| SiC-Al界面Al_4C_3的生成及其控制 |
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| 引用本文： | 张永俐,罗素华. SiC-Al界面Al_4C_3的生成及其控制[J]. 材料科学与工程学报, 1998, 0(1) |
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| 作者姓名： | 张永俐 罗素华 |
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| 作者单位： | 昆明贵金属研究所 |
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| 摘 要： | 系统研究了在Ａｌ中添加Ｓｉ对控制ＳｉＣ－Ａｌ之间生成Ａｌ４Ｃ３的化学反应的作用和对ＳｉＣ－Ａｌ系统化学反应动力学的影响，以及温度对化学反应程度的影响，探讨了Ａｌ４Ｃ３生成的机理。研究表明，添加Ｓｉ于Ａｌ中使ＳｉＣ和Ａｌ之间生成Ａｌ４Ｃ３的化学反应得到有效的控制并明显影响化学反应的速度；ＳｉＣ－Ａｌ系统化学反应的程度随温度升高而增大；Ａｌ４Ｃ３的生成通过两个步骤进行，即ＳｉＣ溶解于熔融金属Ａｌ中，然后和Ａｌ发生化学反应。研究结果为用熔融金属加工技术合成无Ａｌ４Ｃ３生成的ＳｉＣ／Ａｌ复合材料提供了可靠的途径。
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| 关 键 词： | SiC－Al，Al_4C_3，化学相容性 |
The Formation and Control of Al 4C 3 at the Interface of SiC Al |
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| Zhang Yongli Luo Suhua Institute of Precious Metals in Kunming,Kunming. The Formation and Control of Al 4C 3 at the Interface of SiC Al[J]. Journal of Materials Science and Engineering, 1998, 0(1) |
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| Authors: | Zhang Yongli Luo Suhua Institute of Precious Metals in Kunming Kunming |
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| Affiliation: | Zhang Yongli Luo Suhua Institute of Precious Metals in Kunming,Kunming,650221 |
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| Abstract: | The effects of Si addition on control of the chemical reaction which forms Al 4C 3 between SiC and Al and on kinetics of the chemical reaction, and the effects of temperature on extent of the chemical reaction have been systematicaly investigated, the mechanisms of the formation of Al 4C 3 have been also studied. It is indicated that by the addition of Si the chemical reaction between SiC and molten Al can be effectively controlled, and the extent of the chemical reaction in the system of SiC Al is increased with increasing in temperature;and that the formation of Al 4C 3 is progressed through two stages, that is, dissolution of SiC into molten Al and reaction with it. |
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| Keywords: | SiC Al Al 4C 3 Compatibility. |
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