Oxidation of an electrodeposited Ni-Y2O3 composite film

被引：33
|
作者：
Zhou, Y. B. [1 ]
Sun, J. F. [1 ]
Wang, S. C. [1 ]
Zhang, H. J. [1 ]
机构：
[1] Heilongjiang Inst Sci & Technol, Coll Mat Sci & Engn, Harbin 150027, Peoples R China
来源：
CORROSION SCIENCE | 2012年 / 63卷
关键词：
Metal matrix composites; SEM; TEM; XRD; Oxidation; HIGH-TEMPERATURE OXIDATION; NI-CEO2; NANOCOMPOSITE; REACTIVE ELEMENTS; GROWTH-KINETICS; LA2O3; PARTICLES; PURE NICKEL; COATINGS; SCALES; MICROSTRUCTURE; RESISTANCE;
D O I：
10.1016/j.corsci.2012.06.019
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A Ni-9.5 wt.% Y2O3 composite film has been developed by codeposition of Ni and Y2O3 microparticles with an average particle size of 2.5 m onto pure Ni surfaces from a nickel sulfate. The Y2O3 microparticles were dispersed in the electrodeposited nanocrystalline Ni grains. The isothermal oxidation at 800 degrees C for 30 h and 1050 degrees C for 20 h in air showed that the as-deposited Ni-Y2O3 composite film has a superior oxidation resistance compared to the electrodeposited pure Ni film because the codeposited Y2O3 particles block the outward diffusion of nickel and change the oxidation growth mechanism of Ni. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：351 / 357
页数：7
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