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Candra Kurniawan
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Pengaruh Aditif Ferro Boron (FeB) terhadap Karakteristik Serbuk Hematit (α-Fe2O3) Suci Pangestuti; Pulung Karo Karo; Parmadean Subayang; Candra Kurniawan
Jurnal Teori dan Aplikasi Fisika Vol 5, No 2 (2017): Jurnal Teori dan Aplikasi Fisika
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v5i2.1810

Abstract

The study about effect of ferro boron (FeB) additive towards characteristic of hematite (α-Fe2O3) powder has been done. The powders of FeB andα-Fe2O3 was milled with dry milling method using  Planetary Ball Mill (PBM) for 12 hours. Variation of FeB compositions are 4 and 8 wt.%. The milled powder was calcinedat temperatures of  900, 1000 and 1100oC. The characterization of the powders was performed by Particle Size Analyzer (PSA), true density, X-Ray Diffraction (XRD) and Vibrating Sample Magnetometer (VSM). The results effect of additives FeB showed an increasing of  particle size which related to decrease of true density of  sample  8 wt.% composition with a value 2.80 μm and 2.47 g / cm3. Respectively the  XRD characterization of sample with 8 wt.%composition with the calcination temperature of 1000 and 1100 °C showed that  iron boride (Fe2B)phase was formed. Maghemite (γ-Fe2O3) and magnetite (Fe3O4) was formed during calcination for non-additive sample. The VSM characterization showing the effect of the calcination temperatureare increasing the magnetic properties  and the addition of FeB tends to lower the magnetic properties within  samples before and aftercalcined.
Co-Authors Parmadean Subayang Pulung Karo-Karo Suci Pangestuti