Processes taking place during formation of B-C-N ceramics by thermal treatm
ent of organic precursors were investigated using emanation thermal analysi
s (ETA), differential thermal analysis (DTA) and thermogravimetry (TG). An
additional information about thermal behavior of precursors used for prepar
ation of BC4N, BN and CNx ceramic systems by heating in argon up to 1100 de
grees C was obtained. The ETA enabled us to characterize microstructure cha
nges in the samples at in situ conditions of thermal treatment. A good agre
ement of ETA, TG and DTA results was found.