SiC coating on graphite
06-29-2012, 07:17 PM, (This post was last modified: 06-29-2012, 07:37 PM by snowdrop.)
#1
SiC coating on graphite
Hello, I am a newcomer here, and happy to find this forum.

I'd like to ask a question. Any suggestions or comments would be appreciated very much Smile

I'm looking for a material to fully coat a very small graphite part (5x5x2mm) for anti-oxidation purpose. The material should stand high temperature (~3000F degrees) and should be electrically conductive.

Someone told me that SiC can do the work. Does anyone know who can do SiC coating on such small graphite components? Is there any other material could be an alternative?

Thanks in advance!
Reply
07-22-2012, 05:09 PM,
#2
RE: SiC coating on graphite
Hi Snowdrop

Sign0016 to the Surface Engineering Forum.

I will bump this thread as it has been unanswered.

A silicon carbide coating is the only one I can think of that may go some of the way to meet your requirements.

This link may be of interest:
https://www.ultramet.com/ceramic_protect...tings.html
Reply
07-23-2012, 05:16 AM,
#3
RE: SiC coating on graphite
(06-29-2012, 07:17 PM)snowdrop Wrote: Hello, I am a newcomer here, and happy to find this forum.

I'd like to ask a question. Any suggestions or comments would be appreciated very much Smile

I'm looking for a material to fully coat a very small graphite part (5x5x2mm) for anti-oxidation purpose. The material should stand high temperature (~3000F degrees) and should be electrically conductive.

Someone told me that SiC can do the work. Does anyone know who can do SiC coating on such small graphite components? Is there any other material could be an alternative?

Thanks in advance!

Hi,

You can cover carbon with tungsten or molybdenum by plasma spray

Ion
Reply
07-23-2012, 02:05 PM,
#4
RE: SiC coating on graphite
Quote:You can cover carbon with tungsten or molybdenum by plasma spray


Unfortunately, these have poor oxidation resistance.
Reply
07-26-2012, 04:08 PM,
#5
RE: SiC coating on graphite
Thank you so much, Gordon! Very helpful!
Reply




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