CD Skripsi

Pengaruh Doping Tembaga Terhadap Parameter Loop Hysteresis Dan Komposisi Partikel Magnetik Pasir Alam Logas

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The effect of copper doping on loop hysteresis parameters and elemental
composition of iron oxide nanoparticles from Logas natural sand, Kuantan
Singingi Regency, Riau Province prepared using ball milling has been
investigated. Prior to ball milling process, this natural sand was processed using
Iron Sand Separator (ISS) and Neodynium Iron Boron (NdFeB) magnets in order
to separate between iron and non iron oxide particles. This product is called the
NdFeB product. The NdFeB product was milled using ball milling for 3 stages.
The product of each stage was processed by NdFeB. The last product of ball
milling is called BM 3. The BM 3 product was divided into 5 parts with equal
weight (wt) and then each of them was doped using copper (Cu) with
concentration of 0 wt.%, 5 wt.%, 10 wt.%, 15 wt.% and 20 wt.% using ball
milling for 20 hours and the products are called BM4A, BM4B, BM4C, BM4D
and BM4E, respectively. The magnetic susceptibility of the BM4 products was
measured using Pasco magnetic probe. The resulting magnetic susceptibility of
the samples decreases with increasing the copper concentration. The hysteresis
loops of the selected samples namely BM4A, BM4B and BM4C were obtained
from vibration sample magnetometer (VSM). Based on the hysteresis loops of the
samples it was found that the value of saturation magnetization (Ms) desreases
while coercivity (Hc) and loop quareness (Mr/Ms) increases with increasing
doping concentration. However, the value of remanent magnetization (Mr), and
loop area (A) varies as doping concentration increases. Elemental composition of
the samples was determined using X-Ray Fluorescence (XRF). The results
showed that the amount of copper element increased with increasing doping
concentration from 0.008% before doping (0 wt% Cu) to 11.684% after doping
(5 wt% Cu), while other elements such as Si, Ti, Al, Ca decreases.
Keywords: Natural sand, ball milling, copper doping, hysteresis loops, and
elemental composition.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

03 01.122 (0018)

Penerbit

Pekanbaru : Universitas Riau – FMIPA – FISIKA., 2022

Deskripsi Fisik

xvii, 52 hlm.: ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

03 01.122 (0018)

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

ELFITRA

Versi lain/terkait

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