Yoon, JK Lee, KH Kim, GH Han, JH Doh, JM Hong, KT 2024-01-21T06:43:10Z 2024-01-21T06:43:10Z 2021-09-02 2004-07 1345-9678 https://pubs.kist.re.kr/handle/201004/137451 The low-temperature cyclic oxidation resistance of MoSi2/19.3 vol% SiC nanocomposite coating formed on a Mo substrate in air at 500degreesC was investigated and compared with that of the monolithic MoSi2 coating using field emission-scanning electron microscopy (SEM) and cross-sectional transmission electron microscopy (XTEM). The nanocomposite coating was produced by a prior carburizing process followed by chemical vapor deposition of Si on a Mo substrate. While the accelerated oxidation behavior was observed for the monolithic MoSi2 coating after the incubation time of about 454 cycles, no pest oxidation was observed in the nanocomposite coating. The excellent low-temperature cyclic oxidation resistance of nanocomposite coating resulted from the deceleration of further inward diffusion of oxygen by formation of relatively dense SiO2 and Mo9O26 composite oxide scale through the preferential oxidation of SiC particles followed by oxidation of MoSi2 phase. English JAPAN INST METALS CHEMICAL-VAPOR-DEPOSITION MOLYBDENUM DISILICIDE GROWTH-KINETICS DIFFUSION SI COMPOSITES TUNGSTEN LAYERS PEST Low-temperature cyclic oxidation behavior of MoSi2/SiC nanocomposite coating formed on mo substrate Article 10.2320/matertrans.45.2435 1 MATERIALS TRANSACTIONS, v.45, no.7, pp.2435 - 2442 MATERIALS TRANSACTIONS 45 7 2435 2442 scie scopus 000223245300081 2-s2.0-4544381185 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article CHEMICAL-VAPOR-DEPOSITION MOLYBDENUM DISILICIDE GROWTH-KINETICS DIFFUSION SI COMPOSITES TUNGSTEN LAYERS PEST MoSi2/SiC nanocomposite coating low-temperature cyclic oxidation resistance molybdenum