The Surface Analysis of Melted Arc Copper Beads
Specific studies were carried out on the characteristic component from interior surfaces (IS) of cavities in metallic fire debris by Auger electron spectroscopy (AES), especially in order to distinguishing the primary and secondary electrical short circuit (ESC) arc beads. From the results of AES, we can see that the components from interior surfaces of cavities in the primary and secondary ESC are different, which help in probing the cause of the fire.
Young Won Chang, Nack J. Kim and Chong Soo Lee
Y. Wu et al., "The Surface Analysis of Melted Arc Copper Beads", Materials Science Forum, Vols. 561-565, pp. 2455-2458, 2007