brass?

[JFettig]

what kind of trancefer qualities does brass have?

[flounder43]

I presume you are refering to the heat conductive qualities of brass? I would defer to SSS (silversinksam). SSS, you are needed!

[eobard]

Originally posted by maskedgeek
what kind of trancefer qualities does brass have?

I've got a couple of the now extinct 10 Franc coins that are brass and I asked once before just how good it would be as an insert between a chip and aluminum sink. I can't remember the exact replies, I'll go looking for the thread, but I do know that the consensus amongst those who know was that brass is inferior to copper and aluminum as a heat transfer material.

***edit: found it, here's (http://forums.overclockers.ws/vb/showthread.php?s=&threadid=14675) the link. It's a lot shorter than I remembered, sorry.

[GoldenTiger]

Brass is compatible with copper in a watercooling setup (no battery effect or cooling loss/corrosion), which is a thing to note when piecing together your setup :).

[Silversinksam]

Brass is a horrible thermal conduit :(

Brass 70% copper, 30% zinc 1.220


Thermal Conductivity, W/cm-K
Metals
Aluminum 2.165
Beryllium 1.772
Beryllium-copper 1.063
Brass 70% copper, 30% zinc 1.220
Copper 3.937
Gold 2.913
Iron .669
Lead .343
Magnesium 1.575
Molybdenum 1.299
Monel .197
Nickel .906
Platinum .734
Silver 4.173
Stainless Steel-321 .146
Stainless Steel-410 .240
Steel, low carbon .669
Tin .630
Titanium .157
Tungsten 1.969
Zinc 1.024

Cusil is in the 5 range

[Warlord2]

I asked how good brass is and everyone said it was bad and stay away from it
:D

[eobard]

Originally posted by Silversinksam
Thermal Conductivity, W/cm-K
Metals
Aluminum 2.165
Copper 3.937
Gold 2.913
Silver 4.173


Wouldn't a heatsink made of gold turn to mush on the cpu die??? I assume that gold stat is based on pure gold right? What would common alloy 10k gold have as properties? What about 14k?

[Silversinksam]

Common gold alloys are silver, copper, nickel, and zinc

24-karat gold is pure gold
12-karat gold is 50 percent gold and 50 percent alloy
18karat gold is 18/24ths


As far as it melting or getting mushy, it would need to get to 1064.18 °C 1947.52 °F


Even AMD's dont get that hot:p

[eobard]

I didn't mean mush from melting, I meant mush from the pressure of the clip, assuming it was pure gold.

[arhines]

Isn't it extremely easy to mold/machine though? Could at least make an aesthetically appealing waterblock :)

[eobard]

Nah, move things around too much and it'd start to leak. Besides, it isn't even as good as copper on Silversinksam's list. And it'd cost a ton. Given the cost vs. heat dissipation factors I wouldn't go for silver even, unless I had money to burn.

[Diggrr]

If you want a Gold plated waterblock, go for it. Relap the bottom side back to copper though, and don't plate the interior.

It won't gain anything past being purty (except tarnish resistance.):cool:

[BladeRunner]

Silversinksam

While we are on the subject any ideas of Cusil suppliers in block or plate format ideally quailty stuff around the Ag 71% Cu29%?

I found a few Cusil ribion and wire suppliers but no plate.

[Voodoo Rufus]

I believe that Silver conducts heat better than gold does, but I'm not sure about Platinum.

[The Overclocker]

Originally posted by BladeRunner
Silversinksam

While we are on the subject any ideas of Cusil suppliers in block or plate format ideally quailty stuff around the Ag 29% Cu71%?

I found a few Cusil ribion and wire suppliers but no plate.

becooling (www.aquastealth.com) sell a CuSil cold plate, that is about it

[Silversinksam]

Im smelting my own Cusil in Feb. Im going to make a fewsheets 12" x 4 " x 3-5mm thick


Its a pain for me to do it but the prices vendors are charging are insane. I'll make this for Overclockers.com registered forum users and sell it at my exact cost when done.



Thermal Conductivity, W/cm-K
Metals
Aluminum 2.165
Copper 3.937
Gold 2.913
Silver 4.173
Cusil 5+

[JFettig]

thanks for you input!
i was thinking of taking a brass T connector with flat edges, lapping it and just using that, and look at how easy that would be!
but cince it doesnt work as well.... and btw ware do you people get your copper for your waterblocks that you make?
im currently making a aluminum one cuz i can find NO copper besides pipe


thanx guys