Pengaruh Temperatur Sintering Terhadap Sifat Magnetik Magnet Barium Ferit (BaFe12O19) Pasir Besi Batang Sukam Kabupaten Sijunjung Sumatera Barat

Authors

  • Muhammad Rizki Laboratorium Fisika Bumi, Jurusan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Andalas
  • Arif Budiman Laboratorium Fisika Bumi, Jurusan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Andalas
  • Dwi Puryanti Laboratorium Fisika Bumi, Jurusan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Andalas

DOI:

https://doi.org/10.25077/jfu.7.1.15-20.2018

Abstract

Telah dilakukan penelitian tentang sintesis magnet ferit menggunakan metode metalurgi serbuk. Penelitian ini bertujuan untuk mengetahui pengaruh temperatur sintering terhadap sifat magnetik barium ferit (BaFe12O19). Barium ferit dibuat dengan cara mencampurkan hematit hasil oksidasi magnetik pasir besi Batang Sukam dengan barium karbonat. Campuran tersebut kemudian dikalsinasi pada temperatur 800 °C, dikompaksi dan disintering pada temperatur 800 °C, 900 °C, dan 1000 °C. VSM (Vibrating Sample Magnetometer) digunakan untuk menentukan sifat magnetik. Hasil VSM menunjukan bahwa pada sampel yang disintering pada temperatur 800 °C memiliki magnetisasi saturasi (Msat) sebesar 10,20 emu/g, magnetisasi remanen (MIRM) sebesar 1,52 emu/g, dan medan koersivitas (HC) sebesar 288,74 Oe. Sampel yang disintering pada temperatur 900 °C memiliki magnetisasi saturasi (Msat) sebesar 4,58 emu/g, magnetisasi remanen (MIRM) sebesar 1,51 emu/g, dan medan koersivitas (HC) sebesar 1433 Oe. Sampel yang disintering pada temperatur 1000 °C memiliki magnetisasi saturasi (Msat) sebesar 4,24 emu/g, magnetisasi remanen (MIRM) sebesar 1,40 emu/g, dan medan koersivitas (HC) sebesar 1466 Oe. Temperatur sintering yang semakin meningkat menghasilkan sampel dengan magnetisasi saturasi yang yang rendah, magnetisasi remanen yang hampir sama dan medan koersivitas yang tinggi.

Kata kunci: perubahan fasa, sintering, barium ferit, Vibrating Sample Magnetometer, magnetisasi saturasi, magnetisasi remanen dan medan koersivitas

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Published

2018-01-03

Issue

Vol. 7 No. 1 (2018)

Section

Articles

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Copyright (c) 2018 Muhammad Rizki, Arif Budiman, Dwi Puryanti

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