High-temperature corrosion of material based on silicon nitride and exposed to salts

Journal Article · Wed May 01 04:00:00 EDT 1985 · Dokl. Phys. Chem. (Engl. Transl.); (United States)

OSTI ID:7240964

Gogotski, Y G; Frantsevich, I N; Lavrenko, V A

Materials based on silicon nitride or carbide have shown promise for use in manufacturing gas-turbine and diesel engine parts. This paper presents an investigation of the corrosion of a reaction-sintered material based on silicon nitride with the addition of 30% silicon carbide and 2% magnesium oxide, when exposed to melts of sodium chloride, sodium sulfide, or sea salt. The studies show that the material corrodes very little in sea salt or sodium chloride melts, but it is destroyed rapidly in a sodium sulfate melt.

• Research Organization: Polytechnic Institute
• OSTI ID: 7240964
• Journal Information: Dokl. Phys. Chem. (Engl. Transl.); (United States), Journal Name: Dokl. Phys. Chem. (Engl. Transl.); (United States) Vol. 279:1-3; ISSN DKPCA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360205* -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CORROSION
CORROSION RESISTANCE
CORROSIVE EFFECTS
CRYSTALLOGRAPHY
DIESEL ENGINES
ENGINES
GAS TURBINE ENGINES
HALIDES
HALOGEN COMPOUNDS
HEAT ENGINES
HYDROGEN COMPOUNDS
INTERNAL COMBUSTION ENGINES
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MATERIALS
MATERIALS TESTING
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PNICTIDES
SEAWATER
SILICON CARBIDES
SILICON COMPOUNDS
SILICON NITRIDES
SINTERED MATERIALS
SODIUM CHLORIDES
SODIUM COMPOUNDS
SODIUM SULFATES
SULFATES
SULFUR COMPOUNDS
TEMPERATURE EFFECTS
TESTING
WATER