Compact multilayer ceramic-to-metal seal structure

Details Compact multilayer ceramic-to-metal seal structure Compact multilayer ceramic-to-metal seal structure

1992-05-01

1994-01-18

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Cell enclosure structure, e.g., housing, casing, container,...

429174, 296232, 228170, 2281732, H01M 208

Patent

active

052799093

ABSTRACT:
A compact multilayer ceramic-to-metal seal structure, and method for manufacture, includes a ceramic core with opposed metallic surface layers. Between the ceramic core and each of the metallic surface layers is a transition zone which is made from graded layers of metallic and ceramic powders. These layers have progressively greater concentrations of metallic constituents than ceramic constituents the nearer the layer is to the metallic surface layer. Conversely, within the transition zone, the nearer a layer is to the ceramic core, the greater is its concentration of ceramic constituents. This seal is manufactured by simultaneously sintering a multilayer structure of compressed ceramic and metallic powders.

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