Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Howard L. Heinisch"'
Autor:
Giridhar Nandipati, Wahyu Setyawan, Kenneth J. Roche, Brian D. Wirth, Richard J. Kurtz, Howard L. Heinisch
Publikováno v:
Journal of Nuclear Materials. 462:345-353
A study has been performed using object kinetic Monte Carlo (OKMC) simulations to investigate various aspects of cascade aging in bulk tungsten (W) and to determine its sensitivity to the kinetic parameters. The primary focus is on how the kinetic pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cc3f4ab1c7b75f0017ca0b1364bde90
Autor:
Kenneth J. Roche, Brian D. Wirth, Wahyu Setyawan, Howard L. Heinisch, Giridhar Nandipati, Richard J. Kurtz
Publikováno v:
Journal of Nuclear Materials. 462:329-337
Molecular dynamics simulations have been used to generate a comprehensive database of surviving defects due to displacement cascades in bulk tungsten. Twenty one data points of primary knock-on atom (PKA) energies ranging from 100 eV (sub-threshold e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5de2509c04b3895f7a38cda1191f7146
Autor:
Fei Gao, Wangyu Hu, Huiqiu Deng, Richard J. Kurtz, Yulan Li, Shenyang Y. Hu, Howard L. Heinisch
Publikováno v:
Journal of Nuclear Materials. 442:S667-S673
The diffusion properties of He interstitials and He clusters in the bulk and grain boundaries (GBs) of α-Fe have been studied using molecular dynamics with a newly developed Fe–He potential. The low migration energy barrier for a single He interst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbf5fde300ae988f9403b150fbc039e0
https://doi.org/10.1016/j.jnucmat.2013.02.063
https://doi.org/10.1016/j.jnucmat.2013.02.063
Autor:
Xiaotao Zu, Fei Gao, S.M. Peng, Zi Qiang Zhu, Xinggui Long, Li Yang, X. S. Zhou, Richard J. Kurtz, Howard L. Heinisch
Publikováno v:
Journal of Nuclear Materials. 441:6-14
The interaction of helium–vacancy (He–V) clusters with a gliding a /2 {1 1 0} edge dislocation in α-Fe is investigated by molecular dynamics methods under a constant strain rate at temperatures of 100–600 K. A number of small He n V m ( n / m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f1e16f10ca0eb3f1da06e0b5b130ad4
https://doi.org/10.1016/j.jnucmat.2013.05.002
https://doi.org/10.1016/j.jnucmat.2013.05.002
Autor:
Li Yang, Yulan Li, Huiqiu Deng, Xiaotao Zu, Fei Gao, Richard J. Kurtz, Howard L. Heinisch, Shenyang Y. Hu
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 303:68-71
Atomistic simulations of the nucleation of He clusters and bubbles in bcc iron at 800 K have been carried out using the newly developed Fe–Fe interatomic potential, along with Ackland potential for the Fe–Fe interactions. Microstructure changes w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02d7d3515df5667d698bab8c9a36a696
https://doi.org/10.1016/j.nimb.2012.11.025
https://doi.org/10.1016/j.nimb.2012.11.025
Publikováno v:
Journal of Nuclear Materials. 418:115-120
A new interatomic potential for Fe–He interactions has been developed by fitting to the results obtained from ab initio calculations. Based on the electronic hybridization between Fe d -electrons and He s -electrons, an s -band model, along with a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2c15a6f1d3d77ff7a7435ff464c2b5d
https://doi.org/10.1016/j.jnucmat.2011.06.008
https://doi.org/10.1016/j.jnucmat.2011.06.008
Autor:
Shilin Hu, Fei Gao, Shifang Xiao, Wangyu Hu, Jianyu Yang, Liang Wang, Howard L. Heinisch, Huiqiu Deng
Publikováno v:
Journal of Materials Research. 26:416-423
Molecular dynamic simulations of helium atoms escaping from a helium-filled nanobubble near the surface of crystalline palladium reveal unexpected behavior. Significant deformation and cracking near the helium bubble occur initially, and then a chann
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57cfd7f59aff6ad128703fdfa7e75057
https://doi.org/10.1557/jmr.2010.49
https://doi.org/10.1557/jmr.2010.49
Publikováno v:
Physica B: Condensed Matter. 405:1754-1758
The effects of He-vacancy (He-V) clusters on the mobility of an a/2〈1 1 1〉{1 1 0} edge dislocation in α-Fe are investigated by atomic simulation with empirical potentials at 0 K. A number of small HenVm (n/m 0–4) clusters initially placed at t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05e01052d4104c92812e92834fcd667a
https://doi.org/10.1016/j.physb.2010.01.034
https://doi.org/10.1016/j.physb.2010.01.034
Publikováno v:
Philosophical Magazine. 90:885-895
The interactions of He and vacancy defects with ⟨111⟩ screw dislocations in alpha-Fe were modeled using molecular statics, molecular dynamics and transition state energy determinations. The formati...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b599f3fd143734020e72da5d8740bc0e
https://doi.org/10.1080/14786430903294932
https://doi.org/10.1080/14786430903294932
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 267:3046-3049
The effects of different Fe–He interatomic potentials on primary damage formation in Fe-1%He are investigated using molecular dynamics (MD) methods. Simulations of cascades produced by primary knock-on atoms (PKA) of energy Ep = 0.5–10 keV were p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5ce6d03032ceb7c0724594e7d31ae2c
https://doi.org/10.1016/j.nimb.2009.06.048
https://doi.org/10.1016/j.nimb.2009.06.048