Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Method of making a fuel cell – fuel cell stack – or...
Reexamination Certificate
2006-01-12
2011-10-18
Hodge, Robert (Department: 1729)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Method of making a fuel cell, fuel cell stack, or...
C429S482000, C429S485000, C429S496000, C429S533000, C419S002000, C419S008000
Reexamination Certificate
active
08039175
ABSTRACT:
The present invention provides a method for producing a multilayer structure, comprising the steps of: providing a composition comprising a Fe—Cr alloy powder and at least one of the oxides of Fe, Cr, Ni, Co, Zn, Cu; forming a first layer of said composition; forming at least one additional layer on one side of said first layer; heat treating said layers in an oxygen-containing atmosphere; and sintering in a reducing atmosphere so as to provide a final alloy, wherein the amount of Fe in the final alloy of the first layer after the sintering step is in the range of from about 50-90% by weight, based on the total weight of the final alloy.
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Dyck, C.R. et al., &
Larsen Peter Halvor
Linderoth Søren
Hodge Robert
Michael & Best & Friedrich LLP
Technical University of Denmark
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