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Special Issue:
SPECIAL TOPIC — Ion beam modification of materials and applications
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| SPECIAL TOPIC—Ion beam modification of materials and applications |
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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 |
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Abstract Zirconium tritiated (ZrTx) 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 ZrDx 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 ZrDx 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.
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Received: 15 June 2021
Revised: 15 September 2021
Accepted manuscript online: 24 September 2021
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PACS:
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61.80.-x
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(Physical radiation effects, radiation damage)
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85.40.Ry
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(Impurity doping, diffusion and ion implantation technology)
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61.82.Bg
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(Metals and alloys)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11905206 and 11975217). |
Corresponding Authors:
Tao Wang, Tieshan Wang
E-mail: wangtaoxtc@gmail.com;tswang@lzu.edu.cn
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Cite this article:
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 2021 Chin. Phys. B 30 106104
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