Effect of Sintering Temperature on Structural Property of X-type Barium-Zinc Hexaferrites

摘要

X-type Barium-Zinc hexaferrite powder with chemical composition Ba_2Zn_2Fe_(28)O_(46) has been prepared using citrate gel auto combustion technique. The combusted powder waspre-heated at 550 °C for 4 hours followed by final calcinations of 1100 °C and 1250 °C for 5 hoursrespectively. Prepared hexaferrite samples were characterizedusingdifferent instrumental techniques such as FTIR and XRD. XRD analysis of the sample calcined at 1250 °C revealed formation of mono phase of X-type hexaferrite; while the sample calcined at 1100 °C shows multi-phases of M, W and X-type hexaferrites. FTIR spectra of both samples show stretching of metal-oxide bands.