Sintesis dan Karakterisasi Kalsium Ferit Menggunakan Pasir Besi dan Batu Kapur

Abstract

Sintesis Kalsium Ferit telah dilakukan dengan metode  pencampuran basah menggunakan Fe₂O₃ hasil sintesis dari pasir besi dan CaCO₃ dari batu kapur alam. Dalam penelitian ini digunakan variasi suhu sinter, variasi waktu sinter dan variasi perbandingan mol Fe³⁺/Ca²⁺. Hasil sintesis dikarakterisasi dengan DTA/GTA, XRD  dan SEM-EDX. Sampel dengan perbandingan mol Fe³⁺/Ca²⁺ 6 pada pemansan 800⁰C selama 3 jam menghasilkan 100% Ca-Fe-O dengan 28,81% CaFe₄O₇, 24,57% Ca₂Fe₉O₁₃, dan 46,62% Ca₄Fe₁₄O₂₅. Pada sampel variasi suhu sinter dan variasi waktu sinter sampel dengan perbandingan mol Fe³⁺/Ca²⁺ 12 tidak mengalami perubahan yang signifikan. Namun, hasil perbandingan dari ketiga variasi menunjukkan terbentuknya Fe₂O₃ tertinggi pada suhu sinter 900⁰C.

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