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Obtaining of Nanocomposites in SiC-SiAlON and Al<sub>2</sub>O<sub>3</sub>-SiAlON System by Alumothermal Processes
Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia
Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia
Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia
Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia
Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia
Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia
Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia
Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia
- 1 Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia
- 2 Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia
- 3 Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia
- 4 Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia
- 5 Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia
- 6 Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia
- 7 Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia
- 8 Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia
Journal of Electronics Cooling and Thermal Control·Volume 04 (2014)·Pages 105–117·Published 3 December 2014·DOI10.4236/jectc.2014.44012
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Abstract
Composites were obtained in the in SiC-SiAlON and Al 2 O 3 -SiAlON system. Physical-chemical processes going on at the obtaining of SiALON within the range of 800 ° C - 1500 ° C were studied. Charge compositions and sintering regime were selected. It was proved that X-SiALON was obtained at the sintering of kaolin-aluminum powder at 1500 ° C, while β -SiALON was formed at the sintering of SiC-Aluminum powder, silicium and Al 2 O 3 -aluminum powder, silicium at 1500 ° C. Corrosion properties of the materials were studied. Investigations were performed by the methods of X-Ray structural and microscopical analysis.
KeywordsCompositeSilicium CarbideCorundumSilicium NitrideAluminum NitrideMulliteSiALON
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