Active gaseous corrosion of porous silicon carbide

Journal Article · Mon Feb 01 04:00:00 EST 1993 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1993.tb03785.x· OSTI ID:6301136

Sickafoose, Jr, R R ^[1]; Readey, D W ^[2]

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1. Ohio State Univ., Columbus, OH (United States). Dept. of Materials Science and Engineering
2. Colorado Center for Advanced Ceramics, Golden, CO (United States). Colorado School of Mines

In a reducing atmosphere, SiO[sub 2] as an impurity in SiC can react to form SiO and CO gases. Likewise, oxygen in the atmosphere can also lead to the same gaseous species. Experimental data are reported on the rate of weight loss in H[sub 2]-H[sub 2]O atmospheres of porous SiC containing residual SiO[sub 2]. The amount of residual SiO[sub 2] was varied by passive oxidation of the porous SiC prior to heating in the reducing atmosphere. The data are compared to a model of active corrosion to determine the mechanism of weight loss and to identify the gas species present in SiC with SiO[sub 2] as an impurity.

• OSTI ID: 6301136
• Journal Information: Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 76:2; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360205* -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
CARBIDES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CORROSIVE EFFECTS
DATA
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
GASES
IMPURITIES
INFORMATION
KINETICS
MATHEMATICAL MODELS
NONMETALS
NUMERICAL DATA
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
POROSITY
REACTION KINETICS
REDUCTION
SILICON CARBIDES
SILICON COMPOUNDS
SILICON OXIDES