0717041004, BUDIMAN (2012) FABRIKASI DAN KARAKTERISASI KERAMIK KALSIUM SILIKAT MENGGUNAKAN BAHAN KOMERSIAL KALSIUM KARBONAT (CaCO3) DAN SILIKON DIOKSIDA (SiO2) DENGAN TEKNIK REAKSI PADATAN. UNSPECIFIED.
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Abstrak (Berisi Bastraknya saja, Judul dan Nama Tidak Boleh di Masukan)
Abstrak Telah dilakukan pembuatan dan karakterisasi keramik kalsium silikat menggunakan bahan komersial kalsium karbonat (CaCO3) dan silikon dioksida (SiO2) dengan teknik reaksi padatan. Variasi suhu sintering yang digunakan adalah 1000 °C, 1100 °C, 1200 °C dan 1300 °C. Hasil karakterisasi FTIR menunjukkan pembentukan gugus fungsi O-H, C-H, C-O, C=O, Si-O, Si-O-Si, Ca-O, dan Mg-O. Seiring dengan kenaikan suhu sintering beberapa gugus fungsi yang berkaitan dengan gugus hidroksil semakin melemah akibat proses penguapan. Hasil karakterisasi mikrostruktur menggunakan SEM, menunjukkan mineral penyusun dan pori-pori masih terlihat jelas, serta adanya butiran-butiran kecil yang belum menyatu, tetapi dengan kenaikan suhu sintering mineral penyusun menjadi homogen. Hasil karakterisasi XRD, keramik kalsium silikat mengandung mineral akermanite (Ca2MgSi2O7), diopside (CaMg(SiO3)2), quartz (SiO2), dan periclase (MgO). Perubahan suhu sintering menjadikan intensitas setiap fasa berubah. Dengan kenaikan suhu sintering fasa diopside semakin meningkat dan stabil sehingga menjadi dominan. Hasil karakterisasi sifat fisis keramik CS1000 yaitu densitas 1,111 g/cm3, porositas 61,82 %, penyusutan volume 44,211 %, sedangkan keramik CS1100 yaitu densitas 1,218 g/cm3, porositas 58,14 %, penyusutan volume 49,863 %, keramik CS1200 yaitu densitas 1,352 g/cm3, porositas 46,46 %, penyusutan volume 55,515 %, keramik CS1 300 yaitu densitas 1,891 g/cm3, porositas 35,01 %, penyusutan volume 71,559 %. Sedangkan nilai resistifitas keramik CS1 000, CS1100, CS1 200, dan CS1300 yaitu 0,573 x 107 Ωcm, 0,142 x 107 Ωcm, 0,085 x 107 Ωcm, dan 0,049 x 107 Ωcm. Dari hasil nilai resistifitas tersebut, keramik kalsium silikat merupakan bahan isolator yang baik. Kata kunci: kalsium karbonat, kalsium silikat, keramik, FTIR, SEM, XRD. Abstract It was done the preparation and characterization of calcium silicate ceramics using commercial material of calcium carbonate (CaCO3) and silicon dioxide (SiO2) by using solid state reactions. The sintering temperature variations that were used are 1000 °C, 1100 °C, 1200 °C and 1300 °C. The result of characterization FTIR showed the vibration of O-H, C-H, C-O, C=O, Si-O, Si-O-Si, Ca-O, and Mg-O. Along the temperature increasing of sintering some vibrations related to hydroxyl cluster wore away as the result of evaporation process. The result of microstructure characterization by using SEM, showed compiler mineral and pore still seen clearly and there are small grains that have not combined yet, but temperature increasing of sintering compiler mineral turned into homogene. The result of characterization XRD, calcium silicate ceramics contained akermanite mineral (Ca2MgSi2O7), diopside (CaMg(SiO3)2), quartz (SiO2), and periclase (MgO). Sintering temperature alteration made intensity in every phase changed. Thereby, sintering temperature diopside phase more increased and stable, therefore it became dominant. The result of characterization ceramics physical property CS1000 those are density 1,111 g/cm3, porosity 61,82 %, volume reduction 44,211 %, whereas in ceramics CS1100 those are density 1,218 g/cm3, porosity 58,14 %,volume reduction 49,863 %, ceramics CS1200 those are density 1,352 g/cm3, porosity 46,46 %, volume reduction 55,515 %, ceramics CS1300 those are density 1,891 g/cm3, porosity 35,01 %, volume reduction 71,559 %. Whereas the resistifity value of ceramics CS1000, CS1100, CS1200, and CS1300 were 0,573 x 107 Ωcm, 0,142 x 107 Ωcm, 0,085 x 107 Ωcm, and 0,049 x 107 Ωcm. Key words: calcium carbonat, calcium silicate, ceramics, FTIR, SEM, XRD
| Jenis Karya Akhir: | Skripsi |
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| Subyek: | |
| Program Studi: | FAKULTAS MIPA > Prodi Fisika |
| Pengguna Deposit: | IC-STAR . 2015 |
| Date Deposited: | 22 Oct 2015 08:53 |
| Terakhir diubah: | 30 Oct 2015 02:21 |
| URI: | http://digilib.unila.ac.id/id/eprint/13301 |
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