He atoms diffusion and aggregation in Li

Advanced reactor projects will consider the utilization of Li2TiO3 as a potential material for neutron moderation and certain radiation shielding applications in fission reactors, as well as for tritium breeder blanket material in fusion reactors. He is one of the particles produced by the reaction...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Zhou, Liangfu [verfasserIn] He, Li [verfasserIn] Yang, Dongyan [verfasserIn] Li, Yuhong [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Li Helium Diffusion and aggregation behavior Molecular dynamics simulation

Übergeordnetes Werk:	Enthalten in: Nuclear engineering and design - Amsterdam [u.a.] : Elsevier Science, 1966, 413
Übergeordnetes Werk:	volume:413

DOI / URN:	10.1016/j.nucengdes.2023.112567

Katalog-ID:	ELV064879496

Internformat


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520			\|a Advanced reactor projects will consider the utilization of Li2TiO3 as a potential material for neutron moderation and certain radiation shielding applications in fission reactors, as well as for tritium breeder blanket material in fusion reactors. He is one of the particles produced by the reaction of Li with neutrons during the service of Li2TiO3. The diffusion and aggregation of He in Li2TiO3 can cause embrittlement failure of Li2TiO3. Understanding the diffusion and aggregation behavior of helium in Li2TiO3 is crucial for evaluating service life, as well as for the selection and design of advanced nuclear reactor components. In this paper, the diffusion of He in Li2TiO3 and the nucleation behavior of a He cluster were studied by molecular dynamics simulations. The following results were mainly obtained: (1) The long-range diffusion activation energy of He atoms in Li2TiO3 is about 0.5 eV, and it varies significantly with the change of Li vacancy content. (2) He atoms tend to be distributed in the Li layers after sufficient diffusion in Li2TiO3, so the best nucleation site for He clusters in Li2TiO3 may be located in the Li layers. (3) After a He cluster reaches a certain size, it can trigger defects by extruding an O-LiTi2-O layer in its immediate vicinity on one side and migrating with the extruded O-LiTi2-O layer. (4) A He cluster can promote their own growth by releasing pressure.
650		4	\|a Li
650		4	\|a Helium
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700	1		\|a Yang, Dongyan \|e verfasserin \|4 aut
700	1		\|a Li, Yuhong \|e verfasserin \|4 aut
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Indexfelder

