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Analysis of the formation mechanism of TiC particles produced by in situ reaction in molten aluminum
Yang, B; Wang, YQ; Zhang, J; Zhou, BL
Corresponding AuthorYang, B()
1997-12-01
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume26Issue:6Pages:12-17
AbstractThe 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.
KeywordTiC/Al composite in situ reaction TiC particulate formation mechanism
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000071445800003
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/107522
Collection中国科学院金属研究所
Corresponding AuthorYang, B
Affiliation1.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
Recommended Citation
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.
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