Isnt this Hoot's Dream block?

JamesAvery22 · 04-12-2005, 10:39 AM

http://www.ltnt.ethz.ch/researchprojects.php?id=13

Linked from http://www.frostytech.com/

Hoots "I have a dream" block except aluminum instead of copper. man wouldnt that al foam disintegrate after a few weeks?

nikhsub1 · 04-12-2005, 11:48 AM

Yeah that seems to be the general concept IIRC.

Hoot · 04-12-2005, 10:39 PM

Actually, fate has allowed me to cross paths with a source for a small (one blocks worth) amount of the copper equivalent to that stuff. It's taking "the slow boat from China" getting here. In the mean time I have to come up with a way to either bond it to a plate or plate up one face until its thick enough to lap flat. Both are daunting tasks as I'm told it melts quite easily when trying to silver solder it to a plate, not to mention the wicking issue. I'm told it loves sucking solders better than tinned braid. When it eventually arrives, I post a picture. Unfortunately, I am sworn to secrecy as to the source or I'd gladly put you on to it.

It is not my first choice as a media due to its low mass as opposed to sintered beads, but I had the opportunity to get some to play with and couldn't say no.

Hoot

BillA · 04-13-2005, 09:01 AM

interesting project Hoot

JamesAvery22 · 04-13-2005, 09:54 AM

Im guessing laying out a very thin layer of AS epoxy on a copper/silver base then just putting the sintered copper on the epoxy would create a horrible contact in terms of thermal conductivity?

killernoodle · 04-13-2005, 10:07 AM

How much does this stuff compress? Is there no possibility of just pressing it on there slightly between two plates?

What about trying to mount it SMD style with a hot air bath with just the base tinned (very thin layer of course)?

How was it mounted to that aluminum block in the first link?

04-12-2005, 10:39 AM	#1
JamesAvery22 Cooling Savant Join Date: May 2004 Location: Northern VA Posts: 383	Isnt this Hoot's Dream block? http://www.ltnt.ethz.ch/researchprojects.php?id=13 Linked from http://www.frostytech.com/ Hoots "I have a dream" block except aluminum instead of copper. man wouldnt that al foam disintegrate after a few weeks? __________________ Stabbing. My Heatware

04-12-2005, 11:48 AM	#2
nikhsub1 c00ling p00n Join Date: Jun 2002 Location: L.A. Posts: 758	Yeah that seems to be the general concept IIRC. __________________ :-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:'``':-.,_,.-: E6700 @ 3.65Ghz / P5W DH Deluxe / 2GB 667 TeamGroup / 1900XTX PC Power & Cooling Turbo 510 Deluxe Mountain Mods U2-UFO Cube Storm G5 --> MP-01 --> PA 120.3 --> 2x DDC Ultras in Series --> Custom Clear Res "Artificial intelligence is no match for natural stupidity." 1,223,460+ Ghz Folding@Home aNonForums :-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:

04-12-2005, 10:39 PM	#3
Hoot Cooling Neophyte Join Date: Dec 2002 Location: Twin Cities Posts: 67	Actually, fate has allowed me to cross paths with a source for a small (one blocks worth) amount of the copper equivalent to that stuff. It's taking "the slow boat from China" getting here. In the mean time I have to come up with a way to either bond it to a plate or plate up one face until its thick enough to lap flat. Both are daunting tasks as I'm told it melts quite easily when trying to silver solder it to a plate, not to mention the wicking issue. I'm told it loves sucking solders better than tinned braid. When it eventually arrives, I post a picture. Unfortunately, I am sworn to secrecy as to the source or I'd gladly put you on to it. It is not my first choice as a media due to its low mass as opposed to sintered beads, but I had the opportunity to get some to play with and couldn't say no. Hoot __________________ DFI LP UT NF4 Ultra-D 7.04-3 Bios A64 3700+ San Diego 11x257 (2827 Mhz) @ 1.57Vcore 2x1Gb Crucial Ballistix 7:6 (300 Mhz) 3-3-3-8-1T @ 2.77V Connect 3D x850xt 620/625 2x WD 36GB Raptors in Raid0 DIY Jet Impingement WB on CPU / Pipecap WB on GPU Shrouded Camaro Heater Core / Swiftech MCP655 Pump Antec P-160 Tower / Seasonic S12 600W PSU MAXIM 6658 Thermal Diode Reader Moderator at OCForums

04-13-2005, 09:54 AM	#5
JamesAvery22 Cooling Savant Join Date: May 2004 Location: Northern VA Posts: 383	Im guessing laying out a very thin layer of AS epoxy on a copper/silver base then just putting the sintered copper on the epoxy would create a horrible contact in terms of thermal conductivity? __________________ Stabbing. My Heatware

04-13-2005, 10:07 AM	#6
killernoodle Thermophile Join Date: Sep 2002 Location: Charlotte, NC Posts: 1,014	How much does this stuff compress? Is there no possibility of just pressing it on there slightly between two plates? What about trying to mount it SMD style with a hot air bath with just the base tinned (very thin layer of course)? How was it mounted to that aluminum block in the first link? __________________ I have a nice computer.

04-13-2005, 09:01 AM	#4
BillA CoolingWorks Tech Guy Formerly "Unregistered" Join Date: Dec 2000 Location: Posts: 2,371.493,106 Posts: 4,440	interesting project Hoot

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