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연구논문초록(’81-’90) : 저 산소압과 고온에서 크롬카바이드와 산소의 반응
강성군,백영남,허동옥 한국부식학회 1991 Corrosion Science and Technology Vol.20 No.1
The oxidation rate of chromium carbide has been measured continuously using thermogravimetric analysis at different oxygen pressures ranging from 1.33×10^(-2) to 2.67×10^(-1)Pa O₂ at 1000- 1300℃. The oxidation of pure chromium has also been studied between 1000-1300℃ under 6.67×10^(-2)Pa O₂ and compared with that of chromium carbide. The oxidation of chromium carbide showed a linear behavior which was different from that, of chromium. The oxidation rate of chromium carbide increased with increasing temperature and oxygen pressure was lower than of pure chormium. Above 1200℃, the volatile oxide was formed and evaporated causing a weight loss. The compositions and morphorlogy of the oxide were studied with X-ray diffractometer and scanning electron microscope, respectively.