THE STRUCTURE OF BARIUM M-HEXAFERRITES NANOPOWDERS USING CO-PRECIPITATION METHOD
Susilawati and Aris Doyan
Physics Education, FKIP, University of Mataram, Lombok, West Nusa Tenggara Indonesia
Abstract
Barium M-hexaferriteswas synthesized with Co-Ni doping ion BaFe12-2xCoxNixO19) based on natural iron sand of Loang Balok beach in Sekarbela Subdistrict of Mataram Indonesia to be applied as micro wave absorbent material by using co precipitation method. To increase the effect of doping ion concentration variation (x = 0,0., 0,6 and 1,0) and calcinations temperature (T = 80, 600, and 800oC) on structure properties in samples was done by XRD (X-Ray Diffraction), SEM (Scanning Electron Microscopy) -EDX, TEM. Characterization of XRD showed in samples of iron oxide barium phase (BaFe12O19) and hematite phase (Fe2O3). The SEM-EDX results in the BaFe12CoNiO19 sample showed that the sample size had reached the nano-size ranging from 41nm to 151nm which was evenly distributed with the composition Ba = 12.22%; Fe = 49.1%; Co = 8.78%; Ni = 4.76%; And O = 21.37% with a slight impurity of Cl 3.77% whereas the TEM results show the resulting structure is hexagonal.
Keywords: Barium M-hexaferrites, Structure, nanopowder, co-precipation
Topic: Magnetic Methods