Hydrogen isotopic replacement and microstructure evolution in zirconium deuteride implanted by 150 keV protons

doi:10.1088/1674-1056/ac29a7

中国物理B ›› 2021, Vol. 30 ›› Issue (10): 106104-106104.doi: 10.1088/1674-1056/ac29a7

所属专题： SPECIAL TOPIC — Ion beam modification of materials and applications

Hydrogen isotopic replacement and microstructure evolution in zirconium deuteride implanted by 150 keV protons

Man Zhao(赵嫚)¹, Mingxu Zhang(张明旭)¹, Tao Wang(王韬)^2,†, Jiangtao Zhao(赵江涛)¹, Pan Dong(董攀)², Zhen Yang(杨振)³, and Tieshan Wang(王铁山)^1,‡

1 School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China;
2 Institute of Fluid Physics, CAEP, Mianyang 621900, China;
3 Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China

收稿日期:2021-06-15 修回日期:2021-09-15 接受日期:2021-09-24 发布日期:2021-10-09
通讯作者: Tao Wang, Tieshan Wang E-mail:wangtaoxtc@gmail.com;tswang@lzu.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11905206 and 11975217).

Hydrogen isotopic replacement and microstructure evolution in zirconium deuteride implanted by 150 keV protons

Man Zhao(赵嫚)¹, Mingxu Zhang(张明旭)¹, Tao Wang(王韬)^2,†, Jiangtao Zhao(赵江涛)¹, Pan Dong(董攀)², Zhen Yang(杨振)³, and Tieshan Wang(王铁山)^1,‡

1 School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China;
2 Institute of Fluid Physics, CAEP, Mianyang 621900, China;
3 Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China

Received:2021-06-15 Revised:2021-09-15 Accepted:2021-09-24 Published:2021-10-09
Contact: Tao Wang, Tieshan Wang E-mail:wangtaoxtc@gmail.com;tswang@lzu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11905206 and 11975217).

摘要/Abstract

摘要： Zirconium tritiated (ZrT_x) is an alternative target material for deuteron-triton (D-T) reaction neutron generator. The isotopic replacement and microstructure evolution induced by hydrogen isotope implantation could significantly affect the performance of the target film. In this work, the zirconium deuteride film deposited on Mo/Si substrate was implanted by 150 keV protons with fluence from 1×10¹⁶ to 1×10¹⁸ protons/cm². After implantation, the depth profiles of retained hydrogen (H) and deuterium (D) in these target films were analyzed by elastic recoil detection analysis (ERDA), and time of flight-secondary ion mass spectrometry (ToF-SIMS). Additionally, the microstructure evolution was also observed by x-ray diffraction (XRD) and scanning electron microscope (SEM). The D concentration in the ZrD_x film decreased versus the proton implantation fluence. An analytical model was proposed to describe the hydrogen isotopic trapping and exchange as functions of incident protons fluence. Additionally, the XRD analysis revealed that no new phase was formed after proton implantation. Furthermore, circular flakings were observed on the ZrD_x surface from SEM images at fluence up to 1×10¹⁸ protons/cm², and this surface morphology was considered to associate with the hydrogen atoms congregation in Mo/Si boundary.

关键词: zirconium deuterides, isotopic replacement, proton implantation, microstructure evolution

Abstract: Zirconium tritiated (ZrT_x) is an alternative target material for deuteron-triton (D-T) reaction neutron generator. The isotopic replacement and microstructure evolution induced by hydrogen isotope implantation could significantly affect the performance of the target film. In this work, the zirconium deuteride film deposited on Mo/Si substrate was implanted by 150 keV protons with fluence from 1×10¹⁶ to 1×10¹⁸ protons/cm². After implantation, the depth profiles of retained hydrogen (H) and deuterium (D) in these target films were analyzed by elastic recoil detection analysis (ERDA), and time of flight-secondary ion mass spectrometry (ToF-SIMS). Additionally, the microstructure evolution was also observed by x-ray diffraction (XRD) and scanning electron microscope (SEM). The D concentration in the ZrD_x film decreased versus the proton implantation fluence. An analytical model was proposed to describe the hydrogen isotopic trapping and exchange as functions of incident protons fluence. Additionally, the XRD analysis revealed that no new phase was formed after proton implantation. Furthermore, circular flakings were observed on the ZrD_x surface from SEM images at fluence up to 1×10¹⁸ protons/cm², and this surface morphology was considered to associate with the hydrogen atoms congregation in Mo/Si boundary.

Key words: zirconium deuterides, isotopic replacement, proton implantation, microstructure evolution

中图分类号: (Physical radiation effects, radiation damage)

61.80.-x

85.40.Ry (Impurity doping, diffusion and ion implantation technology) 61.82.Bg (Metals and alloys)

Man Zhao(赵嫚), Mingxu Zhang(张明旭), Tao Wang(王韬), Jiangtao Zhao(赵江涛), Pan Dong(董攀), Zhen Yang(杨振), and Tieshan Wang(王铁山). Hydrogen isotopic replacement and microstructure evolution in zirconium deuteride implanted by 150 keV protons[J]. 中国物理B, 2021, 30(10): 106104-106104.

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Hydrogen isotopic replacement and microstructure evolution in zirconium deuteride implanted by 150 keV protons

Hydrogen isotopic replacement and microstructure evolution in zirconium deuteride implanted by 150 keV protons

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