Dissociation kinetics of thorium oxide (ThO2) on the surface of free surface tungsten was analyzed using numerical model and Auger electron spectroscopy (AES). It was found that enthalpy of the system decreased upon dissociation of the ThO2 on the free surface due to high binding energy of the oxygen to the free W surface. It was observed that the dissociation rate of thorium oxide was neither governed by diffusion nor y a usual thermally activated process. The results show that the evolution rate of thorium surface segregation is much faster at 0.11 μA/cm2.
|Number of pages||2|
|Journal||Institute of Physics Conference Series|
|Publication status||Published - Oct 19 2004|
|Event||Light Sources 2004 - Proceedings of the Tenth International Symposium on the Science an Technology of Light Sources - Toulouse, France|
Duration: Jul 18 2004 → Jul 22 2004
ASJC Scopus subject areas
- Physics and Astronomy(all)