Effects of Mixture Components on Sialon Composition Homogeneity on Synthesis from Kaolins

Effects of Mixture Components on Sialon Composition Homogeneity on Synthesis from Kaolins

Carbothermal reduction has been combined with nitriding of kaolin with various free SiO^sub 2^ contents in the presence of additional silicon-bearing components under experimental industrial conditions to make β-sialons with Z = 0.73-3.78. It is possible to make a sialon with a given Z by means of a...

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Bibliographic Details
Published in:Powder metallurgy and metal ceramics Vol. 43; no. 3-4; pp. 211 - 217
Main Authors: Vinokurov, V B, Grigor'ev, N, Bega, N D, Klimenko, L I
Format: Journal Article
Language:English
Published: New York Springer Nature B.V 01-03-2004
Subjects:
Composition effects
Diffraction
Homogeneity
Inhomogeneity
Kaolin
Raw materials
Sialons
Silicon dioxide
Online Access:Get full text
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Summary:Carbothermal reduction has been combined with nitriding of kaolin with various free SiO^sub 2^ contents in the presence of additional silicon-bearing components under experimental industrial conditions to make β-sialons with Z = 0.73-3.78. It is possible to make a sialon with a given Z by means of additional silicon-bearing components, and also a sialon with Z = 2 directly from raw material kaolin. X-ray diffraction indicates that the composition inhomogeneity in the sialon is dependent on the content of free SiO^sub 2^ in the mixture.[PUBLICATION ABSTRACT]
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ISSN:1068-1302
1573-9066
DOI:10.1023/B:PMMC.0000035713.25465.fb