Effect of Sintering Atmospheres on the Processing of SiC/AlN Ceramic Composites
Besisa, Dina H. A.; Ewais, Emad M. M.; Ahmed, Yasser M. Z.; I. El-hosiny, fouad; Fend, Thomas; Kuznetsov, D. V.;
Abstract
© 2018, Springer Science+Business Media, LLC, part of Springer Nature. In an attempt to provide a new advanced carbide/nitride ceramic material with high sinterability and density for high-temperature and solar energy applications, this work inspected the effect of different sintering atmospheres on the processing of near-fully dense SiC/AlN ceramic composites. Several SiC/AlN (0 – 40 wt.%) composites were produced by pressureless sintering at a temperature of 2080°C for 2 hrs using a sintering additive of 2.5% yttria + alumina. Influences of argon/vacuum and nitrogen/vacuum atmospheres on the reaction response and the densification behavior of SiC/AlN composites were examined and analyzed. Results show that sintering of SiC/AlN ceramics in a nitrogen atmosphere increases mass loss of the different composites during sintering and leads to a decrease in their densification parameters. However, sintering in an argon atmosphere promotes both the sintering and densification processes, making argon atmosphere more convenient for sintering SiC/AlN ceramics. The use of SiC/AlN composites prepared by pressureless sintering is suitable for high-temperature applications.
Other data
Title | Effect of Sintering Atmospheres on the Processing of SiC/AlN Ceramic Composites | Authors | Besisa, Dina H. A. ; Ewais, Emad M. M. ; Ahmed, Yasser M. Z. ; I. El-hosiny, fouad ; Fend, Thomas ; Kuznetsov, D. V. | Issue Date | 2018 | Journal | Refractories and Industrial Ceramics | DOI | 5 https://api.elsevier.com/content/abstract/scopus_id/85044047487 552 58 10.1007/s11148-018-0143-2 |
Scopus ID | 2-s2.0-85044047487 |
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