Publisher： Trans Tech Publications
E-ISSN： 1662-9795|2018|777|50-54
ISSN： 1013-9826
Source： Key Engineering Materials, Vol.2018, Iss.777, 2018-10, pp. : 50-54
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Abstract
Aluminums doped barium ferrite (BaAlFe11O19) was synthesized by sol gel process at annealing temperatures, Ta, of 700 - 1000 °C and annealing time, ta, of 2 hr. The trend of saturation magnetization, σs, and the product of the magnetization and external magnetic fields, σHmax, increases from Ta = 700 - 900 °C, then decreases. The maximum value of σHmax and coercivity, Hc, are 13194.74 Oeemu/g and 20.33 emu/g, respectively, at Ta = 900 °C. The Hc increases from Ta = 700 - 1000 °C and its maximum value is 4448.80 Oe at 1000 °C. The trend of the crystallize size,
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