High temperature oxidation of chromium with nanometric ceria sol-gel   coating

doi:10.1016/j.cclet.2008.09.038

CORC > 北京大学 > 环境科学与工程学院

	High temperature oxidation of chromium with nanometric ceria sol-gel coating
	Jin, Hui Ming ; Zhang, Lin Nan
刊名	中国化学快报英文版
	2008
关键词	Nano-materials Sol-gel Stress Ceria Oxidation OXIDE-FILMS GROWTH KINETICS OXYGEN YTTRIUM
DOI	10.1016/j.cclet.2008.09.038
英文摘要	Isothermal oxidation behavior of chromium with and without nanometric sol-gel CeO(2) coating is studied at 1000 degrees C in air. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) are used to examine the surface morphology and microstructure of their oxide films. It is found that ceria coating greatly improves the anti-oxidation property of chromium. Laser Raman spectrometer and X-ray diffraction spectrometer (XRD) are also used to study the stress level in oxide films formed on ceria-coated and ceria-free Cr. The difference in oxidation behavior is mainly attributed to the fact that ceria greatly reduces the growth speed and grain size of Cr(2)O(3) film, and this fine grain-sized Cr(2)O(3) film probably has better high temperature plasticity, i.e. oxide film can relieve parts of compressive stress by means of creeping. XRD and Raman testing results both show the stress declination due to nano-CeO(2) application, and their deviation is analyzed concerning to the rare earth effect. (C) 2008 Hui Ming Jin. Published by Elsevier B. V. on behalf of Chinese Chemical Society. All rights reserved.; Chemistry, Multidisciplinary; SCI(E); 中国科技核心期刊(ISTIC); 0; ARTICLE; 12; 1504-1508; 19
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/247753]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Jin, Hui Ming,Zhang, Lin Nan. High temperature oxidation of chromium with nanometric ceria sol-gel coating[J]. 中国化学快报英文版,2008.
APA	Jin, Hui Ming,&Zhang, Lin Nan.(2008).High temperature oxidation of chromium with nanometric ceria sol-gel coating.中国化学快报英文版.
MLA	Jin, Hui Ming,et al."High temperature oxidation of chromium with nanometric ceria sol-gel coating".中国化学快报英文版 (2008).