原位合成(Al2O3+Al3Ti)P /Al复合材料的制备研究
Study on Preparation of In-situ (Al2O3+Al3Ti)P /Al Composites
张道理, 陈 刚, 赵玉涛
点击：3157次 下载：0次
作者单位：江苏大学 材料科学与工程学院, 江苏 镇江 210213
中文关键字：原位合成； 颗粒增强； (Al2O3+Al3Ti)P /Al； 显微组织
英文关键字：in-situ reaction; particle reinforced; (Al2O3+Al3Ti)P /Al; microstructure
中文摘要：通过对Al-TiO2-SiO2体系混合粉末固-液原位合成制备出了(Al2O3+Al3Ti)P /Al复合材料。利用X射线衍射仪、扫描电镜等方法观察分析了其物相和显微组织形貌。结果表明：原位反应制备的(Al2O3+Al3Ti)P /Al复合材料，金属间化合物增强相Al3Ti 均匀分布于基体，陶瓷相Al2O3颗粒非常细小，弥散分布于基体中，使材料的硬度等性能得到提高。
英文摘要：In-situ (Al2O3+Al3Ti) reinforced Al matrix composites were successfully fabricated using Al-TiO2-SiO2 solid-liquid system. The composites were inspected by X-ray diffraction, the microstructure of the composite was analyzed by scanning electron microscopy. The results indicate that, the in-situ Al2O3+Al3Ti particles reinforced Al matrix composite has dense microstructure. Al3Ti particulates with spherical shape combining closely with the matrix exhibit finer size and homogeneous distribution in the matrix; compared with Al matrix alloy, the hardness of(Al2O3+Al3Ti)P /Al composites obviously enhances.