First-Principles Study on Various Point Defects Formed by Hydrogen and Helium Atoms in Tungsten
Joint Authors
Zhao, Qiang
Zhang, Zheng
Li, Yang
Ouyang, Xiaoping
Source
Science and Technology of Nuclear Installations
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-09-07
Country of Publication
Egypt
No. of Pages
9
Abstract EN
The different point defects formed by two hydrogen atoms or two helium atoms in tungsten were investigated through first-principles calculation.
The energetically favorable site for a hydrogen atom is tetrahedral interstitial site while substitutional site is the most preferred site for a helium atom.
The formation energies of two hydrogen or helium atoms are determined by their positions, and they are not simply 2 times the formation energy of a single hydrogen or helium atom’s defect.
After relaxation, two adjacent hydrogen atoms are away from each other while helium atoms are close to each other.
The reasons for the interaction between two hydrogen or helium atoms are also discussed.
American Psychological Association (APA)
Zhao, Qiang& Zhang, Zheng& Li, Yang& Ouyang, Xiaoping. 2017. First-Principles Study on Various Point Defects Formed by Hydrogen and Helium Atoms in Tungsten. Science and Technology of Nuclear Installations،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1203766
Modern Language Association (MLA)
Zhao, Qiang…[et al.]. First-Principles Study on Various Point Defects Formed by Hydrogen and Helium Atoms in Tungsten. Science and Technology of Nuclear Installations No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1203766
American Medical Association (AMA)
Zhao, Qiang& Zhang, Zheng& Li, Yang& Ouyang, Xiaoping. First-Principles Study on Various Point Defects Formed by Hydrogen and Helium Atoms in Tungsten. Science and Technology of Nuclear Installations. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1203766
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1203766
