On Triboemission from the Sliding Contact of Si and Ge
The Ann. of U. "Dunarea De Jos", Romania, Fasc.VIII (Tribology)
Experimental research work is presented seeking a better understanding of triboemission of negatively-charged particles from sliding contacts. Previous research by the authors found significant emission of electrons from diamond-on-alumina, diamond-on-sapphire and alumina-on-alumina during sliding contact and after contact ceased, while no emission was detected from diamond-on-aluminum systems. This study explores negative-charge intensity from the semiconductors silicon and germanium when they are scratched by a diamond pin in high vacuum. While significant triboemission was always detected during the sliding contact, emission was undetectable when contact ended. Emission intensity is substantially higher for diamond-on-Si than for diamond-on-Ge. Decreasing emission is observed when the same wear track is scratched in repeated passes. These results are discussed with a focus on surface mechanisms that have been postulated to explain triboemission.
Molina, Gustavo J., D. A. Mazilu, M. J. Furey, C. Kajdas.
"On Triboemission from the Sliding Contact of Si and Ge."
The Ann. of U. "Dunarea De Jos", Romania, Fasc.VIII (Tribology): 22-29 Romania.