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Title: Corrosion resistant ceramic materials

Abstract

Ceramic materials are disclosed which exhibit stability in severely-corrosive environments having high alkali-metal activity, high sulfur/sulfide activity and/or molten halides at temperatures of 200--550 C or organic salt (including SO{sub 2} and SO{sub 2}Cl{sub 2}) at temperatures of 25--200 C. These sulfide ceramics form stoichiometric (single-phase) compounds with sulfides of Ca, Li, Na, K, Al, Mg, Si, Y, La, Ce, Ga, Ba, Zr and Sr and show melting-points that are sufficiently low and have excellent wettability with many metals (Fe, Ni, Mo) to easily form metal/ceramic seals. Ceramic compositions are also formulated to adequately match thermal expansion coefficient of adjacent metal components. 1 fig.

Inventors:
Publication Date:
Research Org.:
Univ. of Chicago, IL (United States)
OSTI Identifier:
264556
Patent Number(s):
US 5,538,810/A/
Application Number:
PAN: 8-473,757
Assignee:
PTO; SCA: 360205; PA: EDB-96:121257; SN: 96001625910
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 23 Jul 1996
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERAMICS; CORROSION RESISTANCE; SULFIDES; ALKALI METALS; MOLTEN SALTS; SULFUR DIOXIDE; THIONYL CHLORIDES; THERMODYNAMIC PROPERTIES; CALCIUM SULFIDES; LITHIUM SULFIDES; SODIUM SULFIDES; POTASSIUM SULFIDES; ALUMINIUM SULFIDES; MAGNESIUM SULFIDES; SILICON SULFIDES; YTTRIUM SULFIDES; LANTHANUM SULFIDES; CERIUM SULFIDES; GALLIUM SULFIDES; BARIUM SULFIDES; ZIRCONIUM SULFIDES; STRONTIUM SULFIDES

Citation Formats

Kaun, T.D. Corrosion resistant ceramic materials. United States: N. p., 1996. Web.
Kaun, T.D. Corrosion resistant ceramic materials. United States.
Kaun, T.D. Tue . "Corrosion resistant ceramic materials". United States.
@article{osti_264556,
title = {Corrosion resistant ceramic materials},
author = {Kaun, T.D.},
abstractNote = {Ceramic materials are disclosed which exhibit stability in severely-corrosive environments having high alkali-metal activity, high sulfur/sulfide activity and/or molten halides at temperatures of 200--550 C or organic salt (including SO{sub 2} and SO{sub 2}Cl{sub 2}) at temperatures of 25--200 C. These sulfide ceramics form stoichiometric (single-phase) compounds with sulfides of Ca, Li, Na, K, Al, Mg, Si, Y, La, Ce, Ga, Ba, Zr and Sr and show melting-points that are sufficiently low and have excellent wettability with many metals (Fe, Ni, Mo) to easily form metal/ceramic seals. Ceramic compositions are also formulated to adequately match thermal expansion coefficient of adjacent metal components. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 23 00:00:00 EDT 1996},
month = {Tue Jul 23 00:00:00 EDT 1996}
}