Ditemukan 2 dokumen yang sesuai dengan query
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One basic problematic aspect in x-ray diffraction phase analysis is microabsorption effect which may arise from the size
of the crystallite phases. Complication of the problem may intensify in sintered ceramic materials where milling of the
samples is not simple. We report the Rietveld x-ray diffraction phase analysis of MgO--Al2O3 powder mixtures with
phase content ratio of 1:1 by weight and MgO-Y2O3 sintered ceramic composites with Y2O3 contents of 10%, 20% and
30% by weight. The mixtures were pre-sintered ...
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Lembaga Penelitian Universitas Indonesia, 2007
Artikel Jurnal Universitas Indonesia Library
Simanjuntak, Wasinton
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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 ...
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Lampung: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Lampung, 2011
J-Pdf
Artikel Jurnal Universitas Indonesia Library