author_variant	l z lz l h lh d y dy y l yl
matchkey_str	article:00295493:2023----::etmdfuinnage
hierarchy_sort_str	2023
bklnumber	52.55
publishDate	2023
allfields	10.1016/j.nucengdes.2023.112567 doi (DE-627)ELV064879496 (ELSEVIER)S0029-5493(23)00416-8 DE-627 ger DE-627 rda eng 620 VZ 52.55 bkl Zhou, Liangfu verfasserin aut He atoms diffusion and aggregation in Li 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Advanced reactor projects will consider the utilization of Li2TiO3 as a potential material for neutron moderation and certain radiation shielding applications in fission reactors, as well as for tritium breeder blanket material in fusion reactors. He is one of the particles produced by the reaction of Li with neutrons during the service of Li2TiO3. The diffusion and aggregation of He in Li2TiO3 can cause embrittlement failure of Li2TiO3. Understanding the diffusion and aggregation behavior of helium in Li2TiO3 is crucial for evaluating service life, as well as for the selection and design of advanced nuclear reactor components. In this paper, the diffusion of He in Li2TiO3 and the nucleation behavior of a He cluster were studied by molecular dynamics simulations. The following results were mainly obtained: (1) The long-range diffusion activation energy of He atoms in Li2TiO3 is about 0.5 eV, and it varies significantly with the change of Li vacancy content. (2) He atoms tend to be distributed in the Li layers after sufficient diffusion in Li2TiO3, so the best nucleation site for He clusters in Li2TiO3 may be located in the Li layers. (3) After a He cluster reaches a certain size, it can trigger defects by extruding an O-LiTi2-O layer in its immediate vicinity on one side and migrating with the extruded O-LiTi2-O layer. (4) A He cluster can promote their own growth by releasing pressure. Li Helium Diffusion and aggregation behavior Molecular dynamics simulation He, Li verfasserin aut Yang, Dongyan verfasserin aut Li, Yuhong verfasserin aut Enthalten in Nuclear engineering and design Amsterdam [u.a.] : Elsevier Science, 1966 413 Online-Ressource (DE-627)320411087 (DE-600)2001319-X (DE-576)251938182 0029-5493 nnns volume:413 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 52.55 Kerntechnik Reaktortechnik VZ AR 413
spelling	10.1016/j.nucengdes.2023.112567 doi (DE-627)ELV064879496 (ELSEVIER)S0029-5493(23)00416-8 DE-627 ger DE-627 rda eng 620 VZ 52.55 bkl Zhou, Liangfu verfasserin aut He atoms diffusion and aggregation in Li 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Advanced reactor projects will consider the utilization of Li2TiO3 as a potential material for neutron moderation and certain radiation shielding applications in fission reactors, as well as for tritium breeder blanket material in fusion reactors. He is one of the particles produced by the reaction of Li with neutrons during the service of Li2TiO3. The diffusion and aggregation of He in Li2TiO3 can cause embrittlement failure of Li2TiO3. Understanding the diffusion and aggregation behavior of helium in Li2TiO3 is crucial for evaluating service life, as well as for the selection and design of advanced nuclear reactor components. In this paper, the diffusion of He in Li2TiO3 and the nucleation behavior of a He cluster were studied by molecular dynamics simulations. The following results were mainly obtained: (1) The long-range diffusion activation energy of He atoms in Li2TiO3 is about 0.5 eV, and it varies significantly with the change of Li vacancy content. (2) He atoms tend to be distributed in the Li layers after sufficient diffusion in Li2TiO3, so the best nucleation site for He clusters in Li2TiO3 may be located in the Li layers. (3) After a He cluster reaches a certain size, it can trigger defects by extruding an O-LiTi2-O layer in its immediate vicinity on one side and migrating with the extruded O-LiTi2-O layer. (4) A He cluster can promote their own growth by releasing pressure. Li Helium Diffusion and aggregation behavior Molecular dynamics simulation He, Li verfasserin aut Yang, Dongyan verfasserin aut Li, Yuhong verfasserin aut Enthalten in Nuclear engineering and design Amsterdam [u.a.] : Elsevier Science, 1966 413 Online-Ressource (DE-627)320411087 (DE-600)2001319-X (DE-576)251938182 0029-5493 nnns volume:413 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 52.55 Kerntechnik Reaktortechnik VZ AR 413
allfields_unstemmed	10.1016/j.nucengdes.2023.112567 doi (DE-627)ELV064879496 (ELSEVIER)S0029-5493(23)00416-8 DE-627 ger DE-627 rda eng 620 VZ 52.55 bkl Zhou, Liangfu verfasserin aut He atoms diffusion and aggregation in Li 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Advanced reactor projects will consider the utilization of Li2TiO3 as a potential material for neutron moderation and certain radiation shielding applications in fission reactors, as well as for tritium breeder blanket material in fusion reactors. He is one of the particles produced by the reaction of Li with neutrons during the service of Li2TiO3. The diffusion and aggregation of He in Li2TiO3 can cause embrittlement failure of Li2TiO3. Understanding the diffusion and aggregation behavior of helium in Li2TiO3 is crucial for evaluating service life, as well as for the selection and design of advanced nuclear reactor components. In this paper, the diffusion of He in Li2TiO3 and the nucleation behavior of a He cluster were studied by molecular dynamics simulations. The following results were mainly obtained: (1) The long-range diffusion activation energy of He atoms in Li2TiO3 is about 0.5 eV, and it varies significantly with the change of Li vacancy content. (2) He atoms tend to be distributed in the Li layers after sufficient diffusion in Li2TiO3, so the best nucleation site for He clusters in Li2TiO3 may be located in the Li layers. (3) After a He cluster reaches a certain size, it can trigger defects by extruding an O-LiTi2-O layer in its immediate vicinity on one side and migrating with the extruded O-LiTi2-O layer. (4) A He cluster can promote their own growth by releasing pressure. Li Helium Diffusion and aggregation behavior Molecular dynamics simulation He, Li verfasserin aut Yang, Dongyan verfasserin aut Li, Yuhong verfasserin aut Enthalten in Nuclear engineering and design Amsterdam [u.a.] : Elsevier Science, 1966 413 Online-Ressource (DE-627)320411087 (DE-600)2001319-X (DE-576)251938182 0029-5493 nnns volume:413 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 52.55 Kerntechnik Reaktortechnik VZ AR 413
