Artikel Jurnal :: Kembali

Artikel Jurnal :: Kembali

The use of the rietveld method to study the phase composition of cordierite (Mg 2 Al 4 Si 5 O 18 ) ceramics prepared from rice husk silica

Wasinton Simanjuntak, Simon Sembiring (Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Lampung, 2011)

 Abstrak

This research presents the use of the Rietveld method to study the phase composition of cordierite (MG2AL4SI5O18) ceramics prepared from rice husk silica, after the samples were sintered at 1300, 1400 and 1500 °C. The formation of cordierite is temperature-dependent as indicated by the relative phase composition obtained from x-ray diffraction patterns for the cordierite and spinel increased markedly with
increasing temperature, i.e, from 38.98 to 54.15 wt% and from 11.81 to 17.99 wt % following the increase in temperature from 1300-1500 °C, respectively. The above values
were obtained with the aid of the Rietveld method, carried out until the goodness of fit values (GoF) reached below 2, which is considered a satisfactory value to reveal the real phase composition. Different plots produced by refinement using the Rietveld method also reveal a reasonable fit between the observed and the calculated plot, demonstrating the usefulness of the method for calculating the quantity of phase composition in the sintering process.

 Metadata

Jenis Koleksi : Artikel Jurnal
No. Panggil : J-Pdf
Entri utama-Nama orang :
Entri tambahan-Nama orang :
Subjek :
Penerbitan : Lampung: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Lampung, 2011
Sumber Pengatalogan : LibUI eng rda
ISSN : 23391995
Majalah/Jurnal : Makara : Sains
Volume : Vol. 15, No. 1, April 2011: 97-100
Tipe Konten : text
Tipe Media : unmediated
Tipe Carrier : volume
Akses Elektronik : http://journal.ui.ac.id/index.php/science/article/view/886/845
Institusi Pemilik : Universitas Indonesia
Lokasi : Direktorat Riset dan Pengabdian Masyarakat UI
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No. Panggil No. Barkod Ketersediaan
J-Pdf 03-19-766592701 TERSEDIA
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Tidak ada ulasan pada koleksi ini: 20326496
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