Chromium oxycarbide (Cr2CO) films were deposited on stainless steel and cop
per plates via plasma-assisted chemical vapor deposition. The films were he
ated to 1073 K under high-vacuum conditions, to examine the high-temperatur
e stability of the films. X-ray diffractometry revealed that the films deco
mposed to a mixed structure of Cr2O3 and Cr3C2. Thermogravimetric analysis
and differential thermal analysis revealed that the decomposition occurred
in the temperature range of 858-910 K.