Pengaruh Penambahan Silika (SiO2) dan Suhu Pembakaran Terhadap Karakteristik Keramik Kordierit Berbasis Abu Sekam Padi
DOI:
https://doi.org/10.25077/jfu.13.1.54-60.2024Keywords:
Diffraction, Keramik, Kordierit, SilikaAbstract
Telah dilakukan sintesis dan karakterisasi keramik kordierit dengan menggunakan silika dari abu sekam padi. Tujuan penelitian ini dilakukan untuk mengetahui penambahan massa silika dan suhu pembakaran terhadap kerakteristik keramik kordierit dari abu sekam padi. Penelitian ini dilakukan dengan pembentukan silika dilakukan dengan pembakaran sekam padi pada suhu 700 °C selama 3 jam dengan penambahan NaOH 4M untuk membentuk silika gel. Sintesis keramik kordierit perbandingan massa 14% Magnesium oksida, 35% Alumina, dan 51% Silika dari abu sekam padi dangan metode solid state dengan pemanasan pada suhu (700, 800 dan 900) °C. Karakteristik sampel dilakukan menggunakan uji XRD dan untuk mengetahui nilai kekerasan digunakan microhardness tester. Selain itu dilakukan analisis sifat fisis kordierit meliputi pengukuran susut bakar, densitas dan porositas. Nilai susut bakar dan densitas mengalami kenaikan seiring dengan penambahan massa silika dan suhu pembakaran, kecuali pada suhu 700 °C dengan penambahan 10% silika nilai susut bakar menurun dan pada suhu 900 °C dengan penambahan 10% silika nilai densitas juga menurun. Penambahan massa silika dan kenaikan suhu pembakaran membuat nilai porositas semakin meningkat kecuali pada suhu 900 °C dengan penambahan 15% silika mengalami penurunan sebesar 20,65 %. Penambahan silika menurunkan nilai kekerasan keramik kordierit, sehingga dengan meningkatnya suhu kalsinasi maka nilai kekerasan juga menurun, kecuali pada sampel tanpa silika pada suhu 800°C. Berdasarkan hasil XRD tanpa penambahan silika pada suhu 700 °C diperoleh ukuran kristal sebesar 108,58 nm, dan pada suhu 900 °C dengan penambahan 10% silika sebesar 374,74 nm.References
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Cibro, L. P. H., & Mora, M. (2020). Pengaruh Massa Magnesium Oksida (MgO) dan Alumina (Al2O3) Terhadap Karakteristik Keramik Kordierit dari Abu Vulkanik Gunung Sinabung. Jurnal Fisika Unand, 9(3), 292–298. https://doi.org/10.25077/jfu.9.3.292-298.2020.
Dahliana, D., Sembiring, S., & Simanjuntak, W. (2016). Pengaruh Suhu Sintering Terhadap Karakteristik Fisis Komposit MgO-SiO2 Berbasis Silika Sekam Padi. JURNAL Teori dan Aplikasi Fisika, 01(01), 1–4.
Li, Y., Cheng, X., Zhang, R., Wang, Y., & Zhang, H. (2015). Effect of excess MgO on the properties of cordierite ceramic sintered by solid-state method. International Journal of Applied Ceramic Technology, 12(2), 443–450. https://doi.org/10.1111/ijac.12174.
Mawarty, N. E., Sembiring, S., & ... (2018). Karakteristik Kekerasan dan Struktur Kristal Cordierite Berbasis Silika Sekam Padi dengan Penambahan Alumina (0, 20, 25, dan 30 wt%). Jurnal Teori dan …, 06(01), 83–90. https://jurnal.fmipa.unila.ac.id/index.php/jtaf/article/view/1829.
Mirna, Iqbal, H., & Kasman. (2017). Analisis Sifat-sifat Fisik Keramik Berbahan Tambahan Abu Ampas Tebu dan Abu Sekam Padi. Gravitasi, 16(2), 10–16.
Yusandika, A. D. (2016). Sintesis Keramik Coerdierite Berbasis Silika Sekam Padi Sebagai Material Isolator Listrik. Jurnal Ilmiah Pendidikan Fisika Al-Biruni, 5(2), 161–172. https://doi.org/10.24042/jpifalbiruni.v5i2.116.
Annisa, R. A., Simon, S., & Wasinton, S. (2017). Karakteristik Termal (DTA/TGA) dan Konduktivitas Termal Kordierit (2MgO.2Al2O3.5SiO2) Berbasis Silika Sekam Padi Akibat Penambahan MgO (0, 10, 15%berat). Majalah Ilmiah Fisioterapi Indonesia, 5(3), 1–4.
Cibro, L. P. H., & Mora, M. (2020). Pengaruh Massa Magnesium Oksida (MgO) dan Alumina (Al2O3) Terhadap Karakteristik Keramik Kordierit dari Abu Vulkanik Gunung Sinabung. Jurnal Fisika Unand, 9(3), 292–298. https://doi.org/10.25077/jfu.9.3.292-298.2020.
Dahliana, D., Sembiring, S., & Simanjuntak, W. (2016). Pengaruh Suhu Sintering Terhadap Karakteristik Fisis Komposit MgO-SiO2 Berbasis Silika Sekam Padi. JURNAL Teori dan Aplikasi Fisika, 01(01), 1–4.
Li, Y., Cheng, X., Zhang, R., Wang, Y., & Zhang, H. (2015). Effect of excess MgO on the properties of cordierite ceramic sintered by solid-state method. International Journal of Applied Ceramic Technology, 12(2), 443–450. https://doi.org/10.1111/ijac.12174
Mawarty, N. E., Sembiring, S., & ... (2018). Karakteristik Kekerasan dan Struktur Kristal Cordierite Berbasis Silika Sekam Padi dengan Penambahan Alumina (0, 20, 25, dan 30 wt%). Jurnal Teori dan …, 06(01), 83–90. https://jurnal.fmipa.unila.ac.id/index.php/jtaf/article/view/1829
Mirna, Iqbal, H., & Kasman. (2017). Analisis Sifat-sifat Fisik Keramik Berbahan Tambahan Abu Ampas Tebu dan Abu Sekam Padi. Gravitasi, 16(2), 10–16.
Yusandika, A. D. (2016). Sintesis Keramik Coerdierite Berbasis Silika Sekam Padi Sebagai Material Isolator Listrik. Jurnal Ilmiah Pendidikan Fisika Al-Biruni, 5(2), 161–172. https://doi.org/10.24042/jpifalbiruni.v5i2.116
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