Title

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

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.

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.

This document is currently not available here.

Share

 
COinS