International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2569

Full Length Research Paper

Thermo-electrical characterization of Lead-Cadmium (Pb-Cd) alloys

Fatma Meydaneri1*, Buket Saatçi2 and Mehmet Ari2
1Department of Metallurgy and Materials Engineering, Faculty of Engineering, Karabük University, 78050, Karabük, Turkey. 2Department of Physics, Faculty of Arts and Sciences, Erciyes University, 38039, Kayseri, Turkey.
Email: [email protected]

  •  Accepted: 22 November 2012
  •  Published: 01 October 2013


Thermal conductivities of solid phases for pure Lead (Pb) and Pb-x wt.% Cadmium (Cd) (x = 3.3, 5, 12, 17.4, 50, 95, 99.75) binary alloys were measured with a radial heat flow apparatus. The variations of electrical conductivity (σ) on temperature and composition for the Pb-Cd alloys were measured with DC four-point probe technique. It has been observed that the electrical conductivity of Cd-based Pb-Cd alloys increases with increasing temperature, whereas the conductivity of the Pb-Cd alloys decreases with increasing Cd component. The temperature coefficient of the electrical resistivity and the temperature coefficient of the thermal conductivity for the Pb-Cd alloys have been determined. Also, the dependency of the Lorenz number (L) on temperature and Cd component for the Pb-Cd alloys was also investigated based on the Wiedemann-Franz law by using the measured values of the thermal () and electrical (σ) conductivity for the alloys.


Key words: Thermal conductivity, electrical conductivity, radial heat flow, X-Ray powder diffraction, Lorenz number, Pb-Cd alloys.