Slurries for producing aluminium-based coatings

Details Slurries for producing aluminium-based coatings Slurries for producing aluminium-based coatings

2011-05-03

2011-05-03

Bell, Bruce F (Department: 1759)

Electrolysis: processes, compositions used therein, and methods

Electrolytic synthesis

Utilizing fused bath

C205S379000, C205S380000, C205S372000, C075S230000, C075S232000, C075S234000, C075S235000, C106S286500, C106S287100, C204S243100, C204S247300

Reexamination Certificate

active

07935241

ABSTRACT:
A slurry comprises suspended aluminum particles in a colloid having dispersed colloidal particles of a metal oxide such as a hydroxide. The metal oxide is reducible by metallic aluminum. The slurry has such a basic pH that dissolution of the aluminum particles in the slurry is inhibited so that when the slurry is subjected to a heat treatment, the undissolved aluminum particles are reactable with the colloidal particles to form an aluminum-based mixture resistant to chemical attack made of aluminum oxide, metal aluminum and the metal of the colloidal particles. The slurry can be used to form an aluminum-based protective coating on a component, in particular of an aluminum electrowinning cell or an apparatus for treating molten aluminum.

REFERENCES:
patent: 6338785 (2002-01-01), de Nora et al.
patent: 6436250 (2002-08-01), Sekhar et al.
patent: 2003/0221955 (2003-12-01), Nora et al.

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