Evolution of vacancy-type defects in multi-component carbide ceramics under helium ion irradiation at room temperature

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成果类型：

期刊论文

作者：

Xie, Xiangmin;Yang, Qigui;Tang, Xian;Xu, Meicheng;Zhang, Peng;...

通讯作者：

Cao, XZ;Tang, X

作者机构：

[Zhang, Peng; Zhu, Te; Yang, Qigui; Cao, Xingzhong; Xie, Xiangmin; Cao, XZ; Xu, Meicheng] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.

[Tang, Xian; Xie, Xiangmin; Xu, Meicheng] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.

[Tang, Xian; Xie, Xiangmin] Minist Educ, Key Lab Adv Nucl Energy Design & Safety, Hengyang 421001, Peoples R China.

[Zhu, Te; Yang, Qigui; Cao, Xingzhong] Henan Acad Sci, Ctr High Energy Phys, Zhengzhou 450046, Peoples R China.

[Yang, Xin] Cent South Univ, Natl Key Lab Sci & Technol High Strength Struct Ma, Changsha 410083, Peoples R China.

通讯机构：

[Tang, X ] U

[Cao, XZ ] C

Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.

Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.

语种：

英文

关键词：

Multi-component carbide;He-ion irradiation;Vacancy-type defects;Positron annihilation spectroscopy;First-principles calculations

期刊：

Journal of the European Ceramic Society

ISSN：

0955-2219

年：

2025

卷：

期：

页码：

117430

DOI：

10.1016/j.jeurceramsoc.2025.117430

基金类别：

CRediT authorship contribution statement Xiangmin Xie: Writing – original draft, Methodology, Investigation, acquisition, Formal analysis, Conceptualization. Qigui Yang: Writing – review & editing, Methodology, Investigation. Xian Tang: Writing – review & editing, Supervision. Meicheng Xu: Data curation. Peng Zhang: Data curation. Te Zhu: Writing – review & editing. Xin Yang: Resources. Xingzhong Cao: Writing – review & editing, Supervision, Project administration, acquisition.

机构署名：

本校为通讯机构

院系归属：

核科学技术学院

摘要：

Multi-component carbide (MCC) ceramics are promising structural materials in advanced nuclear reactors. However, their behavior upon irradiation, particularly the interaction between vacancy defects and helium atoms, remains inadequately understood. In this study, two MCC ceramics, (NbTaZr)C 3 and (NbTaTiZr)C 4 were irradiated with 50-keV He-ion at room temperature. The microstructures were characterized using transmission electron microscopy, and the vacancy-type defects were investigated using positron annihilation spectroscopy and first-prin...

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Evolution of vacancy-type defects in multi-component carbide ceramics under helium ion irradiation at room temperature

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