Short−range order in Au−Fe radiation−enhanced diffusion and the effectiveness of 14−MeV neutrons
Solute clustering in a Au−Fe (17% Fe) alloy has been demonstrated by Mössbauer effect measurements of the magnetic ordering temperature. Neutron irradiation at room temperature produces clustering by means of radiation−enhanced diffusion, while annealing at high temperatures is required to produce c...
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| Veröffentlicht in: | J. Appl. Phys., v. 46, no. 1, pp. 99-104 v. 46, no. 1, pp. 99-104, 1975-01, Vol.46 (1), p.99-104 |
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| container_title | J. Appl. Phys., v. 46, no. 1, pp. 99-104 |
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| creator | Borg, R. J. Dienes, G. J. |
| description | Solute clustering in a Au−Fe (17% Fe) alloy has been demonstrated by Mössbauer effect measurements of the magnetic ordering temperature. Neutron irradiation at room temperature produces clustering by means of radiation−enhanced diffusion, while annealing at high temperatures is required to produce clustering thermally. The radiation−enhanced diffusion effect was used to compare directly the efficiency of mobile defect production by 14−MeV fusion neutrons and reactor neutrons. The 14−MeV neutrons are more effective by about a factor of 10 than the reactor neutrons (E≳0.1 MeV) in producing mobile lattice defects. Other compositions failed to respond to radiation−induced clustering, suggesting that Au−17−Fe is in a critical composition region regarding the response of the magnetic ordering temperature to variations in short−range order. |
| doi_str_mv | 10.1063/1.321374 |
| format | Article |
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J. ; Dienes, G. J.</creator><creatorcontrib>Borg, R. J. ; Dienes, G. J. ; Lawrence Livermore Laboratory, University of California, Livermore, California 94550</creatorcontrib><description>Solute clustering in a Au−Fe (17% Fe) alloy has been demonstrated by Mössbauer effect measurements of the magnetic ordering temperature. Neutron irradiation at room temperature produces clustering by means of radiation−enhanced diffusion, while annealing at high temperatures is required to produce clustering thermally. The radiation−enhanced diffusion effect was used to compare directly the efficiency of mobile defect production by 14−MeV fusion neutrons and reactor neutrons. The 14−MeV neutrons are more effective by about a factor of 10 than the reactor neutrons (E≳0.1 MeV) in producing mobile lattice defects. Other compositions failed to respond to radiation−induced clustering, suggesting that Au−17−Fe is in a critical composition region regarding the response of the magnetic ordering temperature to variations in short−range order.</description><identifier>ISSN: 0021-8979</identifier><identifier>EISSN: 1089-7550</identifier><identifier>DOI: 10.1063/1.321374</identifier><language>eng</language><publisher>United States</publisher><subject>CRYSTAL DEFECTS ; DIFFUSION ; GOLD BASE ALLOYS- PHYSICAL RADIATION EFFECTS ; HYPERFINE STRUCTURE ; IRON ALLOYS- PHYSICAL RADIATION EFFECTS ; IRRADIATION ; MEV RANGE 10-100 ; MOESSBAUER EFFECT ; N50240 -Metals, Ceramics, & Other Materials-Metals & Alloys-Radiation Effects ; NEUTRON BEAMS</subject><ispartof>J. Appl. 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J.</creatorcontrib><creatorcontrib>Lawrence Livermore Laboratory, University of California, Livermore, California 94550</creatorcontrib><title>Short−range order in Au−Fe radiation−enhanced diffusion and the effectiveness of 14−MeV neutrons</title><title>J. Appl. Phys., v. 46, no. 1, pp. 99-104</title><description>Solute clustering in a Au−Fe (17% Fe) alloy has been demonstrated by Mössbauer effect measurements of the magnetic ordering temperature. Neutron irradiation at room temperature produces clustering by means of radiation−enhanced diffusion, while annealing at high temperatures is required to produce clustering thermally. The radiation−enhanced diffusion effect was used to compare directly the efficiency of mobile defect production by 14−MeV fusion neutrons and reactor neutrons. The 14−MeV neutrons are more effective by about a factor of 10 than the reactor neutrons (E≳0.1 MeV) in producing mobile lattice defects. Other compositions failed to respond to radiation−induced clustering, suggesting that Au−17−Fe is in a critical composition region regarding the response of the magnetic ordering temperature to variations in short−range order.