Thermal spray method for adhering a catalytic material to a meta

Details Thermal spray method for adhering a catalytic material to a meta Thermal spray method for adhering a catalytic material to a meta

1995-01-17

1998-02-24

Caldarola, Glenn

Catalyst, solid sorbent, or support therefor: product or process

Miscellaneous

427454, 427456, B01J 37025

Patent

active

057211884

ABSTRACT:
A method for applying a coating of catalytic material onto a metallic substrate involves thermal spray deposition of refractory oxide particles directly onto the substrate, preferably to attain an undercoat having a surface roughness of Ra 3 or greater. The catalytic material may then be applied to the undercoated substrate in any convenient manner. In a particular embodiment, the metallic substrate is treated by grit blasting prior to the application of an undercoat principally containing alumina. The coated substrate can be used in the assembly of a catalyst member for the treatment of exhaust gases.

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