Monolithic metallic catalyst substrates offering improved heat conductivity
are provided from metal powder extrusion batches of copper, tin, zinc,
aluminum, iron, silver, nickel, and mixtures and alloys thereof by
extrusion through a honeycomb extrusion die followed by drying and firing
in a two stage firing process to oxidize organic extrusion batch
components, remove residual oxides from the porous wall structure, and
consolidate the metal powders to strong, integral honeycomb support
structures.
