Have diamonds found their way into other industrial cooling solutions? With the research into gem grade diamonds, I have been expecting cheap ugly synthetic diamonds to be used in more products. I have long joked that I want a diamond frying pan.
rbanffy•2d ago
> I have long joked that I want a diamond frying pan
As long as you don’t use it on a gas stove, you should be fine.
kees99•5h ago
Why? Diamond has very low thermal expansion, so no risk of stress/embrittlement/cracks from uneven heating.
Or you mean it'll catch fire? Also not a concern. That is supposed to happen at a temperature well above anything useful for cooking.
LtdJorge•4h ago
I think because it will burn your hand?
rbanffy•4h ago
It’s safe to assume the handle is made from something else.
rbanffy•4h ago
The temperature of the blue flame on a stove should be above 1000 Celsius, well above what’s required to oxidise diamonds. They won’t catch fire, but your diamond pan will erode. Once you remove it from the flame, it won’t continue “burning”.
Should be safe on electrical stoves though.
kees99•3h ago
Would that >1000°C reach the surface though?
There are some heady boundary-layer effects and temperature/temp-conductivity gradient physics involved here. For simplicity sake, consider a plastic [1] bag full to the brim with water, held over open flame. Will bag melt (oxidize, erode)?
[1] polyethylene melts around 120-ish °C and ignites around 220-350 °C (sources vary)
Not any more, their quality has increased recently. Not that I care, wife and I did without them during our engagement.
jrk•2h ago
I think the point was not that gem-grade synthetic diamonds are ugly, but that, as industry masters gem-grade production, presumably below-gem-grade production (“ugly synthetic diamonds”) would become cheap enough to deploy in more engineering settings where diamond’s other unique properties were the key concern.
Yossarrian22•1h ago
I’m surprised nobody has done a phone screen yet
gpm•56m ago
3D printer nozzles, which is sort of the opposite (industrial heating products).
Part of the argument is that better heat conduction means that you can run the nozzle cooler resulting in less heat conduction to the cold side (above where you want the filament to melt) so I guess its "cooling" in a sense too.
Nothing new, Applied Diamond has made this stuff for several years and it is incredible. Imagine putting a 15w LED on a typical 20mm star board made of diamond - you do not need a heat sink. Just minor air flow over the package is enough.
A little unlike IEEE to be nearly half a decade out of the loop.
0cf8612b2e1e•4d ago
rbanffy•2d ago
As long as you don’t use it on a gas stove, you should be fine.
kees99•5h ago
Or you mean it'll catch fire? Also not a concern. That is supposed to happen at a temperature well above anything useful for cooking.
LtdJorge•4h ago
rbanffy•4h ago
rbanffy•4h ago
Should be safe on electrical stoves though.
kees99•3h ago
There are some heady boundary-layer effects and temperature/temp-conductivity gradient physics involved here. For simplicity sake, consider a plastic [1] bag full to the brim with water, held over open flame. Will bag melt (oxidize, erode)?
[1] polyethylene melts around 120-ish °C and ignites around 220-350 °C (sources vary)
galangalalgol•1h ago
mjevans•44m ago
PunchyHamster•38m ago
Atomic_Torrfisk•5h ago
Not any more, their quality has increased recently. Not that I care, wife and I did without them during our engagement.
jrk•2h ago
Yossarrian22•1h ago
gpm•56m ago
Part of the argument is that better heat conduction means that you can run the nozzle cooler resulting in less heat conduction to the cold side (above where you want the filament to melt) so I guess its "cooling" in a sense too.