Sintesis dan Karakterisasi Sifat Magnetik Serbuk Barium M-Heksaferrit dengan Doping Ion Zn pada Variasi Temperatur Rendah
Abstract
Sintesis Barium M-Heksaferrit (BaFe11,4Zn0,6O19) doping ion Zn telah dilakukan dengan metode kopresipitasi. Bahan yang digunakan dalam sintesis yaitu BaCO3, FeCl3.6H2O dan ion Zn. Dalam penelitian ini digunakan variasi suhu kalsinasi pada temperatur rendah yaitu 80oC, 150oC, 200oC dan 280oC selama 4 jam. Hasil sintesis dikarakterisasi dengan DSC-TGA (Differential Scanning Calorimetry – Thermogravimetric), XRD (X-ray Diffraction), SEM (Scanning Electron Microscopy) dan VSM (Vibrating Sample Magnetometer). Barium M-Heksaferrit terbentuk pada temperatur 150oC sebesar 72,54% dan mempunyai ukuran partikel sebesar 0,5μm. Kurva histerisis menunjukkan telah terbentuk softmagnetic dengan magnetisasi remanensi (Mr) sebesar 0,01 emu/gr, medan koersivitas (Hc) sebesar 0,00825 Tesla dan mempunyai magnetisasi tertinggi terjadi ketika medan koersivitas (Hc) sebesar 1 Tesla dengan magnetisasi sebesar 0,55 emu/gr.
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