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:
- Issue Date:
- Research Org.:
- Univ. of Chicago, IL (United States)
- OSTI Identifier:
- 264556
- Patent Number(s):
- 5538810
- 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 = {1996},
month = {7}
}
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