Pengaruh Temperatur Sintering Terhadap Struktur dan Sifat Magnetik Fe3O4-TiO2 Sebagai Penyerap Gelombang Mikro

Authors

  • Bunga Novia Laboratorium Fisika Material, Jurusan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Andalas
  • Astuti Astuti Laboratorium Fisika Material, Jurusan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Andalas

DOI:

https://doi.org/10.25077/jfu.8.4.368-372.2019

Abstract

Telah dilakukan sintesis nanopartikel Fe3O4-TiO2 dengan bahan baku batu besi dan TiO2. Pembuatan nanopartikel Fe3O4 disintesismenggunakan metode kopresipitasi dan pembuatan komposit Fe3O4-TiO2 disintesis menggunakanmetode solid state reaction. Material komposit Fe3O4-TiO2 dengan variasi sintering 400oC, 500oC, 600oC dan 700oC untuk melihat pengaruh temperatur sintering terhadap struktur dan sifat magnetiknya. Sampel dianalisis ukuran partikel, ukuran kristal, suseptibilitas magnet dan konduktivitas listrik. Sampel yang telah berbentuk pellet dikarakterisasi dengan alat X-Ray Difraction (XRD) dan LCR meter. Sampel yang masih berbentuk serbuk dikarakterisasi menggunakan alat Scanning Electron Microscopy (SEM) dan Bartington Magnetic Susceptibility. Hasil karakterisasi menunjukkan bahwa Fe3O4-TiO2 yang disintering pada temperatur 700oC didapatkan partikel terkecil yaitu berkisar antara 3 nm - 75 nm dan ukuran kristal terkecil 66,63 nm. Nilai suseptibilitas paling tinggi didapatkan 4,2 x 10-8 m3/kg dan nilai konduktivitas listrik adalah 9,44 x 10-7 S/cm.    

Kata kunci :  daya serap gelombang mikro, kopresipitasi, nanopartikel Fe3O4, sintering, solid  state  reaction, titanium dioksida (TiO2).

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Published

2019-11-26

How to Cite

Novia, B., & Astuti, A. (2019). Pengaruh Temperatur Sintering Terhadap Struktur dan Sifat Magnetik Fe3O4-TiO2 Sebagai Penyerap Gelombang Mikro. Jurnal Fisika Unand, 8(4), 368–372. https://doi.org/10.25077/jfu.8.4.368-372.2019

Issue

Vol. 8 No. 4 (2019)

Section

Articles

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Copyright (c) 2019 Bunga Novia, Astuti Astuti

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