allfieldsGer	10.1016/j.nucengdes.2023.112567 doi (DE-627)ELV064879496 (ELSEVIER)S0029-5493(23)00416-8 DE-627 ger DE-627 rda eng 620 VZ 52.55 bkl Zhou, Liangfu verfasserin aut He atoms diffusion and aggregation in Li 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Advanced reactor projects will consider the utilization of Li2TiO3 as a potential material for neutron moderation and certain radiation shielding applications in fission reactors, as well as for tritium breeder blanket material in fusion reactors. He is one of the particles produced by the reaction of Li with neutrons during the service of Li2TiO3. The diffusion and aggregation of He in Li2TiO3 can cause embrittlement failure of Li2TiO3. Understanding the diffusion and aggregation behavior of helium in Li2TiO3 is crucial for evaluating service life, as well as for the selection and design of advanced nuclear reactor components. In this paper, the diffusion of He in Li2TiO3 and the nucleation behavior of a He cluster were studied by molecular dynamics simulations. The following results were mainly obtained: (1) The long-range diffusion activation energy of He atoms in Li2TiO3 is about 0.5 eV, and it varies significantly with the change of Li vacancy content. (2) He atoms tend to be distributed in the Li layers after sufficient diffusion in Li2TiO3, so the best nucleation site for He clusters in Li2TiO3 may be located in the Li layers. (3) After a He cluster reaches a certain size, it can trigger defects by extruding an O-LiTi2-O layer in its immediate vicinity on one side and migrating with the extruded O-LiTi2-O layer. (4) A He cluster can promote their own growth by releasing pressure. Li Helium Diffusion and aggregation behavior Molecular dynamics simulation He, Li verfasserin aut Yang, Dongyan verfasserin aut Li, Yuhong verfasserin aut Enthalten in Nuclear engineering and design Amsterdam [u.a.] : Elsevier Science, 1966 413 Online-Ressource (DE-627)320411087 (DE-600)2001319-X (DE-576)251938182 0029-5493 nnns volume:413 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 52.55 Kerntechnik Reaktortechnik VZ AR 413
allfieldsSound	10.1016/j.nucengdes.2023.112567 doi (DE-627)ELV064879496 (ELSEVIER)S0029-5493(23)00416-8 DE-627 ger DE-627 rda eng 620 VZ 52.55 bkl Zhou, Liangfu verfasserin aut He atoms diffusion and aggregation in Li 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Advanced reactor projects will consider the utilization of Li2TiO3 as a potential material for neutron moderation and certain radiation shielding applications in fission reactors, as well as for tritium breeder blanket material in fusion reactors. He is one of the particles produced by the reaction of Li with neutrons during the service of Li2TiO3. The diffusion and aggregation of He in Li2TiO3 can cause embrittlement failure of Li2TiO3. Understanding the diffusion and aggregation behavior of helium in Li2TiO3 is crucial for evaluating service life, as well as for the selection and design of advanced nuclear reactor components. In this paper, the diffusion of He in Li2TiO3 and the nucleation behavior of a He cluster were studied by molecular dynamics simulations. The following results were mainly obtained: (1) The long-range diffusion activation energy of He atoms in Li2TiO3 is about 0.5 eV, and it varies significantly with the change of Li vacancy content. (2) He atoms tend to be distributed in the Li layers after sufficient diffusion in Li2TiO3, so the best nucleation site for He clusters in Li2TiO3 may be located in the Li layers. (3) After a He cluster reaches a certain size, it can trigger defects by extruding an O-LiTi2-O layer in its immediate vicinity on one side and migrating with the extruded O-LiTi2-O layer. (4) A He cluster can promote their own growth by releasing pressure. Li Helium Diffusion and aggregation behavior Molecular dynamics simulation He, Li verfasserin aut Yang, Dongyan verfasserin aut Li, Yuhong verfasserin aut Enthalten in Nuclear engineering and design Amsterdam [u.a.] : Elsevier Science, 1966 413 Online-Ressource (DE-627)320411087 (DE-600)2001319-X (DE-576)251938182 0029-5493 nnns volume:413 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 52.55 Kerntechnik Reaktortechnik VZ AR 413
language	English
source	Enthalten in Nuclear engineering and design 413 volume:413
sourceStr	Enthalten in Nuclear engineering and design 413 volume:413
format_phy_str_mv	Article
bklname	Kerntechnik Reaktortechnik
institution	findex.gbv.de
topic_facet	Li Helium Diffusion and aggregation behavior Molecular dynamics simulation
dewey-raw	620
isfreeaccess_bool	false
container_title	Nuclear engineering and design
authorswithroles_txt_mv	Zhou, Liangfu @@aut@@ He, Li @@aut@@ Yang, Dongyan @@aut@@ Li, Yuhong @@aut@@
publishDateDaySort_date	2023-01-01T00:00:00Z
hierarchy_top_id	320411087
dewey-sort	3620
id	ELV064879496
language_de	englisch
