HREM observations of the synthesized process of nano-sized SiC by ball milling of Si and C mixed powders

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	HREM observations of the synthesized process of nano-sized SiC by ball milling of Si and C mixed powders
	X. Y. Yang; Z. W. Huang; Y. K. Wu; H. Q. Ye
	2001
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	300 期号:1-2 页码:278-283
摘要	The synthesis of nano-sized SiC through ball milling (BM) of elemental Si and graphite mixed powders at room temperature has been reported, and detailed reaction process has been characterized by high-resolution electron microscopy (HREM). High-resolution electron microscopy (HREM) observations presented herein suggest that amorphous graphite (a-graphite), amorphous silicon (a-Si) and nano-sized crystalline Si (c-Si) with many defects are produced during BM, which is prerequisite to the reaction. In some areas, SIC is synthesized through a diffusion of C atoms into the a-Si/and c-Si. In the former, a-Si(C) forms, and then mechanically-driven crystallization of the a-Si(C) occurs to form SIG. In the latter, C atoms directly replace Si atoms to form SIC with an orientation relationship of (111)(SiC)//(111)(Si). In other areas, localized self-sustained reaction occurs to form slightly larger SIC grains. (C) 2001 Elsevier Science B.V. All rights reserved.
部门归属	chinese acad sci, inst met res, lab atom imaging solids, shenyang 110015, peoples r china.;yang, xy (reprint author), chinese acad sci, inst met res, lab atom imaging solids, 72 wenhua rd, shenyang 110015, peoples r china
关键词	Si-c System Ball Milling High-resolution Electronic Microscopy Elemental Powders Temperature Silicon Mechanosynthesis Transition
URL	查看原文
WOS记录号	WOS:000166626700032
引用统计	被引频次：45[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36869
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Y. Yang,Z. W. Huang,Y. K. Wu,et al. HREM observations of the synthesized process of nano-sized SiC by ball milling of Si and C mixed powders[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2001,300(1-2):278-283.
APA	X. Y. Yang,Z. W. Huang,Y. K. Wu,&H. Q. Ye.(2001).HREM observations of the synthesized process of nano-sized SiC by ball milling of Si and C mixed powders.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,300(1-2),278-283.
MLA	X. Y. Yang,et al."HREM observations of the synthesized process of nano-sized SiC by ball milling of Si and C mixed powders".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 300.1-2(2001):278-283.