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Synthesis and characterization of cordierite precursor derived by semi-colloidal sol-gel route
G PAHARI, , T K PARYA
Published in SCIENTIFIC PUBL-INDIA
2019
Volume: 96
   
Issue: 3
Pages: 369 - 373
Abstract
Microfine cordierite precursor powder of stoichiometric chemical composition, 2MgO center dot 2Ao(2)O(3).5SiO(2), can be synthesized by semi colloidal route using dehydroxylated china clay, precipitated silica, magnesium hydroxide. The derived cordierite precursor is characterized by chemical analysis, BET surface area, particle size distribution, differential thermal analysis (DTA), FTIR spectroscopy, TG-DTA analysis, X-ray diffraction (XRD) and scanning electron microscopy (SEM) studies. The study reveals that crystallization of mu-cordierite from amorphous precursor starts at 900 degrees C as confirmed by differential thermal analyses, X-ray. The SEM studies of the precursor calcined at 900 degrees C focuses the uniform distribution of platelike particles in the size ranges of 0.5-4 mu m.
About the journal
JournalJournal of the Indian Chemical Society
PublisherSCIENTIFIC PUBL-INDIA
ISSN0019-4522