| 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 Author | Yang, B() |
| 1997-12-01 | |
| Source Publication | RARE METAL MATERIALS AND ENGINEERING
 |
| ISSN | 1002-185X |
| Volume | 26Issue:6Pages:12-17 |
| Abstract | 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. |
| Keyword | TiC/Al composite in situ reaction TiC particulate formation mechanism |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000071445800003 |
| Publisher | NORTHWEST INST NONFERROUS METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/107522 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Yang, B |
| Affiliation | 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 |
| 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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