LMG Should Reproduce This Graphene Production Experiment For Cooling -- and Science!

[Googolbyte]

Article: https://www.abc.net.au/news/science/2017-01-31/scientists-cook-up-super-strong-graphene-out-of-soybean-oil/8223686
Experiment: https://www.nature.com/articles/ncomms14217

Assuming the finished product looks the same, i would love to see what would happen if they applied the graphene film directly onto a delidded CPU and then allowed for the heat transfer to go directly onto the heatsink. Better yet, use that WC IHS they reviewed a little while back and see if they can get even lower temps at 5GHz on the same CPU they tested originally.

Edit: They reviewed a product!

 

[SkyHound0202]

Seriously, if they want to make Graphene sheet, the could have gone with the "Geim & Novoselov" method of using adhesive tape to pull graphene sheets away from graphite and transfer them onto silicon wafers, which is much cheaper and easier to accomplish.

 

And if they were able to produce graphene by any means necessary, it still won't be used as a great thermal interface material either. Thermal conductivity parallel to the graphene plane is several orders of magnitude higher than that perpendicular to the graphene plane. (See this research article) In other words, a single sheet of graphene will have great horizontal thermal conductivity but poor vertical thermal conductivity. Meaning when applied as a thermal pad, it would function like a vapor chamber that can spread heat evenly and quickly, but cannot transfer heat between surface fast enough.

[Spuriae]

• Graphene's exceptional properties only apply within the monolayer. Transitions between layers are much less impressive – worse conductivity than conventional thermal paste.
• An extra graphene film attached to a CPU is just another layer of material with nonzero thermal resistivity that heat has to travel through. Same reason thermal impedance is more important than thermal conductivity for actual thermal performance; it's easier for heat to travel through less material than through more.
• Graphene is perfectly flat. Flat solids cannot fill voids like proper thermal compound. Indium foil can be used for thermal interfacing because it is malleable, which graphene isn't.

[Googolbyte]

And a year later, they're reviewing a product!