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topic 9980

Ceramic Coating on 6061 Aluminum?


(2001)

Is there a process for depositing ceramic on 6061 Aluminum? If so, is it possible to coat as this a 1-2 mils?

Niko Bratsis
- Andover, Massachusetts


(2001)

Anodizing of aluminum will create an Aluminum Oxide ceramic layer you need on the surface. If this is acceptable, look for an anodizing shop around.

Mandar Sunthankar
- Fort Collins, Colorado


First of two simultaneous responses (2001)

There has been some work done on low pressure plasma spray deposition of aluminum oxide on aluminum. If anodizing doesn't do it for you, you should check with Sulzer-Metco about spraying it on.

jim treglio portrait
Jim Treglio
- Vista, California


Second of two simultaneous responses (2001)

There are several definitions for ceramics. Which one are you wanting?

James Watts
- Navarre, Florida


(2001)

I'm interested in ceramic primarily for it's wear characteristics. The mating surface causing the wear to the part is a type of ceramic its self (99.5% Alumina). In the past, I have experimented with various hard coats including: Alcoat, Polyond, Sanford hard coat and regular black anodize. Most of these work fine. However, a secondary characteristic, which is equally as desirable, is electrical insulation. I have gone so far as making the part out of solid Zerconia (which works great, but is very expensive).

Basically, I'm looking for a cheaper alternative. Any ideas?

Niko A. Bratsis
- Andover, Massachusetts


(2001)

While not technically a ceramic, you might want to try porcelain enamel for aluminum. The enamel would still be a hard, abrasion-resistant barrier coating. I believe a leaded enamel could also meet your electric insulation requirement.

Best regards,

Charles Baldwin
- Cleveland, Ohio, USA


(2001)

Depending on the size and geometry of the part, High energy thermal spray of various ceramics will give you a very wide range of capabilities.

You should be able to find a shop fairly close to your city. If you can not find one, check with a couple of companies that manufacture the equipment for job shops that use their equipment. (Thomas Register ).

James Watts
- Navarre, Florida


May 16, 2012

Q. I'm interested in the use of a high temperature insulator, possibly a ceramic, which could be deposited inside a cast aluminum electrical enclosure. The aim would be to be able to have the product pass safety approvals using this layer as a barrier against electric shock.
Has anyone seen this type of approach, or had success in this type of application?

Brian Ceresney
- Burnaby, B.C. Canada



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