CD Skripsi

Pengaruh Variasi Ukuran Bola Milling Terhadap Sifat Magnetik Dan Morfologi Partikel Pasir Alam Sungai Rokan

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ABSTRACT
The magnetic susceptibility, loop hysteresis and morphology properties of natural sand from the Rokan river, Riau Province have been investigated with variations in milling ball size. Magnetic and non-magnetic particles in natural sand were separated using an Iron Sand Separator prior to the ball milling process with a time of 80 hours using iron balls which were varied, namely 1 cm, 2 cm and 3 cm, and the products are named Products BM I, BM II, and BM III. The results of ball milling were then separated using Neodymium Iron Boron (NdFeB) magnets. Magnetic susceptibility was determined based on the magnetic induction value of the solenoid which was measured using the Pasco PS-2162 Magnetic Probe sensor. The results show that the magnetic susceptibility values of BM I, BM II, and BM III products increas with increasing ball size, namely 12906,293x10−5, 13390,387x10−5, and 14816,736x10−5 for 1 cm, 2 cm and 3 cm milling ball sizes. The magnetic properties are shown by hysteresis loop using a Vibrating Sample Magnetometer (VSM). The results of the VSM test based on the hysteresis loop showed that the magnetic properties of the BM I, BM II, and BM III products, namely the remanent magnetization (Mr) decrease by 0,447 emu/g, 0.348 emu/g, and 0.267 emu/g, and the coercivity (Hc) increases, namely 137,74 Oe, 287,978 Oe, 340,185 Oe. The saturation magnetization (Ms) increases by 2,281 emu/g, 2,894 emu/g, and 4,723 emu/g with increasing milling ball size. Scanning Electron Microscope with Energy Dispersive X-Ray (SEM-EDX) was used to determine the morphological properties and elemental content contained in iron oxide particles. SEM test results show the changes in particle size are obtained smaller as the size of the milling balls increase, namely 378,18 nm, 298,12 nm, and 255,56 nm. The EDX identification results showed that Fe increases from 16,24% to 22,68%, while the non-magnetic element Si decrease from 24,49% to 18,76%.
Keyword : Sand, Magnetic Susceptibility, and Particle Morphology

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1903110017

Penerbit

Pekanbaru : Universitas Riau - FMIPA - Fisika., 2023

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1903110017

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

FISIKA

Info Detail Spesifik

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Pernyataan Tanggungjawab

TIAR

Versi lain/terkait

Lampiran Berkas

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