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7173237 
Journal Article 
Abnormal resistivity and viscosity behavior in Sb-rich Pb-Sb melts 
Guo Feng-xiang; Wang Wei; Yang Hai-long; Qin Jing-yu; Tian Xue-lei; , 
2012 
1 
Transactions of Nonferrous Metals Society of China
ISSN: 1003-6326 
ELSEVIER SCIENCE BV 
AMSTERDAM 
3113-3119 
WOS:000317417800037 
Electrical resistivity and viscosity of Pb-Sb alloys are measured to investigate Peierls distortion behavior in the melts. In Pb30Sb70, Pb20Sb80, and Pb10Sb90 melts, temperature dependence of resistivity deviates from linear dependence during cooling. At 663 degrees C, different trends in isothermal behavior between experimental and theoretical resistivities, are interpreted as the existence of Peierls distortion in Sb-rich melts. In Pb30Sb70 and Pb20Sb80 melts, abnormal viscosity results verify the existence of abnormal structure transition, which is attributed to the formation of large Sb clusters with Peierls distortion. In undercooled liquid Pb20Sb80, minute resistivity coefficient and quadratic resistivity behavior are interpreted as the rapid increase of cluster size of Sb clusters with Peierls distortion, which provides preferential nucleation sites for higher structure similarity to the crystalline and lower liquid-solid interfacial energy.