 a<p>Mixed MgNi ferrites with composition Mg(0.5)Ni(0.5)Fe(2)O(4) where the mole fraction for Ni (x = 0, 0.25, 0.75, 0.5 and 1) were prepared by following co-precipitation method at temperature 110 degrees C and maintaining a pH of solution equal to 9.5 enable to achieve large particle surface area. The resultant materials obtained in powder form were sintered at different temperatures. Thermogravimetry (TGA), X-ray diffraction (XRD) and scanning electron microscopy, technique were applied to obtain structural parameters. The XRD patterns reveal the presence of(311) peak as the most intense one. The intensity of XRD peak increases with increase in sintering temperature. The saturation magnetization values showed increasing trend with increase in sintering temperature from 2.37 to 29.76 emu/g. These results along with the analysis of SEM micrographs are interpreted in terms of increase in particle grain size with increase in sintering temperature. (C) 2008 Elsevier B.V. All rights reserved.</p>10aChemical synthesis10aFerrites10aFT-IR10ascanning electron microscopy10aX-ray diffraction1 aHankare, P., P.1 aJadhav, S., D.1 aSankpal, U., B.1 aChavan, Santosh, S.1 aWaghmare, K., J.1 aChougule, B., K.  uhttps://library.ncl.res.in/content/synthesis-characterization-and-effect-sintering-temperature-magnetic-properties-mgni-001936nas a2200217   4500008004100000022001400041245010400055210006900159260010600228300000900334490000700343520108200350653001101432653002201443653003701465100002301502700002401525700002001549700002101569856012801590       2014                        eng d  a0025-540800aInfluence of starting precursors and synthesis methods on the physiochemical properties of zirconia0 aInfluence of starting precursors and synthesis methods on the ph  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcJUL  a8-120 v553 a<p>Under identical and judiciously pre-optimized synthesis conditions, the influence of different combinations of zirconium sources and/or post treatment conditions on structural properties, thermal stability, phase composition and morphology of zirconia has been investigated. High surface area tetragonal zirconia could be synthesized in a cost-effective manner from 1 M solution of zirconium oxynitrate at pH 11 using aqueous ammonia solution as a precipitant when calcined at 400 degrees C for 3 h. Irrespective of the preparation method, pH and starting precursor, zirconia samples prepared without digestion contained dominant monoclinic phase with some traces of tetragonal phase when calcined at 700 degrees C. Even though there is linear decrease in surface area with increase in the crystallite size for each sample as a function of calcination temperature, no co-relation between the surface area and crystallite size could be achieved. SEM images show agglomerated and irregular shape particles between 10 to 20 mu m. (C) 2014 Elsevier Ltd. All rights reserved.</p>10aOxides10aSol-gel chemistry10aThermogravimetric analysis (TGA)1 aGaydhankar, T., R.1 aJha, Ratnesh, Kumar1 aNikalje, M., D.1 aWaghmare, K., J.  uhttps://library.ncl.res.in/content/influence-starting-precursors-and-synthesis-methods-physiochemical-properties-zirconia-0