Synthesis of Al4SiC4 from Alumina, Silica and Graphite
Source abstract
Abstract
Al4SiC4 has been reported to be a good additive for carbon-containing refractories. The present study investigated various factors influencing the synthesis of Al4SiC4 by heating mixtures of Al2O3, SiO2 and graphite in an argon atmosphere. The formation of Al4SiC4 began from a temperature between 1450°C and 1500°C. The formed quantity of Al4SiC4 increased as the heating temperature was raised. As the heating time was extended, the Al4SiC4 increased to its greatest amount and then it hardly changed. SiC and Al4O4C were also formed as mediums and were decreased as the heating time was extended. The optimum molar ratio of C, Al2O3 and SiO2 was 8:2:0.8 and at that time pure Al4SiC4 was formed. The formation mechanism of Al4SiC4 was also discussed.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Aluminum Alloys Composites Properties · Bauxite Residue and Utilization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Okayama Ceramics Research Foundation
School of Material Science and Engineering, University of Science and Technology
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