在Ag基材(厚0.1mm带,直径0.1mm线)上非平衡凝固熔敷微米厚度超导膜,用激光区熔定向凝固晶体生长方法制备出致密,有明显结构取向的Bi系复合超导带(线)材。系统研究了成分配比(1112,2212,2223,+Pb),激光区熔晶体生长参数(功率密度、生长速度),后续热处理制度(温度、时间、气氛)对复合超导材料的显微特征(相结构、组成、 In the Ag substrate (0.1mm thick, 0.1mm diameter wire) on the non-equilibrium coagulation deposited micron thickness superconducting film, with the laser melting directional solidification crystal growth method was prepared dense, obvious structural orientation of the Bi-based composite superconducting With (line) material. The effects of composition ratio (1112,2212,2223, + Pb), laser crystal growth parameters (power density and growth rate) and subsequent heat treatment (temperature, time and atmosphere) on the microstructures of the composite superconducting materials (Phase structure, composition,