Durability of Extruded Electrically Heated Catalysts

Paper #:
  • 950404

Published:
  • 1995-02-01
Citation:
Weiss, D., Buhrmaster, C., Hampton, L., Powell, W. et al., "Durability of Extruded Electrically Heated Catalysts," SAE Technical Paper 950404, 1995, https://doi.org/10.4271/950404.
Pages:
10
Abstract:
Extruded metal honeycombs are used as electrically heated catalysts (EHCs). The durability requirements of this application make demands on high surface area, thin cross-section metal honeycombs. Significant durability improvements over previous extruded metal honeycomb EHCs have been achieved by material and package design changes. The product redesign was supported by finite element models and extensive testing. The redesigned EHC has passed severe laboratory and field testing. The tests include electrical cycling to 1000°C/1600 cycles, hot vibration to 60g/900°C and demanding on-vehicle exposure. Excellent durability of the extruded metal honeycomb has been demonstrated.
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