| SiCP/ZA22 复合材料界面反应层形成机制 |
| |
| 引用本文： | 胡海明,张维平,胡汉起.SiCP/ZA22 复合材料界面反应层形成机制[J].复合材料学报,1998,15(2):27-30. |
| |
| 作者姓名： | 胡海明 张维平 胡汉起 |
| |
| 作者单位： | 1. 北京工业大学材料系,北京,100022
2. 北京科技大学材料学院,北京,100083 |
| |
| 基金项目： | 北京市青年科技骨干培养基金，， |
| |
| 摘 要： | 通过电镜观察和扫描能谱分析, 发现在SiCP/ ZA 22复合材料中,SiC 颗粒和ZA 22合金富铝相α-A l 两相界面上存在着层状反应物MgAl2O4, 并对其产生条件进行了分析。结果表明: 在该复合材料制备温度范围内满足产生MgAl2O4的热力学条件, 反应层厚度符合S = A t 规律, 最终反应物量主要与合金中的M g 含量以及SiC 颗粒表面的SiO2层厚度有关。
|
| 关 键 词： | 金属复合材料 SiC 颗粒 界面 ZA 22合金 |
FORMATION MECHANISM OF INTERFACIAL REACTION LAYER IN SiCP/ZA22 COMPOSITES |
| |
| Hu Haiming,Zhang Weiping,Hu Hanqi.FORMATION MECHANISM OF INTERFACIAL REACTION LAYER IN SiCP/ZA22 COMPOSITES[J].Acta Materiae Compositae Sinica,1998,15(2):27-30. |
| |
| Authors: | Hu Haiming Zhang Weiping Hu Hanqi |
| |
| Affiliation: | 1. Beijing Polytechnic University, Beijing 100022;
2. Beijing University of Science &|Technology, Beijing 100083 |
| |
| Abstract: | Some MgAl2O4 reaction layers were discovered on the interface of SiCP/α-Al in SiCP/ZA22 composites with STEM analyses and TEM observations, and the formation conditions were discussed. The results showed that the chemical reaction could take place spontaneously in thermodynamics within the range of temperature in which the composites was fabricated, the thickness of the reaction layer grew according to S=A t and the amount mainly depended on Mg content in the matrix as well as the thickness of SiO2 on the surface of SiCParticles. |
| |
| Keywords: | metallic matrix composites SiC particle interface ZA22 alloy |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《复合材料学报》浏览原始摘要信息 |
|
点击此处可从《复合材料学报》下载全文 |
|
