MMM
Results 1 to 25 of 1732

Thread: Can anyone rate the primochill Typhoon III?

Hybrid View

  1. #1
    I am Xtreme
    Join Date
    Jun 2007
    Location
    Imperial Palace, UDE of Pitatopia
    Posts
    8,396
    Quote Originally Posted by BoxGods View Post
    I think maybe one of us is not getting the point. The 300 series stainless in the D5 would NOT be the anode...the copper in you block would be. The link I posted shows the relative voltage ranges of the various metals. Again, the LESS noble metal would act as the anode and show INCREASED corrosion while the more noble metal would be cathodic and have decreased corrosion. All of this is totally irrelevant because the 300 series stainless steel parts of the D5 are totally isolated from any other metal parts in you cooling loop ELECTRICALLY. My original point in bringing up the D5 was to demonstrate a REAL example of dissimilar metals that have been in everyone's cooling loops for years without any galvanic corrosion rather then resorting to the heard it from a guy who heard it from his brother type anecdotal evidence we normally see posted.

    Here is the link again:

    http://www.ceoe.udel.edu/seagrant/pu...corrosion.html

    Keep in mind that that is written by a professor of applied sciences...

    As for the CPU leaking an electrical charge to the block. I would doubt this but I can't say for sure. It would not matter if it HAD happened though because adding electricity to an OPEN branch still would not provide a closed contact electrical coupling. For that to happen the cpu block would need to be in contact with another dissimilar metal in the loop still...
    . . .and you completely ignored my Koolance example which is a far greater distance of metal nobility than the stainless/copper example.

    *sigh*Agree to disagree it is then.
    Circles SucQ!

    If your annoyed by sigs telling you to put things in your sig, then put this in your sig

    Bribery won't work on me...just say NO to AT!!!

  2. #2
    Xtreme Addict
    Join Date
    Feb 2008
    Location
    South Texas
    Posts
    1,186
    Quote Originally Posted by Waterlogged View Post
    . . .and you completely ignored my Koolance example which is a far greater distance of metal nobility than the stainless/copper example.

    *sigh*Agree to disagree it is then.
    Did I? Sorry. I remember those, but as I recall it was about THERMAL conductivity...there was a few months there where that gold stuff was all the rage for thermal conductivity.

    I say that because it comes back to dissimilar metals...coating copper with gold to prevent a non coupled aluminum part from corroding would not work (not that there would be a problem because the aluminum radiator was not in contact with the copper/gold CPU block). If it WERE an issue you would have to plate the radiator in copper...

    I happen to know for a fact your a brighter then average guy so your either playing devils advocate here or you didn't take the five minutes to READ the links

    Whoops I missed your agree to disagree comment. AGREED =)
    Last edited by BoxGods; 08-25-2009 at 01:14 AM.

  3. #3
    I am Xtreme
    Join Date
    Jun 2007
    Location
    Imperial Palace, UDE of Pitatopia
    Posts
    8,396
    Quote Originally Posted by BoxGods View Post
    Did I? Sorry. I remember those, but as I recall it was about THERMAL conductivity...there was a few months there where that gold stuff was all the rage for thermal conductivity.

    I say that because it comes back to dissimilar metals...coating copper with gold to prevent a non coupled aluminum part from corroding would not work (not that there would be a problem because the aluminum radiator was not in contact with the copper/gold CPU block). If it WERE an issue you would have to plate the radiator in copper...

    I happen to know for a fact your a brighter then average guy so your either playing devils advocate here or you didn't take the five minutes to READ the links

    Whoops I missed your agree to disagree comment. AGREED =)
    Ooopppss, did I forget to mention that Koolance blocks like the CPU-330 and GPU-200 also have nickel plated aluminum tops?
    Circles SucQ!

    If your annoyed by sigs telling you to put things in your sig, then put this in your sig

    Bribery won't work on me...just say NO to AT!!!

  4. #4
    Moderator
    Join Date
    Mar 2006
    Posts
    8,556
    Quote Originally Posted by Waterlogged View Post
    . . .and you completely ignored my Koolance example which is a far greater distance of metal nobility than the stainless/copper example.

    *sigh*Agree to disagree it is then.
    Besides Galvanic corrosion, there is corrosion due to dissolved Cathions. And of course the cathions move around by virtue of a pump. The noble elements rarely give off cathions... or any ions for that matter.

    In the example of copper and Alu its:

    3Cu(2+) + 6e- > 3Cu
    2Al > 2Al(3+) + 6e-

    Therefore.... 3Cu(2+) + 2Al > 3Al(3+) + 3Cu

    ^^ Thats the reduction of copper by the oxidation of Aluminium, and leads to pitting. Happens in Water.

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •