The method producing multilayer structures whose shrinkage and porosity are controlled during sintering, multilayer structures produced by the said method, and SOFC including the said multilayer structures

摘要

The present invention provides a method for producing a multilayer structure, comprising the steps of: providing a composition comprising a FeCr 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.