考虑二元合金包晶反应和包晶转变过程，采用改进的cA方法建立了Ti-Al合金定向凝固过程中的组织演变数值计算模型，对液态金属冷却定向......

The microstructures and superconducting properties of melt textured(Y1-xGdx)BCO bulk samples were studied. It was found ......