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Corrosion of a Silica‐Bearing Ceramic in Sulfur‐Oxygen Atmospheres
Author(s) -
BIEST OMER O.,
BARNES JOHN,
CORISH JOHN,
NORTON JAMES FRANK
Publication year - 1987
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1987.tb05675.x
Subject(s) - sulfur , oxygen , corrosion , ceramic , volatility (finance) , materials science , decomposition , phase diagram , phase boundary , atmosphere (unit) , high temperature corrosion , metallurgy , inorganic chemistry , mineralogy , chemistry , phase (matter) , thermodynamics , organic chemistry , physics , economics , financial economics
Experimental observations and thermodynamic calculations are described which show that formation of SiS vapor from SiO 2 in a high‐sulfur, low‐oxygen atmosphere is a viable corrosion mechanism. This mechanism will become more important than the well‐known decomposition of SiO 2 to SiO in those sulfur‐bearing atmospheres where the oxygen activity is close to the Si/SiO 2 phase boundary on a volatility diagram.