02313nas a2200265   4500008004100000022001400041245011400055210006900169260005700238300001200295490000700307520138000314653002301694653001501717653000901732653002701741653002301768100002001791700002301811700002401834700001801858700002301876700002301899856012501922       2013                        eng d  a0361-523500aSynthesis of low coercive BaFe12O19 hexaferrite for microwave applications in low-temperature cofired ceramic0 aSynthesis of low coercive BaFe12O19 hexaferrite for microwave ap  a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGERcAPR  a761-7680 v423 a<p>Polycrystalline M-type barium hexaferrite (BaFe12O19) samples have been synthesized by solution combustion route at different pH and calcination conditions in order to reduce the coercivity for microwave applications in low-temperature cofired ceramic (LTCC) substrates. Structural, morphological, and magnetic properties of BaFe12O19 were studied by x-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), Raman spectroscopy, vibrating sample magnetometry (VSM), and Mossbauer spectroscopy. The formation of a single-phase hexagonal structure was confirmed by XRD. The Raman spectra reveal all characteristic peaks of BaFe12O19, illustrating the phase purity and crystal lattice symmetry of the synthesized material. Mossbauer spectra illustrate the existence of Fe3+ cations at all five crystallographic lattice sites. The microstructural features observed by FESEM disclose the growth of nanoregime particles into hexagonal platelet particles after calcination at temperatures from 800A degrees C to 1200A degrees C. The VSM results show a lower coercivity (1350 Oe to 3500 Oe) together with reasonably high saturation magnetization (55 emu/g to 60 emu/g) and a high bulk resistivity (&gt; 10(9) Omega-cm) at room temperature. The dependence of magnetic and electrical properties on the preparation and processing conditions is also discussed.</p>10aBarium hexaferrite10acoercivity10aLTCC10aMossbauer spectroscopy10aRaman spectroscopy1 aRane, Vivek, A.1 aMeena, Sher, Singh1 aGokhale, Suresh, P.1 aYusuf, S., M.1 aPhatak, Girish, J.1 aDate, Sadgopal, K.  uhttps://library.ncl.res.in/content/synthesis-low-coercive-bafe12o19-hexaferrite-microwave-applications-low-temperature-0