Characterization of Weldments and Materials Using Thermoelectric Power Measurements
Thermoelectric power coefficient measurement techniques have been developed for numerous applications to guarantee material integrity by providing a non-destructive electronic property correlation to material microstructure, phase stability, specific solute additions, and lattice strain. How the electron concentration, the effective mass, and the dominating scattering mechanisms allow for non-destructive evaluation of materials will be described. Because thermoelectric power (TEP) is dependent upon numerous variables, additional non-destructive techniques are necessary to further characterize or classify the material or weldment. The concept of an electronic metallography laboratory is developed using additional collaborative NDE technologies.
Changhee Lee, Jong-Bong Lee, Dong-Hwan Park and Suck-Joo Na
Y. D. Park et al., "Characterization of Weldments and Materials Using Thermoelectric Power Measurements", Materials Science Forum, Vols. 580-582, pp. 117-120, 2008