Ceramic coating system or water oxidation environments

Patent · Mon Jan 01 00:00:00 EST 1996

OSTI ID:870555

Hong, Glenn T ^[1]

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1. Tewksbury, MA

A process for water oxidation of combustible materials in which during at least a part of the oxidation corrosive material is present and makes contact with at least a portion of the apparatus over a contact area on the apparatus. At least a portion of the contact surface area comprises titanium dioxide coated onto a titanium metal substrate. Such ceramic composites have been found to be highly resistant to environments encountered in the process of supercritical water oxidation. Such environments typically contain greater than 50 mole percent water, together with oxygen, carbon dioxide, and a wide range of acids, bases, and salts. Pressures are typically about 27.5 to about 1000 bar while temperatures range as high as 700.degree. C. The ceramic composites are also resistant to degradation mechanisms caused by thermal stresses.

• DOE Contract Number: C94-170508
• Assignee: Modar, Inc. (Natick, MA)
• Patent Number(s): US 5545337
• OSTI ID: 870555
• Country of Publication: United States
• Language: English

Related Subjects

ceramic
coating
water
oxidation
environments
process
combustible
materials
corrosive
material
makes
contact
portion
apparatus
surface
comprises
titanium
dioxide
coated
metal
substrate
composites
found
highly
resistant
encountered
supercritical
typically
contain
50
mole
percent
oxygen
carbon
wide
range
acids
bases
salts
pressures
27
1000
bar
temperatures
700
degree
degradation
mechanisms
caused
thermal
stresses
contact surface
metal substrate
water oxidation
thermal stress
ceramic composites
ceramic composite
carbon dioxide
mole percent
wide range
titanium dioxide
combustible material
thermal stresses
supercritical water
typically contain
percent water
combustible materials
titanium metal
ceramic coating
oxidation environments
highly resistant
corrosive material
makes contact
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