Silicon Carbide - The subtle REVOLUTION

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Silicon Carbide - The subtle REVOLUTION

SiC is as important as battery technologies. It enables huge reductions in power loss for example, in a MOSFET diode, SiC makes it easier to achieve a thinner drift layer because of its critical breaking strength that can be a much as 10x higher than that of silicon.
This results in less electrical resistance, culminating in up to 70% reduction in conduction and switching losses at high voltages.
And high voltage we are talking about as high as 2,500 kV/cm while for silicon you are looking at most 300 kV/cm. This is possible because of its excellent thermal conductivity that is 3.2 times higher at 4.9 W/cm.K against 1.5.
Lastly the band gap, depending on the polytype, can be almost 3 times higher at 3.23 eV against 1.12 eV for silicon. This means that the SiC is less likely to suffer from current leakage thus making it ideal to work at high temperatures.
All of this translates into better electronics with a dramatic size and weight reduction along with smaller cooling systems, since SiC can operate at higher temperatures, the energy needed to maintain cooling can be reduced by up to 30% if not more.

Sources
http://www.ev-volumes.com/country/total-world-plug-in-vehicle-volumes/
https://www.pntpower.com/is-teslas-production-creating-a-sic-mosfet-shortage/
https://www.transportenvironment.org/sites/te/files/publications/2019_07_TE_electric_cars_report_final.pdf
https://www.shindengen.com/products/semi/column/basic/mosfet/mosfet_on_resistance.html
https://info.ornl.gov/sites/publications/Files/Pub57423.pdf
https://www.arrow.com/en/research-and-events/articles/silicon-carbide-the-future-of-power
https://insideevs.com/news/343256/tesla-model-3-charging-charts-reveal-details-on-v3-supercharger/
https://en.wikipedia.org/wiki/Moissanite
https://en.wikipedia.org/wiki/Edward_Goodrich_Acheson
https://en.wikipedia.org/wiki/Canyon_Diablo_(meteorite)
https://www.youtube.com/watch?v=9FGSOK5l6s0
https://www.youtube.com/watch?v=z-sFxsIafLc&t=1243s
https://www.youtube.com/watch?v=iz_QNdhFG0Q&t=184s

Image Attribution
Musée d'Histoire Naturelle de Lille / CC BY-SA (https://creativecommons.org/licenses/by-sa/4.0)

Видео Silicon Carbide - The subtle REVOLUTION канала Subject Zero Science