Stability of Refractory Castables in Steam-N₂ and Steam-CO Atmospheres at 199 Degree C

Author

D. E. Day, Missouri University of Science and TechnologyFollow
Frank D. Gac

Abstract

The properties of a high, intermediate and low Al₂O₃ refractory castable were investigated after exposure to steam--N₂ and steam--CO atmospheres at 465 psia and 199/sup 0/C for 6, 12 and 18 days. Chemical reactions consisted of (1) the hydration of residual unreacted calcium aluminate cement to form additional cementitious phases, (2) the leaching of CaO from the castable and its reaction to form CaCO₃ and calcium formate, (3) the hydration of alumina to form boehmite and (4) the dissolution of SiO₂ by steam. The properties of the intermediate Al₂O₃ castable were least affected by the exposure conditions.

Recommended Citation

D. E. Day and F. D. Gac, "Stability of Refractory Castables in Steam-N₂ and Steam-CO Atmospheres at 199 Degree C," American Ceramic Society Bulletin, vol. 56, no. 7, pp. 644 - 648, American Ceramic Society, Jul 1977.

Meeting Name

Fall meeting of the Refractories Div. of the American Ceramic Society (1975: Oct. 4, Bedford, PA)

Department(s)

Materials Science and Engineering

Keywords and Phrases

Refractory Materials

International Standard Serial Number (ISSN)

0002-7812

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1977 American Ceramic Society, All rights reserved.

Publication Date

01 Jul 1977