Effect of different Fuel Combination on Structure and Properties of M Type Hexaferrite BaZn_(0.2)Zr_(0.2)Fe_(11.6)O_(19)

摘要

The aim of this work is to investigate the effect of different fuel on M type barium hexaferrite structure and properties. During present work, we have synthesized a BaZn_(0.2)Zr_(0.2)Fe_(11.6)O_(19) using sol-gel auto combustion route by using different fuel combination (citric acid-ammonia, citric acid- ethylene glycol and tartaric acid-ammonia). BaZn_(0.2)Zr_(0.2)Fe_(11.6)O_(19) were characterized by XRD, VSM, EDX and SEM. The influence of different fuels were reflected on the morphology of crystallites, size as well as on their magnetic properties. The sample prepared by tartaric acid as fuel has the highest saturation magnetization (M_s) and that with citric acid-ammonia sample has the highest coercivity(H_c).