Chemical and physical stability of refractories for use in coal gasification. Thirteenth quarterly progress report, May 1-July 31, 1979

Technical Report · Tue Jul 31 04:00:00 EDT 1979

DOI:https://doi.org/10.2172/5957099· OSTI ID:5957099

Fakhr, A.; Day, D. E.

Various refractories have been exposed in pure steam and other atmospheres at pressures up to 1000 psia for 10 days with the flexural strength being measured before and after exposure. Cement-bonded castables and calcium aluminate cements were exposed to liquid water and saturated water vapor at 1000 psia. All the dense alumina castables had higher strength after exposure to either the saturated vapor or the liquid than their controls. This result has been attributed to the formation of additional bonding phase(s). Other measurements on these specimens are reported. Chemical reactions are proposed to explain the results. (LTN)

• Research Organization: Missouri Univ., Rolla (USA)
• OSTI ID: 5957099
• Report Number(s): COO-2904-13
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
36 MATERIALS SCIENCE
360205 -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
COAL GASIFICATION
COAL GASIFICATION PLANTS
COHERENT SCATTERING
CORROSION
CORROSION RESISTANCE
DIFFRACTION
FLEXURAL STRENGTH
GASIFICATION
GRAVIMETRIC ANALYSIS
INDUSTRIAL PLANTS
MATERIALS TESTING
MECHANICAL PROPERTIES
QUANTITATIVE CHEMICAL ANALYSIS
REFRACTORIES
SCATTERING
TESTING
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
THERMOCHEMICAL PROCESSES
X-RAY DIFFRACTION