High temperature alkali corrosion of ceramics in coal gas. Quarterly progress report {number_sign}9: September 1--December 1, 1993

Technical Report · Wed Dec 01 00:00:00 EST 1993

DOI:https://doi.org/10.2172/10118047· OSTI ID:10118047

Pickrell, G R; Sun, T; Brown, J J

High temperature alkali corrosion has been known to cause premature failure of ceramic components used in advanced high temperature coal combustion systems such as coal gasification and clean-up, coal fired gas turbines, and high efficiency heat engines. The objective of this research is to systematically evaluate the alkali corrosion resistance of the most commonly used structural ceramics including silicon carbide, silicon nitride, cordierite, mullite, alumina, aluminum titanate, zirconia, and fireclay glass. The study consists of identification of the alkali reaction products (phase equilibria) and the kinetics of the alkali reactions.

• Research Organization: Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). Center for Advanced Ceramic Materials
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-91PC91309
• OSTI ID: 10118047
• Report Number(s): DOE/PC/91309-T10; ON: DE94005777; TRN: 94:001599
• Resource Relation: Other Information: PBD: 1 Dec 1993
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
01 COAL, LIGNITE, AND PEAT
CERAMICS
PROGRESS REPORT
CORROSION RESISTANCE
COAL GAS
CHEMICAL REACTION KINETICS
CORROSIVE EFFECTS
PH VALUE
CORROSION PRODUCTS
SILICON CARBIDES
SILICON NITRIDES
MULLITE
ALUMINIUM OXIDES
TITANATES
ZIRCONIUM OXIDES
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
360205
014000
010600
CORROSION AND EROSION
COMBUSTION
PROPERTIES AND COMPOSITION