Pyrolytic Carbon(PyC) Coated Graphite Ring

In SiC PVT crystal growth setups, graphite parts are run at very high temperatures for long periods. VeTek’s PyC coated graphite ring is built for that kind of duty. A pyrolytic carbon layer gets deposited onto high-purity graphite via CVD. This gives the part better surface stability and fewer particles coming off during operation. You usually put it in the thermal field area to help manage vapor flow and how heat spreads inside the furnace. The coating also slows down graphite sublimation when things go above 2200°C, which makes the whole component last longer.