Dissociation of thorium oxide on the surface of free surface tungsten

A. Böröczki, Gaál, S. Gurbán, M. Menyhárd, L. Petrás, L. Balázs

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationInstitute of Physics Conference Series
EditorsG. Zissis
Pages591-592
Number of pages2
Volume182
Publication statusPublished - 2004
EventLight Sources 2004 - Proceedings of the Tenth International Symposium on the Science an Technology of Light Sources - Toulouse, France
Duration: Jul 18 2004Jul 22 2004

Other

OtherLight Sources 2004 - Proceedings of the Tenth International Symposium on the Science an Technology of Light Sources
CountryFrance
CityToulouse
Period7/18/047/22/04

Fingerprint

thorium oxides
tungsten
dissociation
thorium
Auger spectroscopy
electron spectroscopy
binding energy
enthalpy
kinetics
oxygen

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Böröczki, A., Gaál, Gurbán, S., Menyhárd, M., Petrás, L., & Balázs, L. (2004). Dissociation of thorium oxide on the surface of free surface tungsten. In G. Zissis (Ed.), Institute of Physics Conference Series (Vol. 182, pp. 591-592)

Dissociation of thorium oxide on the surface of free surface tungsten. / Böröczki, A.; Gaál; Gurbán, S.; Menyhárd, M.; Petrás, L.; Balázs, L.

Institute of Physics Conference Series. ed. / G. Zissis. Vol. 182 2004. p. 591-592.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Böröczki, A, Gaál, Gurbán, S, Menyhárd, M, Petrás, L & Balázs, L 2004, Dissociation of thorium oxide on the surface of free surface tungsten. in G Zissis (ed.), Institute of Physics Conference Series. vol. 182, pp. 591-592, Light Sources 2004 - Proceedings of the Tenth International Symposium on the Science an Technology of Light Sources, Toulouse, France, 7/18/04.
Böröczki A, Gaál, Gurbán S, Menyhárd M, Petrás L, Balázs L. Dissociation of thorium oxide on the surface of free surface tungsten. In Zissis G, editor, Institute of Physics Conference Series. Vol. 182. 2004. p. 591-592
Böröczki, A. ; Gaál ; Gurbán, S. ; Menyhárd, M. ; Petrás, L. ; Balázs, L. / Dissociation of thorium oxide on the surface of free surface tungsten. Institute of Physics Conference Series. editor / G. Zissis. Vol. 182 2004. pp. 591-592
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