Fuelcell Energy, Inc.

Matthew T Snider

Chao-yi Yuh

A caulk composition includes: at least one powder component and at least one binder component. The powder component is a ball-milled powder component comprising ceria, zirconia, alumina, or a combination thereof. The powder component is a heat-treated powder component that has been heated to a temperature of at least 1500&#xb0; C. The powder component is present in a concentration range of 65 wt % to 75 wt % of the caulk composition. The powder component has a particle size distribution of 95% less than 25 &#x3bc;m and 90% greater than 1 &#x3bc;m. The binder component is present in a concentration range of 25 wt % to 35 wt % of the caulk composition.

Wet seal caulk with enhanced chemical resistance

An inorganic felt material includes zirconia stabilized by at least one Group IIA material, such that the Group IIA material includes at least one of calcium (Ca), magnesium (Mg), or a combination thereof. The felt material may also include at least one Group III material.

Ceramic felt material for high-temperature fuel cells

A caulk composition includes at least one powder component and at least one binder component, such that the powder component has a particle size distribution in the range of 95% less than 25 &#x3bc;m and 90% greater than 1 &#x3bc;m. A molten carbonate fuel cell (MCFC) includes a fuel cell stack, a manifold, and the caulk composition disposed in between the fuel cell stack and the manifold.

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Danbury, CT, United States of America

Matthew T Snider