Influence of Nano-Ceria Sol-Gel Coating on Oxidation Behavior of   Chromium at 1 000 degrees C

CORC > 北京大学 > 环境科学与工程学院

	Influence of Nano-Ceria Sol-Gel Coating on Oxidation Behavior of Chromium at 1 000 degrees C
	Jin Hui-ming ; Zhou Xiao-wei ; Zhang Lin-nan
刊名	journal of iron and steel research international
	2009
关键词	nano-coating sol-gel rare earth element oxidation stress ION-IMPLANTATION OXIDE-FILMS KINETICS OXYGEN YTTRIUM ALLOYS NICKEL SCALES
英文摘要	Isothermal oxidation behavior of chromium with and without nanon sol-gel CeO(2) coating is studied at 1 000 degrees C in air. Scanning electron microscopy (SEM) and transmission electron. microscopy (TEM) are used to examine the surface morphology and microstructure of the 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. Secondary ion mass spectrometer (SIMS) is used to examine Cr, O and Ce element distribution in depth in oxide films. Results show that nano-ceria application greatly reduces the growth speed and grain size of Cr(2)O(3) film, and this fine grained Cr(2)O(3) film probably has better high temperature plasticity, i.e., oxide film relieves part of the compressive stress by means of creeping, Meanwhile, CeO(2) changes the oxide film growth mechanism from predominant cation outward diffusion to anion inward diffusion. XRD and Raman testing results both show the stress declination effect due to nano-CeO(2) application, and their discrepancy in the rare earth effect is analyzed.; Metallurgy & Metallurgical Engineering; SCI(E); 0; ARTICLE; 6; 80-85; 16
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/396224]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Jin Hui-ming,Zhou Xiao-wei,Zhang Lin-nan. Influence of Nano-Ceria Sol-Gel Coating on Oxidation Behavior of Chromium at 1 000 degrees C[J]. journal of iron and steel research international,2009.
APA	Jin Hui-ming,Zhou Xiao-wei,&Zhang Lin-nan.(2009).Influence of Nano-Ceria Sol-Gel Coating on Oxidation Behavior of Chromium at 1 000 degrees C.journal of iron and steel research international.
MLA	Jin Hui-ming,et al."Influence of Nano-Ceria Sol-Gel Coating on Oxidation Behavior of Chromium at 1 000 degrees C".journal of iron and steel research international (2009).