The Closest Thing to Graphene | Pyrolytic Graphite Sheets (PGS) have Unique Thermal Properties

Today's video will be the first of many exploring the awesome thermal interface materials that are Pyrolytic Graphite Sheets, or PGS.
This is a video I've been waiting quite a while to release, where I'll introduce this graphene-like material, its unique thermal properties, and one of the ways in which I plan to use it. (I have many different ideas for using it, especially for electrochemistry)
Pyrolytic Graphite Sheets are made of highly ordered, stacked sheets of graphene, this gives them some super-unique thermal properties like having an anisotropic thermal conductivity in the 'In-Plane' direction that exceeds that of basically all metals. This is a material I found while trying to find somewhere to get Graphene sheets, and this was as close as I could get, however, as we'll learn in this video, the two may not be so dissimilar after all.
Link to the Article by HPMS Graphite: hpmsgraphite.com/pyrolyticgra...
Link to the ResearchGate Article with the Image of the Graphite Layers:
www.researchgate.net/figure/a...
Wikipedia Page on Graphitization:
en.wikipedia.org/wiki/Graphit...
Wikipedia Page on Sintering:
en.wikipedia.org/wiki/Sintering
Panasonic Industrial Website on PGS Graphite Sheets:
na.industrial.panasonic.com/p...
Article on Conductive Heat Transfer (Image source for In-Plane vs Through-Plane thermal conductivity):
conceptgroupllc.com/glossary/...

[@DonNoddingPolitely]

Great work man. Just one suggestion for us interested amateurs. When mentioning properties, it would be good if you gave some context. E.g. blah, blay has thermal conductivity of 400 W/mK. For context, copper is X and aluminium is Y W/mK. Looking forward to your next videos.

[@KeonsLab]

Oh sorry about that, I’ll definitely keep this in mind for the future when talking about all units of measure in general.

[@kamilBRX]

my new favourite channel 😃😃

[@Dragonmastur24]

imagine this as the ACTUAL heatsink, where they wrap the film in a zigzag pattern before they pyrolize it

[@Traper_T]

Today I was in university where graphen and other "2D" structures are examined, realy sick and not intuitve phenomenon take place in thats 2D repeatable sructures, now they were dealing with memeristors. Cool video and interesting topic

[@KeonsLab]

Yeah, these graphene and graphene-like materials have so many unique properties! They’re lightweight and excellent conductors of both heat and electricity. Truly a space age material.

[@Traper_T]

@@KeonsLab There were high hopes for graphene production in Poland, but as far as I know, not much came of it. (I responded to your mail)

[@Traper_T]

​@@KeonsLab Did you have notifications from E-mail or my messages just don't arrive?

[@jonathanedwards7003]

If the thermal conductivity is only good in plane then won't it be difficult to make a thermal interface out of it? (unless you cut reall small strips and stack them together to form a pad?)

[@KeonsLab]

Exactly! I don’t wanna spoil the surprise but yes, making a stack of the strips would be the best method for not only a thermal pad, but also a thin heat pipe essentially.

[@btugmr3075]

Music FLIPPER RaHuL Hello 🙏

[@btugmr3075]

Mujhe

[@btugmr3075]

Mujhe rubber ducky

[@TraperT]

Hi man, dom my next E-mails arrived?

[@SeaHay]

I'm so sorry man, i'am deletei youre emall today 😅

[@pappaflammyboi5799]

I find these graphite sheets more annoying than useful specifically because the thermal conductivity is in plane, instead of in the vertical z-axis.

[@Inertia888]

unless I'm understanding this wrong, it seems that it would be useful for shielding components, on one side of the system, from heat. ie: power section of a system is hot, and sensitive measuring devices that need to be cooler, would be shielded from the higher temps, and kept relatively cooler, than the power side of the system.

[@KeonsLab]

In my opinion what makes these really useful is the unique new applications that are possible for them more so than just using them as thermal paste replacements. I’ll be making videos on some of these applications in the near future.

[@pappaflammyboi5799]

@@KeonsLab Anisotropic heat transfer could prove useful if it was programmable. I assume someone will find a use-case, eventually. Make it as dirt cheap as recycled paper, and you might have something...

[@KeonsLab]

Oh I’ve got a use case for it’s anisotropic heat transfer alright! ;)
And you’re right, if these were just to be used as thermal pads they’d have to be cheap to make sense, but that’s not necessarily the best way to exploit its anisotropic thermal properties. I’ll be making quite a few videos on this hopefully soon, so just hang on! 😁

[@btugmr3075]

RaHuI