Analysis of Effect of Ag+ Ion on Microstructure and Elemental Distribution of Strontium W-Type Hexaferrites

Nano-sized particles of W-type hexaferrites having chemical composition SrCo2AgxFe16-xO27 (x = 0.0, 0.1, 0.2, 0.3) was synthesized by sol gel auto-combustion technique. The structural, morphological and elemental distribution of synthesized nanohexaferrites was studied by using techniques such as XRD, FESEM, EDS. From the XRD analysis, the crystallite size is found to be in the range of 51-61 nm calculated by using Debye-Scherrer formula which means crystallite size increases with increase in silver concentration. FESEM analysis revealed that grains are hexagonal in shape. The EDS spectra of the prepared samples confirming the formation of pure nanohexaferrites and elemental composition infer that no elements except strontium, cobalt, silver, iron and oxygen are present in the synthesized samples.