Improvement of Carbon Composite Material Refractoriness Due to Limitation of Surface Oxidation

Improvement of Carbon Composite Material Refractoriness Due to Limitation of Surface Oxidation Ways of improving the refractoriness of carbon-carbon composite materials due to increasing their density and reducing oxidation rate, and in turn due to reducing the combustion surface, are studied. Oxidation heterogeneous reaction surface in an Arrhenius equation expression is considered as the sum of object outer surface and the reaction surface within pores. It is shown that with an apparent density of 1.93 g/cm3 or more surface oxidation at normal pressure and ~500 °C almost corresponds to the nominal object surface. Processing measures are suggested for improving carbon material refractoriness due to an increase in density and changing surface structure by special high-temperature treatment regimes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Improvement of Carbon Composite Material Refractoriness Due to Limitation of Surface Oxidation

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Publisher
Springer US
Copyright
Copyright © 2016 by Springer Science+Business Media New York
Subject
Material Science; Characterization and Evaluation of Materials; Materials Science, general; Ceramics, Glass, Composites, Natural Methods
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1007/s11148-016-9949-y
Publisher site
See Article on Publisher Site

Abstract

Ways of improving the refractoriness of carbon-carbon composite materials due to increasing their density and reducing oxidation rate, and in turn due to reducing the combustion surface, are studied. Oxidation heterogeneous reaction surface in an Arrhenius equation expression is considered as the sum of object outer surface and the reaction surface within pores. It is shown that with an apparent density of 1.93 g/cm3 or more surface oxidation at normal pressure and ~500 °C almost corresponds to the nominal object surface. Processing measures are suggested for improving carbon material refractoriness due to an increase in density and changing surface structure by special high-temperature treatment regimes.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Aug 10, 2016

References

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