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Title: Formation of tetragonal gas bubble superlattice in bulk molybdenum under helium ion implantation

Abstract

In this paper, we report the formation of tetragonal gas bubble superlattice in bulk molybdenum under helium ion implantation at 573 K. The transmission electron microscopy study shows that the helium bubble lattice constant measured from the in-plane d-spacing is ~4.5 nm, while it is ~3.9 nm from the out-of-plane measurement. The results of synchrotron-based small-angle x-ray scattering agree well with the transmission electron microscopy results in terms of the measurement of bubble lattice constant and bubble size. The coupling of transmission electron microscopy and synchrotron high-energy X-ray scattering provides an effective approach to study defect superlattices in irradiated materials.

Authors:
 [1];  [2];  [3];  [2];  [1];  [1];  [1];  [1]
  1. Idaho National Lab. (INL), Idaho Falls, ID (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1426471
Alternate Identifier(s):
OSTI ID: 1496414
Report Number(s):
BNL-203340-2018-JAAM
Journal ID: ISSN 1359-6462; TRN: US1802292
Grant/Contract Number:  
SC0012704; AC07-05ID14517; AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
Scripta Materialia
Additional Journal Information:
Journal Volume: 149; Journal Issue: C; Journal ID: ISSN 1359-6462
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 36 MATERIALS SCIENCE; Gas bubble superlattice; Helium ion implantation; Molybdenum; Transmission electron microscopy; Synchrotron small-angle x-ray scattering

Citation Formats

Sun, Cheng, Sprouster, David J., Hattar, K., Ecker, L. E., He, L., Gao, Y., Zhang, Y., and Gan, J. Formation of tetragonal gas bubble superlattice in bulk molybdenum under helium ion implantation. United States: N. p., 2018. Web. doi:10.1016/j.scriptamat.2018.01.023.
Sun, Cheng, Sprouster, David J., Hattar, K., Ecker, L. E., He, L., Gao, Y., Zhang, Y., & Gan, J. Formation of tetragonal gas bubble superlattice in bulk molybdenum under helium ion implantation. United States. doi:10.1016/j.scriptamat.2018.01.023.
Sun, Cheng, Sprouster, David J., Hattar, K., Ecker, L. E., He, L., Gao, Y., Zhang, Y., and Gan, J. Fri . "Formation of tetragonal gas bubble superlattice in bulk molybdenum under helium ion implantation". United States. doi:10.1016/j.scriptamat.2018.01.023. https://www.osti.gov/servlets/purl/1426471.
@article{osti_1426471,
title = {Formation of tetragonal gas bubble superlattice in bulk molybdenum under helium ion implantation},
author = {Sun, Cheng and Sprouster, David J. and Hattar, K. and Ecker, L. E. and He, L. and Gao, Y. and Zhang, Y. and Gan, J.},
abstractNote = {In this paper, we report the formation of tetragonal gas bubble superlattice in bulk molybdenum under helium ion implantation at 573 K. The transmission electron microscopy study shows that the helium bubble lattice constant measured from the in-plane d-spacing is ~4.5 nm, while it is ~3.9 nm from the out-of-plane measurement. The results of synchrotron-based small-angle x-ray scattering agree well with the transmission electron microscopy results in terms of the measurement of bubble lattice constant and bubble size. The coupling of transmission electron microscopy and synchrotron high-energy X-ray scattering provides an effective approach to study defect superlattices in irradiated materials.},
doi = {10.1016/j.scriptamat.2018.01.023},
journal = {Scripta Materialia},
number = C,
volume = 149,
place = {United States},
year = {2018},
month = {2}
}

Journal Article:
Free Publicly Available Full Text
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Figures / Tables:

Figure 1 Figure 1: Bulk Mo after He implantation at energy of 150 keV to a fluence of 1.2×1017/cm2 at 573K. (a) SRIM simulated He concentration profile as a function of ion penetration depth. The superimposed cross-sectional TEM micrograph under under-focusing imaging condition shows the helium bubbles in the peak damage region.more » (b) Helium bubble density distribution vs. ion penetration depth. The peak helium bubble density occurs at depth of 330-450 nm.« less

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Works referencing / citing this record:

Symmetry breaking during defect self-organization under irradiation
journal, May 2020


    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.