Lu, Fengyuan ; Huang, Mengbing ; Yaqoob, Faisal ; Lang, Maik ; Namavar, Fereydoon ; Trautmann, Christina ; Sun, Hongtao ; Ewing, Rodney C. ; Lian, Jie (2012)
Displacive radiation-induced structural contraction in nanocrystalline ZrN.
In: Applied Physics Letters, 101 (4)
doi: 10.1063/1.4738772
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Nanocrystalline ZrN thin films with 5 nm grain size, prepared by ion beam assisted deposition, maintained their isometric structure upon intensive displacive and ionizing irradiations, indicating an extremely high stability similar to bulk ZrN. However, a unique structural contraction up to 1.42% in lattice parameter occurred only in nano-sized ZrN upon displacive irradiations. A significant nitrogen loss occurred with reduced N:Zr atomic ratio to 0.88, probably due to the production of displaced nitrogen atoms and fast diffusion along grain boundaries in nanocrystalline ZrN matrix. The accumulation of nitrogen vacancies and related strain relaxation may be responsible for the structural contraction.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2012 |
| Autor(en): | Lu, Fengyuan ; Huang, Mengbing ; Yaqoob, Faisal ; Lang, Maik ; Namavar, Fereydoon ; Trautmann, Christina ; Sun, Hongtao ; Ewing, Rodney C. ; Lian, Jie |
| Art des Eintrags: | Bibliographie |
| Titel: | Displacive radiation-induced structural contraction in nanocrystalline ZrN |
| Sprache: | Englisch |
| Publikationsjahr: | 24 Juli 2012 |
| Verlag: | AIP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Physics Letters |
| Jahrgang/Volume einer Zeitschrift: | 101 |
| (Heft-)Nummer: | 4 |
| DOI: | 10.1063/1.4738772 |
| Kurzbeschreibung (Abstract): | Nanocrystalline ZrN thin films with 5 nm grain size, prepared by ion beam assisted deposition, maintained their isometric structure upon intensive displacive and ionizing irradiations, indicating an extremely high stability similar to bulk ZrN. However, a unique structural contraction up to 1.42% in lattice parameter occurred only in nano-sized ZrN upon displacive irradiations. A significant nitrogen loss occurred with reduced N:Zr atomic ratio to 0.88, probably due to the production of displaced nitrogen atoms and fast diffusion along grain boundaries in nanocrystalline ZrN matrix. The accumulation of nitrogen vacancies and related strain relaxation may be responsible for the structural contraction. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Ionenstrahlmodifizierte Materialien |
| Hinterlegungsdatum: | 19 Mär 2024 07:12 |
| Letzte Änderung: | 19 Mär 2024 07:12 |
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