中文摘要：

在单晶炉中成功生长出纵向长度为15．5mm，横向线度约为0．5mm的大尺寸Sm211晶须，表征了Sm211晶须的结构和成份．利用高温光学显微镜（HTOM）原位观察了Sm123在Sm211晶须上的外延生长并讨论了两者的关联．实验分析表明，在1100℃观察到的针状高温相可能是Sm422相；在1050℃的包晶温度，Sm123相在Sm211晶须上形成，显示出[001]sm211／／[100]sm123and[001]sm211／／[110]sm123两个外延关联．

英文摘要：

The whisker of Sm2BaCuOδ compound is successfully grown by single crystal technique with a length of 15.5 mm and a diameter of 0. ,5 ram. The structure and composition are analyzed by EDX technique. By high temperature optical microscope （ HTOM）, the in-situ epitaxial growth process is observed and both relationships have been studied. A needle-shaped high temperature phase is observed at 1 100 ＇C, which may be an Sm422 phase. At temperature 1 050 ℃, the Sm123 phase formed and show two epitaxial relations on the Sm211 whisker： [001]Sm211//[100]Sm123 and [001]Sm211//[110]Sm123.