August 07, 2020, 05:13:04 PM
Forum Rules: Read This Before Posting


Topic: vacuum evaporator  (Read 3771 times)

0 Members and 1 Guest are viewing this topic.

Offline Google01

  • Regular Member
  • ***
  • Posts: 10
  • Mole Snacks: +0/-2
  • Gender: Male
vacuum evaporator
« on: March 20, 2009, 07:40:28 AM »
what is vacuum vaporator and whats the difference between cvd and pvd?

Offline P

  • Full Member
  • ****
  • Posts: 639
  • Mole Snacks: +64/-15
  • Gender: Male
  • I am what I am
Re: vacuum evaporator
« Reply #1 on: March 20, 2009, 08:26:41 AM »
Hmm.   A vacuum evaporator uses a vacuum to lower the boiling point of a liquid so you can evaporate it off at a lower temperature.  Vapour Deposition is something else. This coats a substarate with a chemical in layers, molecule by molecule by sputtering molecules of said chemical onto the surface through a vacuum.  I think you mean the latter.  Have a look at these:





CVD: http://en.wikipedia.org/wiki/Chemical_vapor_deposition
PVD: http://en.wikipedia.org/wiki/Physical_vapor_deposition
Tonight I’m going to party like it’s on sale for $19.99!

- Apu Nahasapeemapetilon

Sponsored Links