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Epic cooling Experiment with graphene.

post #1 of 46
Thread Starter 
Hey guys. i'm tired of waiting for graphene cooling products
so i have sharpen My sword , to slice the pie of this miracle material and feel the graphene revolution.


i have successfully made huge amounts of graphene from pencil lead. but quality was poor .
and i could not find a useful way to put it in cooling .




so i did order :
(175 ml) of Water base Single Layer Graphene Oxide
And
100ml of Ultra-high Graphene Nanoplatelets







My Goal is to Find the best way to exploit the high thermal conductivity of graphene




So the fist step to do a successful experiment is to find out what you have in hand :


-graphene is a 2D material : you cant make a 3D block of it like copper or other material...



Graphene is Extremely High Thermal Conductivite : The RT thermal conductivity in the range 1750 – 5800 W/mK (copper silver range : 300-450)

Graphene Oxide is not Conductivite and have a low Thermal Conductivity , However there's a lot of Easy Reduction of Graphene Oxide and Gain back the Thermal Conductivity of Graphene thru Heat (100°c cooking for a long time , Light : Camera Flash or UV , Or CVD )

Coating any metal with Graphene Oxide or Graphene makes it corrosion proof
Coating any metal with Reduced Graphene Oxide or Graphene makes it 25-50 % more Thermal Conductivite .


high quality graphene is Very expensive . 1L of high quality graphene Oxide = 1000 $

the small amount of graphene i order cost around 350-400 $ .

So i have in mind 4 Ways to make this Cooling Experiment worth the money i spent.

1 ) electrolysis coating of the copper Cpu block




although i never heard electrolysis coating with graphene but i will give it a try with the graphene Oxide.
the basic method is to test with a copper tube in the first pole and in the other pole i will use a copper tube coated with graphene Nanoplatelets and i will dip them in a graphene Oxide CuSo4 solution and play with the voltage to make copper forme on the graphene layer and if copper is successfully formed i will put an other graphene layer and try the same process
until a good copper graphene Sandwich is at hand
graphene Sandwich copper-graphene is about 50% stronger than titanium, or about three times as strong as structural aluminium alloys.
copper graphene Sandwich :
Quote:
After examining the grain sizes in copper before and after adding graphene, the researcher found that chemical vapor deposition of graphene conducted at high temperature stimulates grain size growth in copper films. The larger grain sizes in copper coated with graphene results in better heat conduction. http://ucrtoday.ucr.edu/20982



2) graphene Oxide simple Coating (dip coating method or spin coating )

using graphene Oxide i will Coat the copper block and cook is in a microwave at 100 °c

this will give us a bad thermal conductivity yet it's better than copper tongue.gif



3) Nanofluid base graphene .
graphene is very expensive
so using a small loop of graphene Nanofluid
using Plate Heat Exchanger to pass the heat to a water loop

what a Plate Heat Exchanger :
Quote:
Used in various industries, plate heat exchangers provide highly efficient heat transfer between two liquids without allowing them to mix. Koolance plate heat exchangers are among the most compact and cost effective available.
The HXP-193 is made of copper-brazed stainless steel and plated externally in nickel. A detachable heavy steel mounting bracket and screws are included. G 3/8 BSP threads.




4) a sample thermal paste based on graphene


first and most important thing i'm here for is To hear your ideas and to seek help from your beautiful minds
Mod's that overclock.net membres have made are clever and smart . so there's not better place than here to find help



Edited by HitMe - 3/18/14 at 10:41am
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post #2 of 46
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i got my order today smile.gif
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post #3 of 46
Thread Starter 
First try sample coating of graphene butyl acetate ( this ***** is toxic and my eyes burns and My nose is pretty irritated )

the coating did stick at first , than i decided to sand it with a sandpaper after 20-30 times the layer is gone , thats pretty good for 5 minutes of drying time

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post #4 of 46
Quote:
Originally Posted by HitMe View Post

