The transport and fate of helium in nanostructured ferritic alloys at fusion relevant He/dpa ratios and dpa rates
A novel in situ 59Ni(n,α) reaction He-implanter technique is described, that can be used to characterize the effect of the He/dpa ratio on microstructural evolution and changes in the flow properties of various materials at fusion relevant conditions. Irradiations in the high flux isotope reactor re...
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| Veröffentlicht in: | Journal of Nuclear Materials, 367-370:399-410 367-370:399-410, 2007-08, Vol.367, p.399-410 |
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| container_title | Journal of Nuclear Materials, 367-370:399-410 |
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| creator | Yamamoto, T. Odette, G.R. Miao, P. Hoelzer, D.T. Bentley, J. Hashimoto, N. Tanigawa, H. Kurtz, R.J. |
| description | A novel in situ
59Ni(n,α) reaction He-implanter technique is described, that can be used to characterize the effect of the He/dpa ratio on microstructural evolution and changes in the flow properties of various materials at fusion relevant conditions. Irradiations in the high flux isotope reactor resulted in α-implantation from 1 to 5
μm thick NiAl coatings on TEM discs producing a uniform He concentration of 5–50
appm He/dpa to a depth of 5–8
μm. Initial post-irradiation TEM observations of MA957 irradiated to 9
dpa and 380
appm He at 500
°C provide strong evidence for the existence of a high density of small ⩽1
nm size bubbles trapped on nano-scale YTiO clusters. In contrast, similar irradiations of Eurofer 97, described in a companion paper, produce a lower number density of larger cavities, which may be a mixture of bubbles and voids. |
| doi_str_mv | 10.1016/j.jnucmat.2007.03.047 |
| format | Article |
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59Ni(n,α) reaction He-implanter technique is described, that can be used to characterize the effect of the He/dpa ratio on microstructural evolution and changes in the flow properties of various materials at fusion relevant conditions. Irradiations in the high flux isotope reactor resulted in α-implantation from 1 to 5
μm thick NiAl coatings on TEM discs producing a uniform He concentration of 5–50
appm He/dpa to a depth of 5–8
μm. Initial post-irradiation TEM observations of MA957 irradiated to 9
dpa and 380
appm He at 500
°C provide strong evidence for the existence of a high density of small ⩽1
nm size bubbles trapped on nano-scale YTiO clusters. In contrast, similar irradiations of Eurofer 97, described in a companion paper, produce a lower number density of larger cavities, which may be a mixture of bubbles and voids.</description><identifier>ISSN: 0022-3115</identifier><identifier>EISSN: 1873-4820</identifier><identifier>DOI: 10.1016/j.jnucmat.2007.03.047</identifier><identifier>CODEN: JNUMAM</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Controled nuclear fusion plants ; Energy ; Energy. Thermal use of fuels ; Exact sciences and technology ; Fission nuclear power plants ; Fuels ; fusion, helium, neutron irradiation, ferritic/martensitic steels ; Installations for energy generation and conversion: thermal and electrical energy ; Nuclear fuels</subject><ispartof>Journal of Nuclear Materials, 367-370:399-410, 2007-08, Vol.367, p.399-410</ispartof><rights>2007 Elsevier B.V.</rights><rights>2007 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c524t-f7483e5c6f4a6a1d09a5e51b18ce1e00a5d7a3624f17550a1d67840c895fbdd53</citedby><cites>FETCH-LOGICAL-c524t-f7483e5c6f4a6a1d09a5e51b18ce1e00a5d7a3624f17550a1d67840c895fbdd53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jnucmat.2007.03.047$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>309,310,314,780,784,789,790,885,3550,23930,23931,25140,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=19004760$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/917966$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Yamamoto, T.</creatorcontrib><creatorcontrib>Odette, G.R.</creatorcontrib><creatorcontrib>Miao, P.</creatorcontrib><creatorcontrib>Hoelzer, D.T.</creatorcontrib><creatorcontrib>Bentley, J.</creatorcontrib><creatorcontrib>Hashimoto, N.</creatorcontrib><creatorcontrib>Tanigawa, H.</creatorcontrib><creatorcontrib>Kurtz, R.J.</creatorcontrib><creatorcontrib>Pacific Northwest National Lab. (PNNL), Richland, WA (United States)</creatorcontrib><title>The transport and fate of helium in nanostructured ferritic alloys at fusion relevant He/dpa ratios and dpa rates</title><title>Journal of Nuclear Materials, 367-370:399-410</title><description>A novel in situ