</description><subject>CRYSTAL DEFECTS</subject><subject>DIFFUSION</subject><subject>GOLD BASE ALLOYS- PHYSICAL RADIATION EFFECTS</subject><subject>HYPERFINE STRUCTURE</subject><subject>IRON ALLOYS- PHYSICAL RADIATION EFFECTS</subject><subject>IRRADIATION</subject><subject>MEV RANGE 10-100</subject><subject>MOESSBAUER EFFECT</subject><subject>N50240 -Metals, Ceramics, & Other Materials-Metals & Alloys-Radiation Effects</subject><subject>NEUTRON BEAMS</subject><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1975</creationdate><recordtype>article</recordtype><recordid>eNotkMtKBDEURIMoOI6CnxBciJsebx6TdC9FfIHiwsc2xPSNHRkTTdKCf-DaT_RLbBlXlypOFZciZJ_BgoESx2whOBNabpAZg7Zr9HIJm2QGwFnTdrrbJjulvAAw1opuRoa7IeX68_WdbXxGmnKPmYZIT8bJO0eabR9sDSlOEuNgo8Oe9sH7sUwmtbGndUCK3qOr4QMjlkKTp0xOgRt8pBHHmlMsu2TL21XBvf87Jw_nZ_enl8317cXV6cl143graqNASuitAq8VdIDaOd6BRC87tMyypXiyjjvfeslF33agpHKct1xpgVJrMScH695UajDFhYpucCnG6T8j-RIUFxN0uIbecnofsVTzGorD1cpGTGMxnEul-UTOydEadDmVktGbtxxebf40DMzf3oaZ9d7iF00wdO4</recordid><startdate>19750101</startdate><enddate>19750101</enddate><creator>Borg, R. J.</creator><creator>Dienes, G. J.</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>OTOTI</scope></search><sort><creationdate>19750101</creationdate><title>Short−range order in Au−Fe radiation−enhanced diffusion and the effectiveness of 14−MeV neutrons</title><author>Borg, R. J. ; Dienes, G. J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c283t-60440da60f76090e7cc2904ef49ea1a153bac2cf8f423d890646c2282673e4773</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1975</creationdate><topic>CRYSTAL DEFECTS</topic><topic>DIFFUSION</topic><topic>GOLD BASE ALLOYS- PHYSICAL RADIATION EFFECTS</topic><topic>HYPERFINE STRUCTURE</topic><topic>IRON ALLOYS- PHYSICAL RADIATION EFFECTS</topic><topic>IRRADIATION</topic><topic>MEV RANGE 10-100</topic><topic>MOESSBAUER EFFECT</topic><topic>N50240 -Metals, Ceramics, & Other Materials-Metals & Alloys-Radiation Effects</topic><topic>NEUTRON BEAMS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Borg, R. J.</creatorcontrib><creatorcontrib>Dienes, G. J.</creatorcontrib><creatorcontrib>Lawrence Livermore Laboratory, University of California, Livermore, California 94550</creatorcontrib><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>OSTI.GOV</collection><jtitle>J. Appl. Phys., v. 46, no. 1, pp. 99-104</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Borg, R. J.</au><au>Dienes, G. J.</au><aucorp>Lawrence Livermore Laboratory, University of California, Livermore, California 94550</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Short−range order in Au−Fe radiation−enhanced diffusion and the effectiveness of 14−MeV neutrons</atitle><jtitle>J. Appl. Phys., v. 46, no. 1, pp. 99-104</jtitle><date>1975-01-01</date><risdate>1975</risdate><volume>46</volume><issue>1</issue><spage>99</spage><epage>104</epage><pages>99-104</pages><issn>0021-8979</issn><eissn>1089-7550</eissn><abstract>Solute clustering in a Au−Fe (17% Fe) alloy has been demonstrated by Mössbauer effect measurements of the magnetic ordering temperature. Neutron irradiation at room temperature produces clustering by means of radiation−enhanced diffusion, while annealing at high temperatures is required to produce clustering thermally. The radiation−enhanced diffusion effect was used to compare directly the efficiency of mobile defect production by 14−MeV fusion neutrons and reactor neutrons. The 14−MeV neutrons are more effective by about a factor of 10 than the reactor neutrons (E≳0.1 MeV) in producing mobile lattice defects. Other compositions failed to respond to radiation−induced clustering, suggesting that Au−17−Fe is in a critical composition region regarding the response of the magnetic ordering temperature to variations in short−range order.</abstract><cop>United States</cop><doi>10.1063/1.321374</doi><tpages>6</tpages></addata></record> |
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| ispartof | J. Appl. Phys., v. 46, no. 1, pp. 99-104, 1975-01, Vol.46 (1), p.99-104 |
| issn | 0021-8979 1089-7550 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_22467262 |
| source | AIP Digital Archive |
| subjects | CRYSTAL DEFECTS DIFFUSION GOLD BASE ALLOYS- PHYSICAL RADIATION EFFECTS HYPERFINE STRUCTURE IRON ALLOYS- PHYSICAL RADIATION EFFECTS IRRADIATION MEV RANGE 10-100 MOESSBAUER EFFECT N50240 -Metals, Ceramics, & Other Materials-Metals & Alloys-Radiation Effects NEUTRON BEAMS |
| title | Short−range order in Au−Fe radiation−enhanced diffusion and the effectiveness of 14−MeV neutrons |
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