Research on Composite Stable to Corrosive Media in SiC-AL2O3-Si2ON2 System

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Research on Composite Stable to Corrosive Media in SiC-AL2O3-Si2ON2 System

September 29, 2020 Engineering 0

The goal of the research was to study the composite obtained from silicon carbide, silicon and refractory clay mixture in an impure nitrogen medium. The chemical processes of burning of the aforementioned mixture in the technical nitrogen medium and the form of binder obtained, phase composition and basic properties are studied with X-ray diffraction, petrographic and electron microscope techniques. Composite silicon carbide with complex binder is documented to be obtained, the main stages being: Si2ON2, 3Al2O3·2SiO2 and SiO2. Composite SiC-Al2O3 has also been obtained and researched. Composite water and acid resistance (H2SO4, ~1.84 g / sm3) and non-ferrous metal and slag resistance are being studied. The composites obtained can be used for the development of thermocouple protective envelopes to measure the temperature of ferrous and nonferrous metals at high temperatures.

Author (s) Details

Z. D. Kovziridze
Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia.

N. S. Nizharadze
Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia.

G. Tabatadze
Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia.

M. Mshvildadze
Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia.

E. Nikoleishvili
Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia.

Z. Mestvirishvili
Department of Chemical and Biological Technologies, Georgian Technical University, Tbilisi, Georgia.


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