The main difference between SIC crucibleand graphite crucible is their high temperature resistance, ‌ service life, ‌ thermal conductivity and oxidation sensitivity.

1.     High temperature resistance and service life: ‌ silicon carbide crucible compared with graphite crucible, ‌ has better high temperature resistance and longer service life. ‌ silicon carbide crucible can withstand higher temperatures, ‌, so it is more stable in high temperature environment, ‌ relatively long service life.

2.     Thermal conductivity: ‌ The thermal conductivity of graphite crucible is good, ‌ this makes the graphite crucible in the need for rapid heating or need good thermal conductivity applications better performance. ‌, however, ‌ this also means that the graphite crucible is susceptible to oxidation at high temperatures, ‌ resulting in a higher breakage rate. ‌

3.     Oxidation sensitivity: ‌ graphite crucible is easy to be oxidized, ‌ this means that at high temperature environment, ‌ graphite crucible breakage rate is larger, ‌ and silicon carbide crucible in this respect is better, ‌ has lower oxidation sensitivity, ‌ is more stable and reliable in long-term high temperature use.

Above all, sic crucible is superior to graphitecrucible in high temperature resistance, ‌ servicelife and oxidation sensitivity, ‌ and graphite crucible isbetter in thermal conductivity. ‌ The choice of which crucibleto use is more suitable, mainly depends on the specific application needs and working environment. ‌