Amorphization of nanocrystalline monoclinic ZrO2 by swift heavy ion irradiation

Fengyuan Lu, Jianwei Wang, Maik Lang, Marcel Toulemonde, Fereydoon Namavar, Christina Trautmann, Jiaming Zhang, Rodney C. Ewing, Jie Lian

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Bulk ZrO2 polymorphs generally have an extremely high amorphization tolerance upon low energy ion and swift heavy ion irradiation in which ballistic interaction and ionization radiation dominate the ion-solid interaction, respectively. However, under very high-energy irradiation by 1.33 GeV U-238, nanocrystalline (40-50 nm) monoclinic ZrO2 can be amorphized. A computational simulation based on a thermal spike model reveals that the strong ionizing radiation from swift heavy ions with a very high electronic energy loss of 52.2 keV nm-1 can induce transient zones with temperatures well above the ZrO2 melting point. The extreme electronic energy loss, coupled with the high energy state of the nanostructured materials and a high thermal confinement due to the less effective heat transport within the transient hot zone, may eventually be responsible for the ionizing radiation-induced amorphization without transforming to the tetragonal polymorph. The amorphization of nanocrystalline zirconia was also confirmed by 1.69 GeV Au ion irradiation with the electronic energy loss of 40 keV nm -1. These results suggest that highly radiation tolerant materials in bulk forms, such as ZrO2, may be radiation sensitive with the reduced length scale down to the nano-metered regime upon irradiation above a threshold value of electronic energy loss.

Original languageEnglish (US)
Pages (from-to)12295-12300
Number of pages6
JournalPhysical Chemistry Chemical Physics
Volume14
Issue number35
DOIs
StatePublished - Sep 21 2012

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Heavy Ions
Amorphization
Ion bombardment
ion irradiation
Energy dissipation
Ionizing radiation
heavy ions
energy dissipation
Polymorphism
electronics
ionizing radiation
radiation
Irradiation
Ions
Radiation
irradiation
Ballistics
Nanostructured materials
spikes
zirconium oxides

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Lu, F., Wang, J., Lang, M., Toulemonde, M., Namavar, F., Trautmann, C., ... Lian, J. (2012). Amorphization of nanocrystalline monoclinic ZrO2 by swift heavy ion irradiation. Physical Chemistry Chemical Physics, 14(35), 12295-12300. https://doi.org/10.1039/c2cp41553d

Amorphization of nanocrystalline monoclinic ZrO2 by swift heavy ion irradiation. / Lu, Fengyuan; Wang, Jianwei; Lang, Maik; Toulemonde, Marcel; Namavar, Fereydoon; Trautmann, Christina; Zhang, Jiaming; Ewing, Rodney C.; Lian, Jie.

In: Physical Chemistry Chemical Physics, Vol. 14, No. 35, 21.09.2012, p. 12295-12300.

Research output: Contribution to journalArticle

Lu, F, Wang, J, Lang, M, Toulemonde, M, Namavar, F, Trautmann, C, Zhang, J, Ewing, RC & Lian, J 2012, 'Amorphization of nanocrystalline monoclinic ZrO2 by swift heavy ion irradiation', Physical Chemistry Chemical Physics, vol. 14, no. 35, pp. 12295-12300. https://doi.org/10.1039/c2cp41553d
Lu F, Wang J, Lang M, Toulemonde M, Namavar F, Trautmann C et al. Amorphization of nanocrystalline monoclinic ZrO2 by swift heavy ion irradiation. Physical Chemistry Chemical Physics. 2012 Sep 21;14(35):12295-12300. https://doi.org/10.1039/c2cp41553d
Lu, Fengyuan ; Wang, Jianwei ; Lang, Maik ; Toulemonde, Marcel ; Namavar, Fereydoon ; Trautmann, Christina ; Zhang, Jiaming ; Ewing, Rodney C. ; Lian, Jie. / Amorphization of nanocrystalline monoclinic ZrO2 by swift heavy ion irradiation. In: Physical Chemistry Chemical Physics. 2012 ; Vol. 14, No. 35. pp. 12295-12300.
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