C - Chemistry – Metallurgy – 23 – F
Patent
C - Chemistry, Metallurgy
23
F
204/119, 204/188
C23F 13/12 (2006.01) C23F 13/16 (2006.01)
Patent
CA 1294239
ABSTRACT OF THE DISCLOSURE A composite sacrificial anode according to the invention comprises a core of a metal having a negative potential relative to steel, and an adjacent electrode of a material having a positive potential relative to steel and a first surface generally facing said core and a second surface in direct electrical communication with a material of a negative potential relative to steel substantially shielded from the core by the material having a positive potential relative to steel. The anode includes a suitable porous material between the core and the electrode which tends to retain water. The anode produces a potential voltage in the presence of an electrolyte between said core and electrode which is the collective effect of the material of the core and the materials of said electrode. Such an anode can be of a higher potential using conventional materials such as magnesium, zinc and graphite.
548533
Johnson Douglas S. Q.c.
St. Onge Hank
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