Displacive radiation-induced structural contraction in nanocrystalline ZrN

Fengyuan Lu; Mengbing Huang; Faisal Yaqoob; Maik Lang; Fereydoon Namavar; Christina Trautmann; Hongtao Sun; Rodney C. Ewing; Jie Lian

doi:10.1063/1.4738772

Displacive radiation-induced structural contraction in nanocrystalline ZrN

Fengyuan Lu, Mengbing Huang, Faisal Yaqoob, Maik Lang, Fereydoon Namavar, Christina Trautmann, Hongtao Sun, Rodney C. Ewing, Jie Lian

Orthopaedic Surgery & Rehabilitation

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

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.

Original language	English (US)
Article number	041904
Journal	Applied Physics Letters
Volume	101
Issue number	4
DOIs	https://doi.org/10.1063/1.4738772
State	Published - Jul 23 2012

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.4738772

Cite this

@article{b919f477754f44098576774df4e4f517,

title = "Displacive radiation-induced structural contraction in nanocrystalline ZrN",

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.",

author = "Fengyuan Lu and Mengbing Huang and Faisal Yaqoob and Maik Lang and Fereydoon Namavar and Christina Trautmann and Hongtao Sun and Ewing, {Rodney C.} and Jie Lian",

note = "Funding Information: This work was supported as part of the Materials Science of Actinides, an Energy Frontier Research Center, funded by the Office of Basic Energy Sciences under Award No. DE-SC0001089.",

year = "2012",

month = jul,

day = "23",

doi = "10.1063/1.4738772",

language = "English (US)",

volume = "101",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "4",

}

TY - JOUR

T1 - Displacive radiation-induced structural contraction in nanocrystalline ZrN

AU - Lu, Fengyuan

AU - Huang, Mengbing

AU - Yaqoob, Faisal

AU - Lang, Maik

AU - Namavar, Fereydoon

AU - Trautmann, Christina

AU - Sun, Hongtao

AU - Ewing, Rodney C.

AU - Lian, Jie

N1 - Funding Information: This work was supported as part of the Materials Science of Actinides, an Energy Frontier Research Center, funded by the Office of Basic Energy Sciences under Award No. DE-SC0001089.

PY - 2012/7/23

Y1 - 2012/7/23

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84864440325&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84864440325&partnerID=8YFLogxK

U2 - 10.1063/1.4738772

DO - 10.1063/1.4738772

M3 - Article

AN - SCOPUS:84864440325

SN - 0003-6951

VL - 101

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 4

M1 - 041904

ER -

Displacive radiation-induced structural contraction in nanocrystalline ZrN

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this