Paper Title:

Synthesis of Ceramic Materials from Waste Residues

Periodical Advances in Science and Technology (Volume 62)
Main Theme 12th INTERNATIONAL CERAMICS CONGRESS PART A
Edited by Pietro VINCENZINI and Jean-François BAUMARD
Pages 16-21
DOI 10.4028/www.scientific.net/AST.62.16
Citation Sabrina Portofino et al., 2010, Advances in Science and Technology, 62, 16
Online since October, 2010
Authors Sabrina Portofino, Sergio Galvagno, Anna De Girolamo Del Mauro, Enzo Calò
Keywords Carbothermal Reduction, Rice Shell, Scanning Electron Microscope (SEM), Silicon Nitride, X-Ray Diffraction (XRD)
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Abstract

In the frame of a wide research program devoted to the matter recovery from waste by means of thermal processes, particular efforts have been put into the study of biomasses and waste residue of peculiar composition, which could be used as precursors of ceramic materials. Rice shells are waste biomasses coming from the purification process of rice, which show a high carbon and silica content. The exploitation of these peculiarity promoted a series of experimental activities, aimed at the production of ceramic materials through high temperature carbothermal synthesis reactions. The synthesis products were characterized by X Ray Diffraction (XRD) and scanning electron microscopy (SEM) and the data confirmed the production of ceramic silicon nitride (Si3N4) at high yield and purity, under the adopted process parameters.