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author	Zhou, Liangfu
spellingShingle	Zhou, Liangfu ddc 620 bkl 52.55 misc Li misc Helium misc Diffusion and aggregation behavior misc Molecular dynamics simulation He atoms diffusion and aggregation in Li
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topic_title	620 VZ 52.55 bkl He atoms diffusion and aggregation in Li Li Helium Diffusion and aggregation behavior Molecular dynamics simulation
topic	ddc 620 bkl 52.55 misc Li misc Helium misc Diffusion and aggregation behavior misc Molecular dynamics simulation
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title	He atoms diffusion and aggregation in Li
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title_full	He atoms diffusion and aggregation in Li
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author_browse	Zhou, Liangfu He, Li Yang, Dongyan Li, Yuhong
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title_sort	he atoms diffusion and aggregation in li
title_auth	He atoms diffusion and aggregation in Li
abstract	Advanced reactor projects will consider the utilization of Li2TiO3 as a potential material for neutron moderation and certain radiation shielding applications in fission reactors, as well as for tritium breeder blanket material in fusion reactors. He is one of the particles produced by the reaction of Li with neutrons during the service of Li2TiO3. The diffusion and aggregation of He in Li2TiO3 can cause embrittlement failure of Li2TiO3. Understanding the diffusion and aggregation behavior of helium in Li2TiO3 is crucial for evaluating service life, as well as for the selection and design of advanced nuclear reactor components. In this paper, the diffusion of He in Li2TiO3 and the nucleation behavior of a He cluster were studied by molecular dynamics simulations. The following results were mainly obtained: (1) The long-range diffusion activation energy of He atoms in Li2TiO3 is about 0.5 eV, and it varies significantly with the change of Li vacancy content. (2) He atoms tend to be distributed in the Li layers after sufficient diffusion in Li2TiO3, so the best nucleation site for He clusters in Li2TiO3 may be located in the Li layers. (3) After a He cluster reaches a certain size, it can trigger defects by extruding an O-LiTi2-O layer in its immediate vicinity on one side and migrating with the extruded O-LiTi2-O layer. (4) A He cluster can promote their own growth by releasing pressure.
abstractGer	Advanced reactor projects will consider the utilization of Li2TiO3 as a potential material for neutron moderation and certain radiation shielding applications in fission reactors, as well as for tritium breeder blanket material in fusion reactors. He is one of the particles produced by the reaction of Li with neutrons during the service of Li2TiO3. The diffusion and aggregation of He in Li2TiO3 can cause embrittlement failure of Li2TiO3. Understanding the diffusion and aggregation behavior of helium in Li2TiO3 is crucial for evaluating service life, as well as for the selection and design of advanced nuclear reactor components. In this paper, the diffusion of He in Li2TiO3 and the nucleation behavior of a He cluster were studied by molecular dynamics simulations. The following results were mainly obtained: (1) The long-range diffusion activation energy of He atoms in Li2TiO3 is about 0.5 eV, and it varies significantly with the change of Li vacancy content. (2) He atoms tend to be distributed in the Li layers after sufficient diffusion in Li2TiO3, so the best nucleation site for He clusters in Li2TiO3 may be located in the Li layers. (3) After a He cluster reaches a certain size, it can trigger defects by extruding an O-LiTi2-O layer in its immediate vicinity on one side and migrating with the extruded O-LiTi2-O layer. (4) A He cluster can promote their own growth by releasing pressure.
abstract_unstemmed	Advanced reactor projects will consider the utilization of Li2TiO3 as a potential material for neutron moderation and certain radiation shielding applications in fission reactors, as well as for tritium breeder blanket material in fusion reactors. He is one of the particles produced by the reaction of Li with neutrons during the service of Li2TiO3. The diffusion and aggregation of He in Li2TiO3 can cause embrittlement failure of Li2TiO3. Understanding the diffusion and aggregation behavior of helium in Li2TiO3 is crucial for evaluating service life, as well as for the selection and design of advanced nuclear reactor components. In this paper, the diffusion of He in Li2TiO3 and the nucleation behavior of a He cluster were studied by molecular dynamics simulations. The following results were mainly obtained: (1) The long-range diffusion activation energy of He atoms in Li2TiO3 is about 0.5 eV, and it varies significantly with the change of Li vacancy content. (2) He atoms tend to be distributed in the Li layers after sufficient diffusion in Li2TiO3, so the best nucleation site for He clusters in Li2TiO3 may be located in the Li layers. (3) After a He cluster reaches a certain size, it can trigger defects by extruding an O-LiTi2-O layer in its immediate vicinity on one side and migrating with the extruded O-LiTi2-O layer. (4) A He cluster can promote their own growth by releasing pressure.
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title_short	He atoms diffusion and aggregation in Li
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author2	He, Li Yang, Dongyan Li, Yuhong
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doi_str	10.1016/j.nucengdes.2023.112567
up_date	2024-07-06T21:03:44.443Z
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