Hanifah, Endang Nur (2025) Pembentukan Larutan Padat (Zr,Fe)SiO4 Melalui Proses Ball Milling: Studi Pengaruh Waktu Penggilingan Terhadap Struktur Dan Mikrostruktur. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pengolahan dan modifikasi struktur zirkonium silikat (ZrSiO₄) menjadi tantangan utama dalam meningkatkan reaktivitasnya, terutama melalui doping ion logam seperti Fe. Hambatan utama dalam proses ini adalah keterbatasan difusi ion asing ke dalam kisi kristal ZrSiO₄. Penelitian ini bertujuan mengeksplorasi kemungkinan pembentukan larutan padat (Zr,Fe)SiO₄ melalui proses ball milling energi sedang, serta mengamati pengaruh variasi waktu penggilingan terhadap karakteristik mikrostruktur. Setelah dikeringkan, sebagian sampel digunakan untuk penggilingan lanjutan dengan variasi waktu 10, 20, 30, 40, dan 50 jam, dengan penambahan alkohol tambahan di awal setiap sesi penggilingan. Sampel hasil penggilingan kemudian dikalsinasi pada 900°C selama 3 jam dan dikarakterisasi menggunakan XRD serta DTA/TGA. Hasil menunjukkan bahwa peningkatan waktu penggilingan menyebabkan penurunan ukuran kristalit dan peningkatan regangan kisi, yang berpotensi memfasilitasi integrasi ion Fe³⁺ ke dalam struktur ZrSiO₄. Berkurangnya intensitas puncak fasa Fe₂O₃ pada XRD pascakalsinasi mengindikasikan bahwa penggilingan berperan penting dalam proses doping, meskipun konfirmasi keberhasilan integrasi ion dopan ke dalam kisi masih memerlukan karakterisasi lanjutan.
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The modification of zirconium silicate (ZrSiO₄) structure remains a major challenge in enhancing its reactivity, particularly through the doping of metal ions such as Fe. A key obstacle in this process is the limited diffusion of foreign ions into the ZrSiO₄ crystal lattice. This study aims to explore the potential formation of a solid solution (Zr,Fe)SiO₄ via medium energy ball milling, and to investigate the effect of milling time variation on the material’s microstructural characteristics. After drying, part of the sample was subjected to extended milling with durations of 10, 20, 30, 40, and 50 hours, with additional alcohol introduced at the beginning of each session. The milled samples were then calcined at 900°C for 3 hours and characterized using XRD and DTA/TGA. Results showed that longer milling times led to reduced crystallite size and increased lattice strain, potentially facilitating the incorporation of Fe³⁺ ions into the ZrSiO₄ structure. The decreasing intensity of Fe₂O₃ peaks in the post-calcination XRD patterns suggests that milling plays a significant role in the doping process, although further characterization is needed to confirm the successful incorporation of Fe into the crystal lattice.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Zirkonium silikat, doping Fe, ball milling, mikrostruktur, XRD, Zirconium silicate, Fe doping, ball milling, microstructure, XRD. |
| Subjects: | Q Science > QC Physics > QC610.3 Electric conductivity |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Endang Nur Hanifah |
| Date Deposited: | 24 Jul 2025 09:01 |
| Last Modified: | 24 Jul 2025 09:01 |
| URI: | http://repository.its.ac.id/id/eprint/121328 |
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