Ducted composite, e.g. honeycomb, useful for catalytic reaction of gas, especially engine exhaust gas, uses nickel-chromium-silicon-iron solder containing little boron with high-aluminum metal foil

摘要

In a composite of metal foils containing at least 6 wt.% aluminum and a solder, the solder is based on nickel and contains 17-23 wt.% chromium, 5-10 wt.% silicon, 18-20 wt.% iron and less than 0.5 wt.% boron.