A PROCESS TO PROTECT LIGHT METAL SUBSTRATES
There is disclosed a method of placing a substrate into a controlled conductivity plasma electrolytic oxidation (PEO) bath configured for the substrate; wherein the PEO bath includes a nitrogen containing organic compound, and applying a voltage for a period of time to produce a substantially contin...
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Zusammenfassung: | There is disclosed a method of placing a substrate into a controlled conductivity plasma electrolytic oxidation (PEO) bath configured for the substrate; wherein the PEO bath includes a nitrogen containing organic compound, and applying a voltage for a period of time to produce a substantially continuous nitride or nitrogen compound containing PEO layer of between about 1 to about 100 microns thick on the substrate. The substrates are preferably magnesium, titanium, or aluminium. The PEO process is preferably carried out under alkaline conditions and at voltages of less than about 160 volts. |
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