PHASE RELATIONS AND PROPERTIES OF ALLOYS IN THE Yb-Sb SYSTEM

摘要

Differential thermal analysis ,x-ray diffraction,and microstructural analysis were used to map out the Yb-Sb phase diagram.The compounds β-Yb_5Sb_3,Yb_11Sb_10,YbSb,and YbSb_2 were found to form peritectically at 1813 ±15,1678±10,1348±10,and 1078± 5 K,respectively. Yb_4Sb_3 melts congruently at 1953±15K. One eutectic and two eutectic reactions were identified in the system. The composition dependences of magnetic susceptibility, electrical resistivity ,and thermoelectric power are consistent with the phase-diagram data.