0717041041, ISTIYATI (2012) FABRIKASI DAN KARAKTERISASI KERAMIK KALSIUM SILIKAT MENGGUNAKAN BAHAN DASAR CANGKANG TELUR DAN SILIKA KOMERSIAL DENGAN TEKNIK REAKSI PADATAN. Digital Library.
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Abstrak (Berisi Bastraknya saja, Judul dan Nama Tidak Boleh di Masukan)
Abstrak Dalam penelitian ini dilakukan fabrikasi dan karakterisasi keramik kalsium silikat dari bahan dasar cangkang telur dan silika komersial menggunakan teknik reaksi padatan. Sampel kalsium silikat diperoleh dari pencampuran bubuk cangkang telur dan silika komersial menggunakan pelarut etanol. Sampel selanjutnya disintering pada suhu 1000 oC, 1100 oC, 1200 oC dan 1300 oC dan dikarakterisasi menggunakan FTIR, SEM dan XRD serta dilakukan pengujian fisis. Karakterisasi ini bertujuan untuk mempelajari pengaruh suhu sintering terhadap karakteristik gugus fungsi, struktur kristal dan mikrostruktur sampel kalsium silikat. Perlakuan sintering menunjukkan dengan jelas pembentukan kalsium silikat pada empat suhu yang diterapkan. Hasil karakterisasi FTIR menunjukkan bahwa gugus fungsi karbonat hilang pada suhu 1300 oC. Hasil karakterisasi SEM akibat adanya empat perlakuan sintering yang diterapkan menyebabkan butiran-butiran mulai menyatu sehingga butiran berukuran besar, batas butir yang menghilang, pori-pori yang mengecil dan micro cracking. Hasil karakterisasi XRD menunjukkan bahwa pembentukan fasa kalsium silikat terjadi pada setiap suhu. Selanjutnya pengujian fisis yang dilakukan menunjukkan bahwa semakin tinggi suhu sintering yang diterapkan pada sampel maka densitas, shrinkage dan resistivitas sampel kalsium silikat akan semakin meningkat pula. Namun porositas sampel kalsium silikat menurun, hal ini dikarenakan kerapatan butiran-butiran sampel yang semakin meningkat. Kata kunci: kalsium silikat, reaksi padatan, FTIR, SEM, XRD, uji fisis. Abstract In this research fabrication and characterization of calcium silicate ceramics by using raw material of egg shell and silica commercial with a solid state reaction technique was done. Sample of calcium silicate had been made from mixing egg shell powder and silica commercial using ethanol solvent as media. Sample then was sintered at temperature 1000 oC, 1100 oC, 1200 oC and 1300 oC. The characterization was conducted FTIR, SEM and XRD and also evaluation of physical testing such as density, porosity, shrinkage and resistivity. The objective of the result are the effect of heating temperature through characteristic various of bonds structure, structure of cristal and microstructure of calcium silicate samples. The heating treatment showed clearly the formation of calcium silicate applied at fourth temperature. FTIR characterization result showed that the carbonate bonds lost at temperature 1300 oC. SEM characterization was caused by four heating treatment that was apllied causing the grains began to unifying so that the grains have become big sizes, grain boundaries disappeared, pores that became small and occured micro cracking. The result of XRD characterization showed that the formation of calcium silicate phase occured at each temperature. Then evaluation of physical testing showed that if heating temperature that was applied in the sample was higher, it causes density, shrinkage and resistivity will be more increases. However porosity of calcium silicate was decreasesed, this was caused by density of sample that more increase. Key words: calcium silicate, solid state reaction, FTIR, SEM, XRD, physical testing.
| Jenis Karya Akhir: | Artikel |
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| Subyek: | |
| Program Studi: | FAKULTAS MIPA > Prodi Biologi |
| Pengguna Deposit: | IC-STAR . 2015 |
| Date Deposited: | 22 Oct 2015 08:54 |
| Terakhir diubah: | 22 Oct 2015 08:54 |
| URI: | http://digilib.unila.ac.id/id/eprint/13320 |
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