First try sample coating of graphene butyl acetate ( this ***** is toxic and my eyes burns and My nose is pretty irritated )

the coating did stick at first , than i decided to sand it with a sandpaper after 20-30 times the layer is gone , thats pretty good for 5 minutes of drying time

Try using a dust mask or preferably a surgical mask and some elasticated goggles that should stop as much chemicals getting to your eyes and mouth area.
post #5 of 46
For your thermal paste option could you not buy a tube a paste and mix it with the graphene.
post #6 of 46
Thread Starter 
Quote:
Originally Posted by richie_2010 View Post

For your thermal paste option could you not buy a tube a paste and mix it with the graphene.
i will try that with ic diamond 7

Quote:
Originally Posted by KaffieneKing View Post

Try using a dust mask or preferably a surgical mask and some elasticated goggles that should stop as much chemicals getting to your eyes and mouth area.

i have stopped doing coating with the graphene base acetate ,i did not noticed the "Solvent: N-Butyl acetate" in the web site .
so i did give a small try with graphene oxide it's water based

i have only one way yo make reduced graphene oxide , i would call this the "Barbecue coating method" tongue.gif
on a kerosene heater , i have placed the copper block after i have cleaned it with acetone and vinegar .
then , i have startred to paint the surface with a small painting brush .

results was extraordinary ..... after a couple of hundred full surface brushing
a gray color start to appear :
and the final result strong layer of pure graphene is formed , in the previous try with graphene-acetate the coating worn off very fast with sandpaper

this time is solid :









Edit :after an intense polishing with 5000 sandpaper the graphene still there and the block became a mirror-like surface ;




Edited by HitMe - 3/19/14 at 3:55pm
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post #7 of 46
Quote:
Originally Posted by HitMe View Post

i will try that with ic diamond 7
i have stopped doing coating with the graphene base acetate ,i did not noticed the "Solvent: N-Butyl acetate" in the web site .
so i did give a small try with graphene oxide it's water based

i have only one way yo make reduced graphene oxide , i would call this the "Barbecue coating method" tongue.gif
on a kerosene heater , i have placed the copper block after i have cleaned it with acetone and vinegar .
then , i have startred to paint the surface with a small painting brush .

results was extraordinary ..... after a couple of hundred full surface brushing
a gray color start to appear :
and the final result strong layer of pure graphene is formed , in the previous try with graphene-acetate the coating worn off very fast with sandpaper

this time is solid :



Edit :after an intense polishing with 5000 sandpaper the graphene still there and the block became a mirror-like surface

Could you not use a blow torch? Like a cooks one? Obviously if you don't have access to one this isn't helpful! Might be easier and safer to replicate depending on how hot you need it to get? Results look good biggrin.gif
post #8 of 46
Thread Starter 
Quote:
Originally Posted by KaffieneKing View Post

Could you not use a blow torch? Like a cooks one? Obviously if you don't have access to one this isn't helpful! Might be easier and safer to replicate depending on how hot you need it to get? Results look good biggrin.gif
i used this heater


it was quick test smile.gif

blowtorch are unavailable in my country frown.gif
using the blow torch will damage the graphene sheets

i will try with the pcb heating plate tomorrow or with the heat gun
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post #9 of 46
i'm assuming you already know they sell graphen thermal paste.

EDIT: also the who beautiful minds things comes off a bit "odd" also Overclock.net also has some of the most misinformed and immature users as well.

that said graphene is some pretty darned cool stuff.
Edited by cdoublejj - 3/19/14 at 4:52pm
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post #10 of 46
Thread Starter 
Quote:
Originally Posted by cdoublejj View Post

i'm assuming you already know they sell graphen thermal paste.

EDIT: also the who beautiful minds things comes off a bit "odd" also Overclock.net also has some of the most misinformed and immature users as well.

that said graphene is some pretty darned cool stuff.
some minds like Kevan : Zawarudo wink.gif too bad we lost him :'( .
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