H. Wiame et al., THERMAL-OXIDATION UNDER OXYGEN OF ZIRCONIUM NITRIDE STUDIED BY XPS, DRIFTS, TG-MS, Journal of the European Ceramic Society, 18(9), 1998, pp. 1293-1299
The studies of oxidation of nitrides or oxynitrides compounds are impo
rtant since their electrical, thermal, catalytical and reactional prop
erties are drastically modified by the oxidation layer encountered on
top of these ceramics. In this paper we present the thermal oxidation
of ZrN under O-2, in order to have a better understanding of the inter
mediate species encountered during the reaction, in the frame of low t
emperature nitridation of ceramics. The analysis of gas reaction produ
cts during oxidation and the confrontation of XPS and DRIFTS results o
n partially oxidized samples allow to evidence the formation of a stab
le Zr-N-N-O-Zr intermediate. (C) 1998 Elsevier Science Limited. All ri
ghts reserved.