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

C. Sun; D. J. Sprouster; K. Hattar; L. E. Ecker; L. He; Y. Gao; Y. Zhang; J. Gan

doi:10.1016/j.scriptamat.2018.01.023

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

C. Sun
, D. J. Sprouster
, K. Hattar
, L. E. Ecker
, L. He
, Y. Gao
, Y. Zhang
, J. Gan

Materials Science and Engineering

Stony Brook University

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

17 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	26-30
Number of pages	5
Journal	Scripta Materialia
Volume	149
DOIs	https://doi.org/10.1016/j.scriptamat.2018.01.023
State	Published - May 2018

Keywords

Gas bubble superlattice
Helium ion implantation
Molybdenum
Synchrotron small-angle x-ray scattering
Transmission electron microscopy

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10.1016/j.scriptamat.2018.01.023

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title = "Formation of tetragonal gas bubble superlattice in bulk molybdenum under helium ion implantation",

abstract = "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 \textasciitilde{}4.5 nm, while it is \textasciitilde{}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.",

keywords = "Gas bubble superlattice, Helium ion implantation, Molybdenum, Synchrotron small-angle x-ray scattering, Transmission electron microscopy",

author = "C. Sun and Sprouster, \{D. J.\} and K. Hattar and Ecker, \{L. E.\} and L. He and Y. Gao and Y. Zhang and J. Gan",

note = "Publisher Copyright: {\textcopyright} 2018 Acta Materialia Inc.",

year = "2018",

month = may,

doi = "10.1016/j.scriptamat.2018.01.023",

language = "English",

volume = "149",

pages = "26--30",

journal = "Scripta Materialia",

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TY - JOUR

T1 - Formation of tetragonal gas bubble superlattice in bulk molybdenum under helium ion implantation

AU - Sun, C.

AU - Sprouster, D. J.

AU - Hattar, K.

AU - Ecker, L. E.

AU - He, L.

AU - Gao, Y.

AU - Zhang, Y.

AU - Gan, J.

PY - 2018/5

Y1 - 2018/5

N2 - 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.

AB - 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.

KW - Gas bubble superlattice

KW - Helium ion implantation

KW - Molybdenum

KW - Synchrotron small-angle x-ray scattering

KW - Transmission electron microscopy

UR - https://www.scopus.com/pages/publications/85041496742

U2 - 10.1016/j.scriptamat.2018.01.023

DO - 10.1016/j.scriptamat.2018.01.023

M3 - Article

SN - 1359-6462

VL - 149

SP - 26

EP - 30

JO - Scripta Materialia

JF - Scripta Materialia

ER -

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

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Keywords

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