G - Physics – 01 – N
Patent
G - Physics
01
N
324/25
G01N 27/00 (2006.01) C04B 37/02 (2006.01)
Patent
CA 1054224
ABSTRACT OF THE DISCLOSURE This specification discloses an electrochemical gas sensor having a zirconia substrate and electrodes each comprising a thin substantially continuous layer of platinum securely bonded to the substrate and a relatively thicker electrically conductive metal bonded to said thin layer. In one form the thicker metal comprises a layer of porous platinum bonded to said thin layer, the thin layer being from .08µm and 1.5µm to 500µm thick. In an alternative form the thicker metal comprises a fine electrically platinum wire bonded to the thin layer by a similar thin layer of platinum applied over the wire. A method of applying the electrodes to the substrate is also disclosed.
234545
Hoffman John W.
Robson Graeme J.
Wilson John F.
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