Sublimation Phenomena in H451 Graphite

摘要

H451 graphite was sublimed and impurity migration and sublimation behavior examined with a proton microprobe analyzer. Impurities migrate down thermal gradients during heating and are released at free surfaces. They are deposited on cooler surfaces and may form compounds. Sublimed graphite also deposits in cooler regions forming a hard graphitic mass. (ERA citation 04:042902)