Iron-bearing silicon nitride composite materials made from powders milled in a planetary mill

Iron-bearing silicon nitride composite materials made from powders milled in a planetary mill The effect of milling in an AGO-3 centrifugal planetary activator with steel milling balls on the properties of Si3N4 powders, the conditions of sintering, and the phase composition, structure, and properties of composite materials based on them is described. The possibility of and the process conditions for obtaining dense shock-resistant composite materials based on preliminarily milled β-Si3N4 (SHS) powder and additives that activate the sintering and consist of AlN, Al2O3, and ZrO2 powders are studied. It is established that in the sintered materials the presence of FeSi formed due to the interaction of Si3N4 and Fe that appears in the milling process does not worsen appreciably the thermomechanical properties of the composite materials. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Iron-bearing silicon nitride composite materials made from powders milled in a planetary mill

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Publisher
Springer US
Copyright
Copyright © 1998 by Plenum Publishing Corporation
Subject
Chemistry; Characterization and Evaluation of Materials; Materials Science; Ceramics, Glass, Composites, Natural Methods
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1007/BF02767891
Publisher site
See Article on Publisher Site

Abstract

The effect of milling in an AGO-3 centrifugal planetary activator with steel milling balls on the properties of Si3N4 powders, the conditions of sintering, and the phase composition, structure, and properties of composite materials based on them is described. The possibility of and the process conditions for obtaining dense shock-resistant composite materials based on preliminarily milled β-Si3N4 (SHS) powder and additives that activate the sintering and consist of AlN, Al2O3, and ZrO2 powders are studied. It is established that in the sintered materials the presence of FeSi formed due to the interaction of Si3N4 and Fe that appears in the milling process does not worsen appreciably the thermomechanical properties of the composite materials.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Nov 26, 2007

References

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