Composite Stable to Corrosive Media in SiC-AL2O3-Si2ON2 System - Journal of Electronics Cooling and Thermal Control

JECTC > Vol.3 No.2, June 2013

Composite Stable to Corrosive Media in SiC-AL₂O₃-Si_2ON₂ System ()

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DOI: 10.4236/jectc.2013.32009 3,048 Downloads 5,461 Views

Author(s)

Z. D. Kovziridze, N. S. Nizharadze, G. Tabatadze, M. Mshvildadze, E. Nikoleishvili, Z. Mestvirishvili

Affiliation(s)

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

ABSTRACT

The object of the research was to study the composite received in impure nitrogen medium from silicon carbide, silicon and refractory clay mixture. With X-ray diffraction, petrographic and electron microscope methods the chemical processes happening at burning of the mentioned mixture in technical nitrogen medium and the kind of received binder, phase composition and basic properties are studied. It is stated that silicon carbide composite with complex binder is received, the main phases being: Si₂ON₂, 3Al₂O_3·2SiO₂ and SiO₂. SiC-Al₂O₃ composite is also received and studied. Water and acid resistance of composites (H₂SO₄, r—1.84 g/sm³) and resistance to nonferrous metals and slag are studied. The received composites can be used for production of protective envelope of thermocouple for measuring of temperature of ferrous and nonferrous metals at high temperatures.

KEYWORDS

Composite; Silicon Carbide; Nitrogen Area; Silicon Oxynitride; Resistance

Share and Cite:

Kovziridze, Z. , Nizharadze, N. , Tabatadze, G. , Mshvildadze, M. , Nikoleishvili, E. and Mestvirishvili, Z. (2013) Composite Stable to Corrosive Media in SiC-AL₂O₃-Si_2ON₂ System. Journal of Electronics Cooling and Thermal Control, 3, 74-84. doi: 10.4236/jectc.2013.32009.

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