UB Material Engineer Invents Thermal Paste

[Hawk]

a new thermal paste? ? ? ? I woulder how it will compare to AS3. . . . .


http://www.buffalo.edu/reporter/vol34/vol34n32/articles/Chung.html

[RotorHead]

Have to keep my eye on that....interesting :)

[Chuck232]

:eek: Wow....

[eva2000]

interesting currently testing

Nanotherm PCM+/EXP and XTC Silver thermal paste
Shin Etsu G751 thermal paste

and comparing to AS3

Nanotherm PCM+ is so different, it's like water in a droplet tube!

[Flamer]

just a bit off- topic :)
i was just wondering does anyone know what the most conductive metals are as far as heat, copper is great for electricity but i think gold and silver are better. but it seems to me that as3 eventhough is getting beat in test with other stuff is one the right track when making thermal paste out of metals. Maybe they cold make a gold paste lol.
Well i was just wondering if nickel would make a better sink then copper, and nickel is still kinda cheap. One would have to take out a loan for a silver sink.

[eva2000]

Originally posted by samcolt
just a bit off- topic :)
i was just wondering does anyone know what the most conductive metals are as far as heat, copper is great for electricity but i think gold and silver are better. but it seems to me that as3 eventhough is getting beat in test with other stuff is one the right track when making thermal paste out of metals. Maybe they cold make a gold paste lol.
Well i was just wondering if nickel would make a better sink then copper, and nickel is still kinda cheap. One would have to take out a loan for a silver sink. silver is better than copper but alot more expensive

[Mikki]

RotorHead knows a bit about that stuff...gold or silver would be great, even a silver/nickel alloy would probably be better than what we're using right now....:)

[Chuck232]

But it would also cost a lot more than coppr no?

[Mikki]

Oh yeah.....:eek2:

[Flamer]

Well silver is like $4.50 a oz and copper is 77 cent2 a pound i guess silver would make a very pricey heatsink :)

[Mikki]

I'll bet if there were a not-outrageously priced silver/nickel alloy heatsink which made a 5 degree difference people would buy it....;) We're silly like that....:p

[Flamer]

Originally posted by Mikki
I'll bet if there were a not-outrageously priced silver/nickel alloy heatsink which made a 5 degree difference people would buy it....;) We're silly like that....:p

Well i am thinking about melting down some silver coins as we speak and making a sink:D now that would be bleedin edge lol

And your right Mik i would buy one if they were around so i guess i am just silly:p

And does anyone know how much a swifty wieghs i need to go get the right amount of coins :) j/k

[Flamer]

this should make alot of heatsinks :)

http://www.bulliondirect.com/catalog/showProductDetail.do?id=142534557&category=1

[pointreyes]

What about a ceramic HS? And replace the cpu heatspreader with ceramic top? Would this improve the heat transfer or make it worst?

[Flamer]

Originally posted by pointreyes
What about a ceramic HS? And replace the cpu heatspreader with ceramic top? Would this improve the heat transfer or make it worst?

pointreyes,

i have no idea, but when i think of ceramic i think of a insulator.

[Mikki]

I think that would make it worse...that sparks an idea tho pointreyes...surely there are some rockin polymers or something which could be better than metal, some synthetic stuff maybe? Hmmm...:p

[Flamer]

hehehe chemistry on the bleeding edge :)

[pointreyes]

What I find interesting and it does make sense is that we are always focusing on the top of the proc. However, since heat goes up, imagine using a ceramic insulator (thanks, samcolt for reminding me of what ceramic does :) ) to force heat to go up and yet also force some type of coolant on the underside that ensures that even the layers on the bottom of the proc runs cool. Basically find a design that forces the full proc to run very cool at all layers of the proc. Sorry, a full-moon made me sleep about as much as Mikki did last night. :uplate: :p

[Mikki]

Very good point pointreyes...one of the extreme mods (I know Thugs will be doing this with his soon and so will I) is to pull the IHS off the chip. This of course allows air around the core and improves cooling quite a bit in some cases. I've also heard of people drilling a hole in the heatsink to match the hole in the IHS and this helps a bit, tho I can't say how much.

Getting a lapped heatsink right on the core is the best option we have right now, but I agree it would be pretty cool if we could get a bit more cooling underneath...:)

btw...due to the nature of this topic and the good discussion, I'm moving this to the cooling forum. :)

[RotorHead]

Listed in order from best to worst. :)

Thermal Annealed Pyrolytic Graphite 1300 W/m K
Silver 406
Copper 385
Gold 320
Aluminum 205

RH

[eva2000]

Originally posted by Mikki
I'll bet if there were a not-outrageously priced silver/nickel alloy heatsink which made a 5 degree difference people would buy it....;) We're silly like that....:p you'd be surprised how soon such a product will be on the market .. but that's all i'll say :)

[Chuck232]

Originally posted by RotorHead
Listed in order from best to worst. :)

Thermal Annealed Pyrolytic Graphite 1300 W/m K
Silver 406
Copper 385
Gold 320
Aluminum 205

RH

:eek:

What's that Thermal Annealed Pyrolytic Graphite??!!

[Hawk]

Sort of sounds like an erectile disfunctional device. . . . . :eek: :eek: :eek:


:rotflmao: :rotflmao: :rotflmao: :rotflmao: :rotflmao: :rotflmao:





Originally posted by Chuck232
:eek:

What's that Thermal Annealed Pyrolytic Graphite??!!

[RotorHead]

Originally posted by Chuck232
:eek:

What's that Thermal Annealed Pyrolytic Graphite??!!

It's a type of graphite used mainly in plasma research and other high temprature applications. it has really good thermal properties, however only along 2 plains, the 3rd direction is an insulator. Don’t know that much about it, but it sure the hell sounds cool.

RH

[Mikki]

Originally posted by eva2000
you'd be surprised how soon such a product will be on the market .. but that's all i'll say :)
I thinking teasing is against the Forum Rules, so fess up...hehe :p;)

[Mikki]

Originally posted by RotorHead
Listed in order from best to worst. :)

Thermal Annealed Pyrolytic Graphite 1300 W/m K
Silver 406
Copper 385
Gold 320
Aluminum 205

RH
I knew you'd help this discussion out....;):)

[Flamer]

Originally posted by eva2000
you'd be surprised how soon such a product will be on the market .. but that's all i'll say :)


So are you saying that there maybe some type of alloy or synthetic material heatsink that may surface soon :)

[ThugsRook]

great thread :!:

id say there has to be something better soon tho.
were on the edge of useful air/copper as it is.

smaller .09 die will only make things tougher but then again its only gonna use 1.2v so...... who knows ;)

:wave: