采用近熔态扩散新工艺制备了SiCf /Al(5A02)铝合金基复合材料,采用透射电镜(TEM)和X射线能谱 (EDX)分析了界面产物和反应机理.与采用传统固态扩散法制备的样品相对比,样品界面处没有形成脆性相Al4C3,且Al2O3被MgO取代;而固态扩散工艺制得的样品界面处发现针状或块状的Al4C3在C涂层或附着在C涂层上的Al2O3边缘形成,并向基体中生长,破坏了界面的连续性.采用近熔态扩散法制备的样品由于合金元素Mg在从半液态冷却过程中偏聚到界面附近,并与Al2O3发生反应,生成细小的MgO颗粒,阻碍了C的扩散,并抑制了脆性相Al4C3的形成,有利于对界面有害反应的控制.
参考文献
| [1] | 朱祖铭,郭延风,石南林,朱桂秋,马通达.SiCf/Al复合材料的界面性能及机制[J].材料研究学报,2002(01):59-66. |
| [2] | 朱祖铭;石南林 .SiC/Al复合材料断裂机制的声发射研究[J].材料研究学报,1997,11(01):15-20. |
| [3] | 朱祖铭;石南林 .声发射方法测定SiCw/Al复合材料的界面强度[J].金属学报,1996,32(09):998-1002. |
| [4] | 朱祖铭;石南林 .SiC纤维表面改性对SiCw/Al复合材料界面强度的影响[J].金属学报,1996,32(09):1003-1008. |
| [5] | A. Urena;J. Rams;M.D. Escalera;M. Sanchez .Characterization of interfacial mechanical properties in carbon fiber/aluminium matrix composites by the nanoindentation technique[J].Composites science and technology,2005(13):2025-2038. |
| [6] | LAMCIN M;MARHIC C .TEM study of carbon fibre reinforced aluminium matrix composites:influence of brittle phases and interface on mechanical properties[J].Journal of the European Ceramic Society,2000,20:1493-1503. |
| [7] | 牛济泰,王慕珍,刘黎明,孔令超.扩散焊条件下Al2O3P/6061Al复合材料中氧化膜的行为[J].材料研究学报,2000(03):244-248. |
| [8] | 高性能 CVD 法 SiC 纤维的研制[J].材料导报,2000(07):53-54. |
| [9] | 石南林;刘清民 .SiC纤维的强度与表面微观形貌[J].金属学报,1990,26(03):225-228. |
| [10] | Yang HN.;Jiang WJ.;Zhang GD.;Gu MY. .INTERFACE MICROSTRUCTURE AND REACTION IN GR/AL METAL MATRIX COMPOSITES[J].Journal of Materials Science,1996(7):1903-1907. |
| [11] | 梁英教;车荫昌.无机物热力学数据手册[M].沈阳:东北大学出版社,1993 |
| [12] | 黄玉东;孔宪仁;张志谦 .界面层对纤维与基体间载荷传递能力的影响[J].复合材料学报,1996,13(03):21-24. |
| [13] | 荀飞,胡更开,黄筑平.连续变化界面层对复合材料弹性性能影响[J].复合材料学报,2004(01):134-140. |
| [14] | LONG S;FLOWER H M .Interfaces of SiC fibres and Al-5% Mg developed under systematically varied processing conditions[J].COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING,1996,27(09):703-708. |
| [15] | RATNAPARKHI P L;HOWE J M .Amorphous phase formation by solid state reaction at a diffusion-bonded Al/SiC interface[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1994,25:617-627. |
| [16] | MASSALSKI.Binary alloy phase diagrams[M].America:ASM International,1997:130-537. |
| [17] | CHEN Xiu-qin;HU Ceng-xiang .The effect of matrix alloying on the tensile strength of carbon-fibre-reinforced aluminium composites[J].Materials Science and Engineering,1986,84:171-176. |
| [18] | Joshua Pelleg;D. Ashkenazi;M. Ganor .The influence of a third element on the interface reactions in metal-matrix composites (MMC):Al-graphite system[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2000(1/2):239-247. |
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