Microstructure evolution of nonstoichiometric ZrC0.6 with ordered carbon vacancies under ion irradiation

Boxin Wei; Yujin Wang; Haibin Zhang; Dong Wang; Shuming Peng; Yu Zhou

doi:10.1016/j.matlet.2018.06.010

Microstructure evolution of nonstoichiometric ZrC_0.6 with ordered carbon vacancies under ion irradiation

Boxin Wei
, Yujin Wang^*
, Haibin Zhang
, Dong Wang
, Shuming Peng
, Yu Zhou

^*Corresponding author for this work

Harbin Institute of Technology
China Academy of Engineering Physics

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

16 Scopus citations

Abstract

ZrC_0.6 with ordered carbon vacancies was irradiated with a 4 MeV Au ion beam at room temperature at fluences of 2 × 10¹⁶ ions/cm², corresponding to 130 displacements per atom (dpa). Grazing incidence X-ray diffraction and transmission electron microscopy were performed to investigate the microstructure evolution of ZrC_0.6 under ion irradiation. The lattice parameter did not clearly increase (lattice expansion of 0.013%) for irradiated ZrC_0.6, which indicated that the inherent carbon vacancies acted as sinks for the interstitial atoms generated by irradiation. The peaks of Zr₂C-ordered phase in GIXRD patterns and reflections of ordered Zr₂C in microdiffraction patterns of the damaged layer disappeared, which indicated that superstructure modulation of the ordered carbon vacancies for Zr₂C was destroyed under Au ion irradiation, and demonstrated that introducing vacancy defects in ZrC enhanced the tolerance of radiation damage.

Original language	English
Pages (from-to)	254-257
Number of pages	4
Journal	Materials Letters
Volume	228
DOIs	https://doi.org/10.1016/j.matlet.2018.06.010
State	Published - 1 Oct 2018
Externally published	Yes

Keywords

Defects
Order vacancies
Radiation damage
Zirconium carbide

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10.1016/j.matlet.2018.06.010

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@article{8ad768f45aa84f80a4f48510d8e5e718,

title = "Microstructure evolution of nonstoichiometric ZrC0.6 with ordered carbon vacancies under ion irradiation",

abstract = "ZrC0.6 with ordered carbon vacancies was irradiated with a 4 MeV Au ion beam at room temperature at fluences of 2 × 1016 ions/cm2, corresponding to 130 displacements per atom (dpa). Grazing incidence X-ray diffraction and transmission electron microscopy were performed to investigate the microstructure evolution of ZrC0.6 under ion irradiation. The lattice parameter did not clearly increase (lattice expansion of 0.013\%) for irradiated ZrC0.6, which indicated that the inherent carbon vacancies acted as sinks for the interstitial atoms generated by irradiation. The peaks of Zr2C-ordered phase in GIXRD patterns and reflections of ordered Zr2C in microdiffraction patterns of the damaged layer disappeared, which indicated that superstructure modulation of the ordered carbon vacancies for Zr2C was destroyed under Au ion irradiation, and demonstrated that introducing vacancy defects in ZrC enhanced the tolerance of radiation damage.",

keywords = "Defects, Order vacancies, Radiation damage, Zirconium carbide",

author = "Boxin Wei and Yujin Wang and Haibin Zhang and Dong Wang and Shuming Peng and Yu Zhou",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = oct,

day = "1",

doi = "10.1016/j.matlet.2018.06.010",

language = "英语",

volume = "228",

pages = "254--257",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Microstructure evolution of nonstoichiometric ZrC0.6 with ordered carbon vacancies under ion irradiation

AU - Wei, Boxin

AU - Wang, Yujin

AU - Zhang, Haibin

AU - Wang, Dong

AU - Peng, Shuming

AU - Zhou, Yu

PY - 2018/10/1

Y1 - 2018/10/1

N2 - ZrC0.6 with ordered carbon vacancies was irradiated with a 4 MeV Au ion beam at room temperature at fluences of 2 × 1016 ions/cm2, corresponding to 130 displacements per atom (dpa). Grazing incidence X-ray diffraction and transmission electron microscopy were performed to investigate the microstructure evolution of ZrC0.6 under ion irradiation. The lattice parameter did not clearly increase (lattice expansion of 0.013%) for irradiated ZrC0.6, which indicated that the inherent carbon vacancies acted as sinks for the interstitial atoms generated by irradiation. The peaks of Zr2C-ordered phase in GIXRD patterns and reflections of ordered Zr2C in microdiffraction patterns of the damaged layer disappeared, which indicated that superstructure modulation of the ordered carbon vacancies for Zr2C was destroyed under Au ion irradiation, and demonstrated that introducing vacancy defects in ZrC enhanced the tolerance of radiation damage.

AB - ZrC0.6 with ordered carbon vacancies was irradiated with a 4 MeV Au ion beam at room temperature at fluences of 2 × 1016 ions/cm2, corresponding to 130 displacements per atom (dpa). Grazing incidence X-ray diffraction and transmission electron microscopy were performed to investigate the microstructure evolution of ZrC0.6 under ion irradiation. The lattice parameter did not clearly increase (lattice expansion of 0.013%) for irradiated ZrC0.6, which indicated that the inherent carbon vacancies acted as sinks for the interstitial atoms generated by irradiation. The peaks of Zr2C-ordered phase in GIXRD patterns and reflections of ordered Zr2C in microdiffraction patterns of the damaged layer disappeared, which indicated that superstructure modulation of the ordered carbon vacancies for Zr2C was destroyed under Au ion irradiation, and demonstrated that introducing vacancy defects in ZrC enhanced the tolerance of radiation damage.

KW - Defects

KW - Order vacancies

KW - Radiation damage

KW - Zirconium carbide

UR - https://www.scopus.com/pages/publications/85048332243

U2 - 10.1016/j.matlet.2018.06.010

DO - 10.1016/j.matlet.2018.06.010

M3 - 文章

AN - SCOPUS:85048332243

SN - 0167-577X

VL - 228

SP - 254

EP - 257

JO - Materials Letters

JF - Materials Letters

ER -

Microstructure evolution of nonstoichiometric ZrC_0.6 with ordered carbon vacancies under ion irradiation

Abstract

Keywords

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