PENGARUH WAKTU ANNEALING DAN MOLARITAS LARUTAN TITRASI PADA KOBALT FERIT DOPING STRONTIUM MENGGUNAKAN METODE KOPRESIPITASI

Febriani, Rica Rachmania (2018) PENGARUH WAKTU ANNEALING DAN MOLARITAS LARUTAN TITRASI PADA KOBALT FERIT DOPING STRONTIUM MENGGUNAKAN METODE KOPRESIPITASI. Other thesis, Universitas Sebelas Maret.

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    Abstract

    Dependence of annealing time and titration solution molarity on crystalline structure, oxide bonding and magnetic properties in co-precipitated cobalt ferrite dopping strontium is studied. Strontium dopping is selected 10% of mole composition and annealead at 1000°C. In annealing time variation, X-Ray Diffraction (XRD) characterization results show that the intensity increases with the increase of the annealing time. Fourier Transform Infra-Red (FTIR) result show that metal oxides are observed on wave numbers of about =580 cm-1 and =380 cm-1. The result of Vibrating Sampel Magnetometer (VSM) shows the magnetic characteristic change with the time of annealing. Variation of NaOH solution, the XRD spectral intensity decreases with increasing molarity of NaOH. While the FTIR results show the metal oxide formed around the same wave number as the annealing time variation. The increase of NaOH molarity causes the reduce in the VSM profile. In this study the highest coercive field is obtained 1.74 kOe for molarity 1.5 M.

    Item Type: Thesis (Other)
    Subjects: Q Science > QC Physics
    Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam
    Fakultas Matematika dan Ilmu Pengetahuan Alam > Fisika
    Depositing User: Rifqi Imaduddin Irfan
    Date Deposited: 27 Apr 2018 15:37
    Last Modified: 27 Apr 2018 15:37
    URI: https://eprints.uns.ac.id/id/eprint/40926

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