Electrically conductive honeycomb structure, particularly for el

Details Electrically conductive honeycomb structure, particularly for el Electrically conductive honeycomb structure, particularly for el

1996-09-17

1997-08-05

Jordan, Charles T.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428552, 219552, 219553, 219541, B22F 700

Patent

active

056552114

ABSTRACT:
A honeycomb structure includes a honeycomb body of electrically conductive material. The honeycomb body has regions of different material with different specific electrical resistance. The honeycomb body is electrically divided by slots and/or electrically insulating layers for causing an electric current to flow along a winding path through the honeycomb body. A method for producing a honeycomb body having regions of different specific electrical resistances includes supplying two different compositions of metal powder or a mixture of metal and ceramic powder to an extruder, while guiding one of the compositions to an inner region and the other of the compositions to an outer region of the extruder surrounding the inner region. The different compositions are co-extruded to make a monolithic honeycomb body. The honeycomb body is fired, sintered or physically-chemically treating differently from one region to another. Offset slots are formed in the extruded honeycomb body.

REFERENCES:
patent: 3956614 (1976-05-01), Hervert
patent: 3982100 (1976-09-01), Hervert
patent: 4717813 (1988-01-01), Berg et al.
patent: 5202547 (1993-04-01), Abe et al.
patent: 5446264 (1995-08-01), Kondo et al.

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