Method of preparing corrosion resistant composite materials

Patent · Fri Jan 01 00:00:00 EST 1993

OSTI ID:868699

Kaun, Thomas D ^[1]

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1. 320 Willow St., New Lenox, IL 60451

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.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Assignee: Kaun, Thomas D. (320 Willow St., New Lenox, IL 60451)
• Patent Number(s): US 5194298
• OSTI ID: 868699
• Country of Publication: United States
• Language: English

Related Subjects

method
preparing
corrosion
resistant
composite
materials
manufacture
ceramic
require
stability
severely-corrosive
environment
alkali-metal
activity
sulfur
sulfide
molten
halides
temperatures
200
degree
-550
organic
salt
including
25
-200
surfide
ceramics
form
stoichiometric
single-phase
compounds
sulfides
na
mg
zr
sr
melting-points
sufficiently
excellent
wettability
metals
easily
metal
seals
compositions
formulated
adequately
match
thermal
expansion
coefficient
adjacent
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/