Title

Properties of Refractories after Exposure to High Pressure Gases I

Alternative Title

Survey of commercial products

Abstract

The chemical resistance of the bond phases in eleven commercial and three experimental cement-bonded castables and phosphate-bonded ramming mixes to an atmosphere of CO, CO2, H2O, CH4, H2, and H2S, at 6.9 MPa (1000 psia) for 30 days at 231 and 538 °C was evaluated from physical and mechanical property changes, X-ray diffraction, and DTA/TGA. Cement-bonded castables exposed to the saturated atmosphere showed a significant increase in flexural strength and reduction in porosity which corresponded to the large amounts of boehmite, AIO(OH), formed during exposure. The dissolution of CaO from the cement-bond phases appeared to affect the properties only slightly at these temperatures and pressure. The AIPO4 bond phase was sensitive to saturated atmospheres only.

Department(s)

Materials Science and Engineering

Keywords and Phrases

Characterization and Evaluation of Materials

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1979 Springer Verlag, All rights reserved.

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