Loading...
Search for:
ghasemi--ali
0.012 seconds
Evaluation of Magnetic and Microwave Absorption Properties of Sr-Hexaferrite Nano Particles Doped With Zn and Ti
, M.Sc. Thesis Sharif University of Technology ; Nemati, Ali (Supervisor) ; Ghasemi, Ali (Supervisor)
Abstract
In this study, the micro and nano particles of substituted strontium hexaferrites with nominal composition of SrFe12-xTix/2Znx/2O19 (x=0, 0.5, 1, 1.5, 2 and 2.5) were prepared by a co-precipitaion method. Ferrite-PVA composites (70:30) with thickness of 1.8mm were prepared at 220°C and 50Mpa. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FE-SEM), energy dispersive spectrometer (EDS), vibrating sample magnetometer (VSM) and vector network analyzer (VNA) were employed for characterization of synthesized powders and composites. XRD and FTIR results showed that single phase hexaferrite were obtained for almost all of the...