自1986年Rednote和Müller首次报导了ka—Ba—Cu—O系列材料的实验结果以来,高Tc材料的研制工作发展迅速。目前关于材料的超导性能、形貌、成分和稳定性是研究者关心的问题。我们用KYKY—1000B扫描电镜及TN—5500能谱附件研究了不同密度Y—Ba—Cu—O的形貌、成分、超导性能及稳定性。结果如下:一、烧结温度、时间对晶形生长、大小及排列有明显影响。高密 Since the first report of the ka-Ba-Cu-O series of materials by Rednote and Müller in 1986, the development of high-Tc materials has been rapidly developed. At present, the superconductivity, morphology, composition and stability of materials are the concerns of researchers. We studied the morphology, composition, superconductivity and stability of Y-Ba-Cu-O with different densities using KYKY-1000B SEM and TN-5500 EDS. The results are as follows: First, the sintering temperature, time on the crystal growth, size and arrangement have a significant impact. high density