DefinePK

Abstract

One of the chemical compounds that have multiferroic properties is BiFeO3. The multiferroic properties of the material would be better if the material has good magnetic properties as well. To obtain a high magnetic properties, the engineering process is carried out to synthesis BiFe1-xZnxO3 (x = 0.1 and 0.07) by doping Zn into BiFeO3 compound. Engineering process performed by sol-gel method. Calcinations in sol-gel method is carried out at a temperature of 150 and 175oC for 4 hours and the sintering process at a temperature of 650oC for 2, 4 and 6 hours. Characterization of the powder is modified done by using TGA / DTA test, X-Ray Diffraction (XRD) test and magnetic properties (Vibrating Sample Magnetometer) test. From the results of TGA / DTA test, it could be seen that the calcinations process could be performed at temperatures of 150 and 175oC and sintering process could be carried out at a temperature of 650oC. From the result of XRD test, it is shown that the powder of BiFe0.93Zn0.07O3 has minimum impurities (bismite 2.9% and iron 3.6%) at calcinations temperature of 175oC for 4 hours and sintering at 650oC for 6 hours. But the most excellent magnetic properties belongs to powder of BiFe0.9Zn0.1O3 with the value of magnetic polarization saturation of 0.65 emu/gram, while the value of magnetic polarization saturation for BiFe0.93Zn0.07O3 is 0/45 emu/gram.