1600W/mK cooling pad

[carlhook]

Came across this bad boy when designing a thermal interface for high power LED's.
It would be awesome if LTT team could check this out as a replacement for liquid metal or any other cooling paste. 
Conductonaut is only 73 W/mk by this site

 

I would love to try it, yet my 2600x and 120m AIO is not the best setup to see a great cooling difference. 
BIG TDP cpu + air cooler would be how I would test it as it takes the variable of water cooling out of the equation, yet probably smart to test both.

+ as this pad is 25 microns thick, the cpu and cooler surfaces have to be perfectly lapped.

 

[Enderman]

 

[For Science!]

6 minutes ago, carlhook said:

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These only have high conductivity in the a-b plane. In the relevant c plane it has only 15 W/mk

[carlhook]

35 minutes ago, For Science! said:

These only have high conductivity in the a-b plane. In the relevant c plane it has only 15 W/mk

I have no idea what are those a-b planes, where the c plane even comes in  
Can you please elaborate?

 

[carlhook]

All I can find in the datasheet is A-B plane as C axis.
A being the cpu side and B being the cooler side for instance.
C being the perpendicular axis of those planes? 

[For Science!]

Just now, carlhook said:

All I can find in the datasheet is A-B plane as C axis.
A being the cpu side and B being the cooler side for instance.
C being the perpendicular axis of those planes? 

a-b plane is basically the thermal conductivity down the plane of the sheet. (i.e. if you held the sheet one the edge, and heated the other edge). The C plane is the conditvity through the sheet itself (i.e. from one side of the sheet to the other side of the sheet).

 

So C axis is the thermal conductivity you care about. A-B plane is for the "spreading" ability of the sheet, but since there is an IHS, it doesn't really help.

[carlhook]

2 minutes ago, For Science! said:

a-b plane is basically the thermal conductivity down the plane of the sheet. (i.e. if you held the sheet one the edge, and heated the other edge). The C plane is the conditvity through the sheet itself (i.e. from one side of the sheet to the other side of the sheet).

 

So C axis is the thermal conductivity you care about. A-B plane is for the "spreading" ability of the sheet, but since there is an IHS, it doesn't really help.

Ok, understood it now. Thanks bud!
That explains the "new special" material that is the IC Graphine sheet then. 
 

[For Science!]

1 minute ago, carlhook said:

 

Yes, graphene sheets are underwhelming in performance since the sheet covers the whole IHS, bringing everything (at best) to the 15 W/mk thermal conductivity but at the same time eliminating any metal-to-metal contact  (which is better than 15 W/mk) that you would have had with conventional thermal paste (as it squeezes out, allowing for metal-to-metal contact).

 

There's another layer of this which is the presence of the IHS, making the graphene sheet further redundant, but please see below my more detailed reasoning.