Compositions – Electrically conductive or emissive compositions
Reexamination Certificate
2007-05-29
2007-05-29
Kopec, Mark (Department: 1751)
Compositions
Electrically conductive or emissive compositions
C264S628000, C427S376100, C427S430100, C428S307300, C428S307700, C428S316600, C428S322700, C428S613000, C429S006000, C429S006000, C095S054000, C205S765000, C156S244270
Reexamination Certificate
active
10433042
ABSTRACT:
The invention concerns a method for preparing a thin ceramic material with controlled surface porosity gradient, including (A) infiltrating a porous pore-forming substrate of controlled thickness, with a ceramic material suspension; (B) evaporating the solvent; (C) a step which includes eliminating the pore-forming agents and the various organic additives, and (D) a sintering step. The invention also concerns the use of the ceramic material in the method for preparing a solid electrolyte and a mixed ionic-electronic conductor, in methods for preparing ultra-pure oxygen, for eliminating oxygen from a gaseous atmosphere, for producing heat energy, for preparing gas or liquid filtering membranes, for ceramic/metal joints, for biomaterials and sensors.
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Chartier Thierry
Guillotin François
Cronin Christopher J.
Kopec Mark
L'Air Liquide, Société Anonyme à Directoire et
Vijayakumar Kallambella
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