Plasma deposition through chemical vapour deposition

Jewelry Discussion
1

Dear All

I have been trying to get info on this technique called plasma
deposition through chemical vapour deposition (CVD) for jewellery
Please do let me know if you have some info on the same

Regards
Regan Mithani
Delmer Products Ltd
www.delmer.in

2

Hey, small world. I know just what the words mean and not much more.
But I was browsing ebay just the other day, and there was that very
machine, if you’re interested in one. I don’t remember at all exactly
where, but it was under business and industrial/machinery and then
maybe machine tools. Probably still there. I’m kind of like Scotty on
Star Trek - I read technical manuals for pleasure…

http://www.donivanandmaggiora.com

3

Hi,

I’m not certain what sort of you are after, but I do know
something about this. Though my experience is in an "industrial"
application (Thin film optical filters) rather than jewelry, the
general processes would be similar, I suspect.

In general terms, CVD and “plasma deposition” describe two somewhat
different processes. Feel free to email me directly, maybe I can
answer some general questions, or maybe not.

Glad to try, however.

AL A.

4

I think that original question was incorrectly stated. I guess the
enquiry was about CVD process which is accomplished in plasma
environment. CVD stands for Chemical Vapor Deposition and used to
synthesize diamonds. The recent concern is that CZ can be coated via
CVD process and that can be enough to fool a diamond tester which was
design to measure heat conductivity of the stone under test.

Just guessing.

Leonid Surpin.

5

My apologise for my ignorance But I have come to know that jewellery
can be coated with method and the jewellery can withstand long
durations of time without loosing on lustre or the rhodium coated on
it

I sincerely appreciate the help that has been offered so far but I
believe that this may be the future

Regards
Regan

6

Regan,

I have been trying to get info on this technique called plasma
deposition through chemical vapor deposition (CVD) for jewelry
Please do let me know if you have some info on the same.

I would talk to the engineers at Denton Vacuum or take a look at the
MEMSnet. Any search on “PECVD” [plasma enhanced chemical vapor
deposition] should turn up sources for this process. A company
offering thin film deposition services may use PECVD. If you needed a
coating of metal, DC sputter can do it without the “high tech”. If
you needed a diamond coating, then I can connect you with Dr. Shanov.

Denton Vacuum > Sitemap - Denton Vacuum
MEMSnet > Deposition Processes
MEMSnet exchange > http://www.mems-exchange.org/services/

HTH,

Jeff