Analysis of the formation mechanism of TiC particles produced by in situ reaction in molten aluminum

IMR OpenIR

	Analysis of the formation mechanism of TiC particles produced by in situ reaction in molten aluminum
	Yang, B ; Wang, YQ ; Zhang, J ; Zhou, BL
通讯作者	Yang, B()
	1997-12-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	26 期号:6 页码:12-17
摘要	The formation mechanism to TiC particles formed by in situ reaction in molten aluminum is studied by means of XRD, EPMA, TEM and SEM techniques in this paper. The results reveal that (1) the heat liberated by the reaction 3Al((1))+Ti-(s)-->Al3Ti can ignite the reaction Ti+C-->TiC; (2)diffusion or/and solution-precipitation mechanisms, two well-known mechanisms of TiC particle formation in Self-propagating High-temperature Synthesis(SHS), are thought to be in operation. At lower temperatures, the reaction leading to TiC particle formation is controlled by a diffusion mechanism of relatively slower velocity. In this regime, the aluminum powders melt with increasing temperature of the preform, thereby igniting TiC particle reaction. At the higher temperatures, the reaction Ti+C-->TiC is controlled by the solution-precipitation mechanism, i.e. the diffusion and solution-precipitation mechanisms are both present in this regime.
关键词	TiC/Al composite in situ reaction TiC particulate formation mechanism
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000071445800003
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计	被引频次：4[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/321006/107522
专题	中国科学院金属研究所
通讯作者	Yang, B
作者单位	1.Acad Sinica, Inst Met Res, Shenyang 110015, Peoples R China 2.Nanchang Univ, Nanchang 330029, Peoples R China 3.Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China
推荐引用方式 GB/T 7714	Yang, B,Wang, YQ,Zhang, J,et al. Analysis of the formation mechanism of TiC particles produced by in situ reaction in molten aluminum[J]. RARE METAL MATERIALS AND ENGINEERING,1997,26(6):12-17.
APA	Yang, B,Wang, YQ,Zhang, J,&Zhou, BL.(1997).Analysis of the formation mechanism of TiC particles produced by in situ reaction in molten aluminum.RARE METAL MATERIALS AND ENGINEERING,26(6),12-17.
MLA	Yang, B,et al."Analysis of the formation mechanism of TiC particles produced by in situ reaction in molten aluminum".RARE METAL MATERIALS AND ENGINEERING 26.6(1997):12-17.