Physicomechanical properties of refractory Al2O3–Si3N4–C materials with ACPC

A study has been made on the effects of the amount of silicon nitride and graphite on the physicomechanical properties of Al 2 O 3 –Si 3 N 4 –C composites for lining purposes. Adding 2.5–5.0 wt.% silicon nitride and 0.5 wt.% reactive alumina improves the properties, raises their apparent density, an...

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Published inRefractories and industrial ceramics Vol. 50; no. 5; pp. 387 - 390
Main Authors Angolenko, L. A., Semchenko, G. D., Starolat, E. E., Savina, S. A., Kushchenko, M. A., Tishchenko, S. V., Povshuk, V. V.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.09.2009
Springer Nature B.V
Subjects
Ceramics
Ceramics industry
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Glass
Materials Science
Natural Materials
Silicon nitride
reactive alumina
refractory mass
silicon nitride
graphite
aluminum-chromium phosphate cement
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Summary:A study has been made on the effects of the amount of silicon nitride and graphite on the physicomechanical properties of Al 2 O 3 –Si 3 N 4 –C composites for lining purposes. Adding 2.5–5.0 wt.% silicon nitride and 0.5 wt.% reactive alumina improves the properties, raises their apparent density, and increases the mechanical strength, while reducing the open porosity. Optimized compositions have been determined for refractory materials of Al 2 O 3 –Si 3 N 4 –C composition, and it has been found that to attain the higher values of physicomechanical properties the amount of graphite should constitute 5–10 wt.%.
ISSN:1083-4877
1573-9139
DOI:10.1007/s11148-010-9220-x