中文摘要：

以氧氯化锆（ZrOCl2·8H2O）为反应物,采用熔体反应法,并在反应过程中施加脉冲涡流磁场,磁化学合成了（Al2O3＋Al3Zr）p/Al复合材料.扫描电镜（SEM）与X射线衍射（XRD）分析表明：生成的颗粒为α-Al2O3和Al3Zr,颗粒细小,形状一致,且弥散分布于铝基体中;在相同反应条件下,与常规原位反应相比,磁场下反应更快、更完全,缩短了反应时间,并从反应动力学角度进行了分析.复合材料的力学性能研究表明,其屈服强度σs和抗拉强度σb均随颗粒体积分数的增加而升高,延伸率δ先升后降.（Al2O3＋Al3Zr）p/Al复合材料的拉伸断口形貌表明,其断裂属塑性断裂.

英文摘要：

（Al2O3＋Al3Zr）p/Al composites have been successfully fabricated by magnetochemical synthesis of ZrOCl2 and molten Al in a high pulsed magnetic field. It is found by SEM and XRD that the produced Al3Zr and α-Al2O3 particulates are fine and well-distributed in aluminum matrix. The magnetochemical reaction in Al melt is much faster and more complete than traditional in-situ reaction. The mechanism was analyzed by the reactive kinetics. It is found that the ultimate tensile strength and yield strength of （Al2O3＋Al3Zr）p/Al composites are improved with the increasing of the particulate volume fraction, whereas the elongation of these composites firstly goes up and then goes down. The fracture morphology indicates that the fracture of （Al2O3＋Al3Zr）p/Al composites belongs to plastic fracture.