中文摘要：

用X射线衍射及氧含量分析法测定了Sm_1+xBa_2-xCu₃O_y固溶区域为0≤x≤0.4。当x【0.25时,Sm_1+xBa_2-xCu₃O_y属正交晶系;x=0.25时,发生从正交到四方的相变;在整个固溶区域内,T_c随x的增加而下降,直至淬灭。同时探讨了Sm_1+xBa_2-xCu₃O_y化合物在不同的淬火温度、氧含量与晶体结构、超导电性的关系。

英文摘要：

ByX-ray powder diffraction technique and oxygen content analysis, a solid solution Sm1+xBa2-xCu3Oy was determined with the solid solution region in 0≤x≤0.4. When x<0.25, the Sm1+xBa2-xCu3Oy presents orthorhombic symmetry, and the orthorhombic -tetragonal transition occurs at x=0. 25. With the increase of x, Tc decreases and finally breaks off. The correlation between oxygen content and phase structure at different quench temperature related to SmBa2Cu3Oy, was investigated as well.