Aluminum Oxide Coatings

Aluminum Oxide is an engineered ceramic material that is widely used across many applications. It is hard, doesn't react with chemicals and can be used in high temperature operating conditions. It has excellent resistance to abrasive wear, cavitation, particle erosion, friction, heat, and oxidation. High purity materials have excellent dielectric properties and thermal conductivity making it an excellent electrical insulator. Aluminum oxide uses are varied and its availability at low cost makes it viable for many applications.

Aluminum Oxide SEM Image

Aluminum Oxide Coating Benefits

Excellent Wear and Abrasion resistance properties up to 3000F
High service temperature with Thermal Barrier to 3000F
Dielectric strength estimated to be 300-400 volts per 0.001 inch thickness at room temperature
Insoluble in aqueous solutions of common acids and alkalis

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Applications of Aluminum Oxide Coatings

Aluminum oxide coatings are recommended for chemical and textile industry applications due to its wear properties and chemical inertness. In addition, aluminum oxide's dielectric properties make it useful in industrial components that need to prevent conductivity or electrical shorts. The coating has been used successfully in motor housings, electric railways, and electric components. It's high service temperatures have made it a good candidate for rocket engine thrust chambers and jet engines.
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Examples of Aluminum Oxide Applications
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Armature Shafts
Electrically insulative Housings
Liners
Non-conductive Rollers
Pump Seals
Substrates for electrical components
Textile yarn guides and Draw rolls
Wear Surfaces

We have over 50 years of experience applying plating and coating on a vast range of industrial machinery and equipment. Contact Industrial Plating Company today, and learn about the options we have available.