SOLID-STATE DISPLACEMENT REACTION OF FE AND CUO INDUCED BY MECHANICAL ALLOYING

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	SOLID-STATE DISPLACEMENT REACTION OF FE AND CUO INDUCED BY MECHANICAL ALLOYING
	T. D. Shen; K. Y. Wang; J. T. Wang; M. X. Quan
	1992
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	151 期号:2 页码:189-195
摘要	We report on studies of solid state redox reactions induced by mechanical alloying (MA). The displacement reaction in the Fe-CuO system during MA may be completed by two steps: a rapid self-sustaining combustion reaction process, followed by a gradual reaction process. High densities of point and lattice defects, as well as a fine dispersion of reactants, are introduced in the powder mixture during MA. In addition, the displacement reaction in the Fe-CuO system produces a large negative heat. This combination of factors makes the redox reaction occur in the reaction regions, accompanied by self-heating. The self-heating may raise the temperature up to ignition temperature for a combustion reaction; this ignition temperature is greatly decreased by ball-milling. Combustion then takes place. The displacement reaction may be carried out rapidly during combustion. Complete reduction of copper oxides, including the intermediate oxidation state phase, Cu2O, appearing immediately after combustion, is observed after prolonged milling, during which the reduction is gradual; a similar self-sustaining reaction mechanism works in local reaction regions.
部门归属	shen, td (reprint author), acad sinica,inst met res,state key lab rsa,shenyang 110015,peoples r china
关键词	Amorphous-alloys Powders
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/39285
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	T. D. Shen,K. Y. Wang,J. T. Wang,et al. SOLID-STATE DISPLACEMENT REACTION OF FE AND CUO INDUCED BY MECHANICAL ALLOYING[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,1992,151(2):189-195.
APA	T. D. Shen,K. Y. Wang,J. T. Wang,&M. X. Quan.(1992).SOLID-STATE DISPLACEMENT REACTION OF FE AND CUO INDUCED BY MECHANICAL ALLOYING.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,151(2),189-195.
MLA	T. D. Shen,et al."SOLID-STATE DISPLACEMENT REACTION OF FE AND CUO INDUCED BY MECHANICAL ALLOYING".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 151.2(1992):189-195.