| Al_2O_3/Al复合材料反应生成技术 |
| |
| 引用本文： | 朱正吼,葛振寅.Al_2O_3/Al复合材料反应生成技术[J].兵器材料科学与工程,1998,21(2):37-41. |
| |
| 作者姓名： | 朱正吼 葛振寅 |
| |
| 作者单位： | 南京航空航天大学 |
| |
| 摘 要： | 研究运用ＸＤＴＭ法制备金属基复合材料工艺，成功地制备了Ａｌ２Ｏ３（Ｐ）／Ａｌ复合材料。试验证明，粒径１０～１５μｍ的ＳｉＯ２粉末与Ａｌ粉制成的坯体，在６００℃保温３ｈ时反应能全面进行，但直至保温４ｈ时反应仍不彻底；当保温时间延长至６ｈ后，生成的Ａｌ２Ｏ３粒子中Ｓｉ含量极小，反应彻底完成。反应生成的Ｓｉ富集在Ａｌ２Ｏ３粒子周围的基体中，以细小、球形的结晶体形式析出。生成的Ａｌ２Ｏ３粒子与基体的界面结合良好。同时对反应机理和反应对基体的影响也作了初步的探讨
|
| 关 键 词： | 金属基复合材料 反应生成Al_2O_3 |
REACTIVE SYNTHESIS OF Al 2O 3(p)/AL MATRIX COMPOSITES |
| |
| Zhu Zhenghou,Material Dept of Nanjing University of Aeronautics & Astronavtics,Nanjing ,Ge Zhenyin,Yi Feng.REACTIVE SYNTHESIS OF Al 2O 3(p)/AL MATRIX COMPOSITES[J].Ordnance Material Science and Engineering,1998,21(2):37-41. |
| |
| Authors: | Zhu Zhenghou Material Dept of Nanjing University of Aeronautics & Astronavtics Nanjing Ge Zhenyin Yi Feng |
| |
| Affiliation: | Zhu Zhenghou,Material Dept of Nanjing University of Aeronautics & Astronavtics,Nanjing 210016,Ge Zhenyin,Yi Feng |
| |
| Abstract: | The XD TM technology for metallic composites is researched, and the Al 2O 3(p)/Al composites have been successfully formed. The experiments show that the compound consisting of Al powders and SiO 2 powders whose diameter is about 10～15μm,at 600℃ for 3h, can wholly cause reaction, but not to be completed when the reaction has been done for 4h. The formed Al 2O 3 particles include few Si atoms and the reaction has been fully completed at 600℃ for 6h. The matrixs round Al 2O 3 particles rich in Si atoms in the form of slight and spheroical crystal. The interface between Al 2O 3 particles and Al matrix is good. In the meantime, the mechanism of reaction and the influence of reaction on matrix have been also primarily studied. |
| |
| Keywords: | metallic composites reaction synthesis Al 2O 3 particles |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
