ECR is a vacuum process in being applied this way. SiOx is not conductive
enough for a electrical contact coating.
Carey
-----Original Message-----
From: joyce <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Date: Friday, December 03, 1999 6:35 PM
Subject: Re: [TN] anti-abrasion finish
>May be you should look into large area SiO2 deposition using ECR (electron
>cycletron resonance) process. It is NOT high vacuum process and can be
used
>for large area coating (don't ask me how to rework or take it
off....)..Good
>luck.
> jk
>At 08:09 AM 12/4/99 +1100, you wrote:
>>Carey I have no idea where Ralph is coming from (wet or dry process),
>>only thing understood was protection of metal .
>>You're quite correct, TiN coats are vacuum and vapor deposit,
>>nothing wet about it .
>>
>>Where did this wet note came from , Ralph did not mention any (neither
me).
>>You got me bit confused : know the application ?
>>Why did you highlight the refractory character ?
>>And, yes , big sheet coat is a process (and chamber) problem
>>
>>Paul
>>
>>-----Original Message-----
>>From: Carey Pico [mailto:[log in to unmask]]
>>Sent: Friday, 3 December 1999 10:33
>>To: [log in to unmask]
>>Subject: Re: [TN] anti-abrasion finish
>>
>>
>>Can you get a decent TiN coating with wet plating? I thought that was a
>>vacuum process.
>>
>>Carey
>>-----Original Message-----
>>From: Paul Klasek <[log in to unmask]>
>>To: [log in to unmask] <[log in to unmask]>
>>Date: Thursday, December 02, 1999 2:46 PM
>>Subject: Re: [TN] anti-abrasion finish
>>
>>
>>>Why don't you try Ti Nitride coatings Ralph,
>>>there are 3-4 different colours/formulations (apart from the oldest
goldish
>>>one);
>>>they're relatively cheap, work superbly ;
>>>it's basically a ceramic coat, with mildly different hardness ratios .
>>>Metal finish is always inferior to ceramic coats ;
>>>and those nowadays go even to engines = quite common .
>>>Microcrystalline alumina is way out of any metal's reach ;
>>>as you're moving just below diamond ceiling in carborundum strata .
>>>
>>>You can also get the part sintered fully from ceramic compound,
>>>if possible/necessary/affordable = pending application
>>>
>>>Let me know if you get stuck or need more details,
>>>with application
>>>
>>>Paul Klasek (aka the carbon fan [as all of us])
>>>ResMed
>>>
>>>PS
>>>The cer coats being hard are fragile = you still need a very good (hard)
>>>base,
>>>and treat the part as an egg .
>>>Than the polish (lengthy, automated, as glass polish) = smooth surface,
>>will
>>>lengthen the life of the surface.
>>>Still, keep in mind you're in 9.th (10.th diamond) scale with alumina,
>>>don't expect infinite service .
>>>
>>>PPS
>>>The synthetic diamond has been formed in few labs,
>>>but we'd be in straight vertical stratosphere on $'s .
>>>
>>>NB
>>>Just hook on search engines with "ceramic coats" and "ceramic tool bit
(or
>>>tip)" ;
>>>should give you plenty options .
>>>Cer. tip could be the one for you
>>>
>>>
>>>-----Original Message-----
>>>From: Vaughan, Ralph H [mailto:[log in to unmask]]
>>>Sent: Friday, 3 December 1999 5:50
>>>To: [log in to unmask]
>>>Subject: [TN] anti-abrasion finish
>>>
>>>
>>>Hi TN,
>>>
>>>A follow-up query to a recent posting about sand-type abrasion for you
>>>metalheads (Dave H., you there?); Is there a metal finish that will
>>>withstand rubbing wear from aluminum oxide powder? we have tried
tungstun
>>>carbide and stellite with 'no joy'. Any light bulbs going on?
>>>
>>>Thanks for thinking
>>>
>>>Ralph Vaughan
>>>
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