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Title: Method of preparing corrosion resistant composite materials

Method of manufacture of ceramic materials which require stability in severely-corrosive environment having high alkali-metal activity, high sulfur/sulfide activity and/or molten halides at temperatures of 200.degree.-550.degree. C. or organic salt (including SO.sub.2 and SO.sub.2 Cl.sub.2) at temperatures of 25.degree.-200.degree. C. These surfide 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.
Authors:
 [1]
  1. (320 Willow St., New Lenox, IL 60451)
Publication Date:
OSTI Identifier:
868699
Report Number(s):
US 5194298
Resource Type:
Patent
Research Org:
Argonne National Laboratory (ANL), Argonne, IL
Country of Publication:
United States
Language:
English
Subject:
method; preparing; corrosion; resistant; composite; materials; method; manufacture; ceramic; materials; require; stability; severely-corrosive; environment; alkali-metal; activity; sulfur; sulfide; activity; molten; halides; temperatures; 200; degree; -550; degree; organic; salt; including; temperatures; 25; degree; -200; degree; surfide; ceramics; form; stoichiometric; single-phase; compounds; sulfides; na; mg; zr; sr; melting-points; sufficiently; excellent; wettability; metals; easily; form; metal; ceramic; seals; ceramic; compositions; formulated; adequately; match; thermal; expansion; coefficient; adjacent; metal; components; adjacent metal; metal components; ceramic seals; corrosive environment; metal component; expansion coefficient; composite materials; corrosion resistant; ceramic material; ceramic composition; thermal expansion; ceramic materials; composite material; form metal; ceramic compositions; sulfide activity; alkali-metal activity; adequately match; ceramics form; molten halides; organic salt; match thermal; composite mat; excellent wettability; form stoichiometric; easily form; molten halide; severely-corrosive environment; resistant composite; omposite materials; ceramic seal; ceramic mater /427/156/264/