02051nas a2200265   4500008004100000022001400041245012700055210006900182260007300251300001400324490000800338520109600346653001701442653001601459653002201475653001801497653001901515653001501534100002001549700002401569700002001593700002201613700002101635856012901656       2008                        eng d  a0304-885300aSynthesis and magnetic properties of barium-calcium hexaferrite particles prepared by sol-gel and microemulsion techniques0 aSynthesis and magnetic properties of bariumcalcium hexaferrite p  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcMAR  a1095-11010 v3203 a<p>The preparation of W-type hexaferrite particles with the composition BaCa2Fe16O27 by microemulsion and a stearic acid sol - gel method with and without surfactant has been investigated at various sintering temperatures. The structural and magnetic characteristics have been studied by X-ray diffraction ( XRD), a vibrating sample magnetometer ( VSM), scanning electron microscopy ( SEM), thermogravimetric analysis ( TGA), differential scanning calorimetric ( DSC) and Fourier transform infrared ( FTIR) techniques. The effect of sintering temperature on the properties of BaCa2Fe16O27 hexaferrites has been studied. The value of saturation magnetization ( M-s) depends on types of surfactant used. The sample prepared in the presence of polyoxyethylene ( 20) sorbitan monooleat ( Tween 80) shows low saturation magnetization ( M-s 15.10 emu/g), whereas the other sample prepared in the presence of a surfactant cetyltrimethylammonium bromide (CTAB) exhibits high saturation magnetization (M-s = 24.60 emu/g) compared to the normal sample. (C) 2007 Elsevier B. V. All rights reserved.</p>10aBaCa2Fe16O2710ahexaferrite10amagnetic property10aMicroemulsion10aSol-gel method10asurfactant1 aJotania, R., B.1 aKhomane, Ramdas, B.1 aChauhan, C., C.1 aMenon, Shamal, K.1 aKulkarni, B., D.  uhttps://library.ncl.res.in/content/synthesis-and-magnetic-properties-barium-calcium-hexaferrite-particles-prepared-sol-gel-002178nas a2200229   4500008004100000022001400041245016100055210006900216260009200285300001200377490000700389520125400396653002201650653002001672653002301692653002601715100001801741700002001759700002401779700002101803856012401824       2016                        eng d  a1936-661200aEffect of different temperature on structural, magnetic and dielectric properties of strontium hexaferrite powder synthesised using aloe vera plant extracts0 aEffect of different temperature on structural magnetic and diele  a26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USAbAMER SCIENTIFIC PUBLISHERScAPR  a869-8750 v223 a<p>M-type SrFe12O19 hexaferrite particles synthesized using the aloe vera plant extract. Biological materials of microorganisms, plants, enzymes have been suggested as an ecological alternative for conventional reagents in physical and chemical methods. In present paper we report effect of temperature on structural, morphology, magnetic and dielectric properties of M-type SrFe12O19 particles synthesised by Green synthesis technique using Aloe vera plant extract. The metal nitrates (Sr and Fe) were dissolved in aloe vera extract solution and then mixture was kept in oil bath at 100 degrees C till it become dry. The obtain dried powder calcined in a wide temperature range, from 450 degrees C to 1150 degrees C for 4 hours in a static air atmosphere. The calcined powders were characterised using various instrumental techniques like Fourier transform infrared spectroscopy (FTIR) X-ray diffractometry (XRD), Scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), Vibrating Sample Magnetometry (VSM), and dielectric measurements. XRD, FTIR, SEM, Magnetic and dielectric measurements were carried out at room temperature. XRD analysis confirms the formation of mono phase of strontium hexaferrite at 1150 degrees C.</p>10aAloe Vera Extract10agreen synthesis10aM-Type Hexaferrite10aStrontium Hexaferrite1 aSolanki, Neha1 aJotania, R., B.1 aKhomane, Ramdas, B.1 aKulkarni, B., D.  uhttps://library.ncl.res.in/content/effect-different-temperature-structural-magnetic-and-dielectric-properties-strontium01627nas a2200229   4500008004100000020002200041022001400063245012100077210006900198260008800267300001100355490000900366520076100375100002301136700001801159700002201177700002001199700001801219700001701237700001501254856012801269       2016                        eng d  a978-0-7354-1375-7  a0094-243X00aEffect of sintering temperature and vinca petals extract on structural and magnetic properties of delafossite CuFeO20 aEffect of sintering temperature and vinca petals extract on stru  a2 Huntington Quadrangle, STE 1NO1, Melville, NY 11747-4501 USAbGovt Engn CollcMAY  a0200740 v17283 a<p>Delathssite CuFeO2, multi ferroic powder was synthesized using Sol-Gel auto combustion method. Influence of vinea flower petals extract on structural and magnetic properly of CuFeO2 were investigated. X-ray analysis of normal samples (synthesized without presence of vinca petals extract) shows formation of hematite and ferrite phases while the sample synthesized in presence of vinca petals extract show only mono phase. The absorption bands in FTIR spectra present between 510-460 cm(-1)in both the samples are due to stretching of Fe-O vibrations. VSM analysis shows that the squareness ratio (Mr/Ms) of the sample prepared using vinca petals extract obtains value of squareness ratio &lt;0.5, which attributes multi domain formation of samples.</p>1 aDhruv, Preksha, N.1 aSolanki, Neha1 aKulkarni, Shailja1 aJotania, R., B.1 aShekhawat, MS1 aBhardwaj, S.1 aSuthar, B.  uhttps://library.ncl.res.in/content/effect-sintering-temperature-and-vinca-petals-extract-structural-and-magnetic-properties