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Silver Water Block - Page 2

post #11 of 50
Quote:
Originally Posted by ramicio View Post

You're not going to be able to do this with cast metal, you need to use forged metal. Pure silver will be too soft for this application. You need 90% or sterling. If you can simply use a hammer to forge it close to your desired thickness, the metal is going to be too soft. Since you need to alloy it, this makes no sense other than the microbial part of it, and then you could just plate it. Even if you made this work, the cost doesn't outweigh the little or zero benefit it will reap. If you're doing it purely as proof of concept, money should never be an obstacle.

Yep. Plain and simple. Pure silver has a thermal conductance only slightly better than copper and pure silver is butter soft. You could forge it down like I mentioned in my earlier post but even getting it to full hard would be tedious and still not mechanically sound to maintain threading, seals, water pressure etc. Alloying it might help but that would defeat the whole purpose. Ramicio is totally right - the only practical benefit is microbial aversion which you could EASILY accomplish on any decent copper block. Structural improvements in the copper plate to decrease cross section and maintain strength are probably the best direction to focus now that I think about it....
post #12 of 50
Your project sounds doomed because you seem more focused on a lightweight block that you wont ruin by taking apart, then a high quality block, and silver isn't a whole lot more thermally conductive than copper.
http://en.wikipedia.org/wiki/List_of_thermal_conductivities
Depending on which source you take it from, it's conductivity gap is negligible, and having a better designed heatsink would outweigh the thermal conductivity gap.

In short, if you want to put in an assload of money your project could work, but with how you're approaching (Looking for a lightweight block that you wont ruin by taking apart) a high quality copper block would work better. tongue.gif
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post #13 of 50
get graphene instead, best block ever.
post #14 of 50
Never mind conductive cooling...cannibalize the vapor chamber from a graphics card heat sink and fabricate a water block attachment to it.
post #15 of 50
Diamond would be just as good as graphene and probably cheaper at this time.
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post #16 of 50
It could be done but impractical also don't forget anything nickel will cause galvanic coroshion with silver
post #17 of 50
Neither diamond nor graphene would be good. Hardness only means it can scratch less hard materials.
 
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post #18 of 50
Thread Starter 
Quote:
Originally Posted by ramicio View Post

Neither diamond nor graphene would be good. Hardness only means it can scratch less hard materials.
Those two materials have amazing thermal properties. I had thought about sprinkling diamond dust into the cast silver for the water block to improve thermal performance.
post #19 of 50
I couldn't imagine trying to machine that afterwards if the diamonds even held up to that heat. You would immediately destroy any end mill bit the instant it hits a piece of diamond. The diamond would also shatter upon impact leaving a gap of air. The silver isn't even going to be strong enough without alloying to make a water block. It's just too soft.
 
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post #20 of 50
Diamond and graphene are both fantastic heat conductors....but I'm not sure how well either would do in a water cooling system as the interface surface, they are both "non polar" materials......water being the opposite and "polar" in nature wouldn't interact well or "wet" to those types of surfaces.
Edited by technogiant - 3/25/13 at 11:21am
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