Magnesium anodisation methods
AssigneeKeronite International Limited
InventorIan Grant Mawston
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Abstract
This invention relates to a method of anodising magnesium material which includes anodising the magnesium while it is immersed in an aqueous electrolyte solution having a pH above 7, and in the presence of a phosphate, the electrolyte solution also containing a sequestering agent. The method may further include the provision of a plasma suppressing substance within the electrolyte solution. Furthermore, the electrolyte solution may also preferably include a tertiary amine such a TEA, and the current passed through the electrolyte solution may preferably be a straight DC current.
Claims25
A method of anodizing magnesium material comprising:
- anodizing the magnesium material while it is immersed in an aqueous electrolyte solution having a pH above 7 and in the presence of a phosphate, the electrolyte solution also containing ethylene diamine tetramethylene phosphonic acid as a sequestering agent used in combination with triethanolamine for binding any loose or superfluous ions so that they cannot react and form powder deposits.
Dependencies are inferred from the claim text.