Carleton Life Support Systems Inc.

Praxair Technology, Inc.

Zhonglin Wu

Scott R Sehlin

Deno Georgaras

Gervase Maxwell Christie

Tuan Q Cao

David Matthew Reed

Courtney Joseph Monzyk

Deno K Georgaras

A mixed conducting ceramic element comprises a plurality of tubes each having interior and exterior surfaces, a closed end and an open end. A tube support member receives the open ends of the tubes. The ceramic element has a general composition of AA'A&#x2033;BB&#x2032;B&#x2033;O, where A, A&#x2032; and A&#x2033; are selected from Group II elements or the Lanthanoids, and B, B&#x2032; and B&#x2033; are selected from the d-block transition metals, and wherein 0&#x3c;x&#x2266;1, 0&#x3c;x&#x2032;&#x2266;1, 0&#x3c;x&#x2033;&#x2266;1, 0&#x3c;y&#x2266;1, 0&#x3c;y&#x2032;&#x2266;1, 0&#x3c;y&#x2033;&#x2266;1, x+x&#x2032;+x&#x2033;&#x2248;1, y+y&#x2032;+y&#x2033;&#x2248;1, and z is selected so that the resultant composition is charge neutral. The ceramic element can be a composite consisting of two or more component materials, wherein one component is predominantly an electronic conductor and another is predominantly an ionic conductor. The ceramic element may also be a composite material containing at least one component material having a chemical composition of AA&#x2032;A&#x2033;BB&#x2032;B&#x2033;O.

Pressure driven ceramic oxygen generation system with integrated manifold and tubes

An ionically conductive ceramic element () comprises a plurality of tubes () each having interior () and exterior () surfaces and closed () and open () ends. A tube support () receives open tube ends (). A first electrically conductive coating () is formed on the exterior tube surfaces (). A second coating () is formed on the interior tube surfaces (). A bottom electrically conductive stripe () makes electrical connections between second coatings () on the interior tube surfaces (). A top electrically conductive stripe () creates electrical connections between first coatings () on the exterior tube surfaces (). The top and bottom stripes are connected such that at least one stripe () on the top is electrically connected to at least one stripe () on the bottom.

IMAT modules with serial conductive stripes

An electrochemical cell assembly in which one or more grounded conduits, that can be an oxygen product tube or simply inlets or outlets, are connected to the electrically driven oxygen separator. In order to prevent the conduit(s) from degrading due to electrochemical reduction due to the electrical potential produced between the electrically driven oxygen separator(s) and the grounded conduit or conduits, a conduit is formed in whole or in part by a ceramic material that is an electric insulator and that is also resistive to electrochemical reduction. The ceramic material comprises distinct phases of magnesia and spinel or magnesia, spinel and yttrium aluminate.

Electrochemical cell assembly

Particle migration, such as silver electro-migration, on a flat ceramic surface is effectively eliminated by an upward vertical barrier formed on the surface or a groove formed in the surface between two silver conductors.

Buffer zone for the prevention of metal migration

A porous ceramic substrate structure () having an interior portion () formed with an outer surface () is porous to at least one selected gas (). A first ceramic coating layer () is applied to the outer surface () of the ceramic substrate structure () in a suspension state. The first ceramic coating suspension () has a desired level of viscosity for application to the substrate and is formed with a ceramic electrolyte powder and at least one organic additive. A second ceramic coating layer () is applied to the outer surface () following application of the first coating (). The second coating () is initially applied after the first coating () and in a suspension state. The ceramic layers (and) substantially prevent gas leakage through the outer surface ().

Growing community of inventors

Bettendorf, IA, United States of America

Zhonglin Wu