59Ni(n,α) reaction He-implanter technique is described, that can be used to characterize the effect of the He/dpa ratio on microstructural evolution and changes in the flow properties of various materials at fusion relevant conditions. Irradiations in the high flux isotope reactor resulted in α-implantation from 1 to 5
μm thick NiAl coatings on TEM discs producing a uniform He concentration of 5–50
appm He/dpa to a depth of 5–8
μm. Initial post-irradiation TEM observations of MA957 irradiated to 9
dpa and 380
appm He at 500
°C provide strong evidence for the existence of a high density of small ⩽1
nm size bubbles trapped on nano-scale YTiO clusters. In contrast, similar irradiations of Eurofer 97, described in a companion paper, produce a lower number density of larger cavities, which may be a mixture of bubbles and voids.</description><subject>Applied sciences</subject><subject>Controled nuclear fusion plants</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Exact sciences and technology</subject><subject>Fission nuclear power plants</subject><subject>Fuels</subject><subject>fusion, helium, neutron irradiation, ferritic/martensitic steels</subject><subject>Installations for energy generation and conversion: thermal and electrical energy</subject><subject>Nuclear fuels</subject><issn>0022-3115</issn><issn>1873-4820</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNqNkU1rGzEQhkVpoW7an1BQD-1tNyNptR-nUkLaBAK9pGcx0Y6wzFpyJG0g_75ybegxOYmBZ94R78PYZwGtANFf7tpdWO0eSysBhhZUC93whm3EOKimGyW8ZRsAKRslhH7PPuS8AwA9gd6wx_st8ZIw5ENMhWOYucNCPDq-pcWve-4DDxhiLmm1ZU1UAUrJF285Lkt8zhwLd2v2MfBECz1hKPyGLucD8oTFx_wv9TxS_sjeOVwyfTq_F-zPz-v7q5vm7vev26sfd43VsiuNG7pRkba967BHMcOEmrR4EKMlQQCo5wFVLzsnBq2hEv0wdmDHSbuHedbqgn055dave5OtL2S3NoZAtphJDFPfV-bbiTmk-LhSLmbvs6VlwUBxzUaBELKX4hUgTJ2ULydKkGqYQFVQn0CbYs6JnDkkv8f0bASYo1azM2et5qjVgDJVa937ej6A2eLiqjrr8__lCSrVQ-W-nziqHT95SscKKFiafTo2MEf_wqW_4PS7hQ</recordid><startdate>20070801</startdate><enddate>20070801</enddate><creator>Yamamoto, T.</creator><creator>Odette, G.R.</creator><creator>Miao, P.</creator><creator>Hoelzer, D.T.</creator><creator>Bentley, J.</creator><creator>Hashimoto, N.</creator><creator>Tanigawa, H.</creator><creator>Kurtz, R.J.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>7TB</scope><scope>7U5</scope><scope>FR3</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20070801</creationdate><title>The transport and fate of helium in nanostructured ferritic alloys at fusion relevant He/dpa ratios and dpa rates</title><author>Yamamoto, T. ; Odette, G.R. ; Miao, P. ; Hoelzer, D.T. ; Bentley, J. ; Hashimoto, N. ; Tanigawa, H. ; Kurtz, R.J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c524t-f7483e5c6f4a6a1d09a5e51b18ce1e00a5d7a3624f17550a1d67840c895fbdd53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Applied sciences</topic><topic>Controled nuclear fusion plants</topic><topic>Energy</topic><topic>Energy. 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59Ni(n,α) reaction He-implanter technique is described, that can be used to characterize the effect of the He/dpa ratio on microstructural evolution and changes in the flow properties of various materials at fusion relevant conditions. Irradiations in the high flux isotope reactor resulted in α-implantation from 1 to 5
μm thick NiAl coatings on TEM discs producing a uniform He concentration of 5–50
appm He/dpa to a depth of 5–8
μm. Initial post-irradiation TEM observations of MA957 irradiated to 9
dpa and 380
appm He at 500
°C provide strong evidence for the existence of a high density of small ⩽1
nm size bubbles trapped on nano-scale YTiO clusters. In contrast, similar irradiations of Eurofer 97, described in a companion paper, produce a lower number density of larger cavities, which may be a mixture of bubbles and voids.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jnucmat.2007.03.047</doi><tpages>12</tpages></addata></record> |
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| subjects | Applied sciences Controled nuclear fusion plants Energy Energy. Thermal use of fuels Exact sciences and technology Fission nuclear power plants Fuels fusion, helium, neutron irradiation, ferritic/martensitic steels Installations for energy generation and conversion: thermal and electrical energy Nuclear fuels |
| title | The transport and fate of helium in nanostructured ferritic alloys at fusion relevant He/dpa ratios and dpa rates |
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