Effects of temperature and surface contamination on D retention in ultrathin Li films on TZM
In this work, we investigate deuterium retention at the Mo–Li interface by studying thin Li films three monolayers thick on a TZM Mo alloy. Li films at temperatures between 315 and 460K were exposed to a deuterium ion beam and D retention was measured using temperature programmed desorption. In the...
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| Veröffentlicht in: | Journal of nuclear materials 2015-08, Vol.463 (C), p.1177-1180 |
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| container_title | Journal of nuclear materials |
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| creator | Capece, A.M. Roszell, J.P. Skinner, C.H. Koel, B.E. |
| description | In this work, we investigate deuterium retention at the Mo–Li interface by studying thin Li films three monolayers thick on a TZM Mo alloy. Li films at temperatures between 315 and 460K were exposed to a deuterium ion beam and D retention was measured using temperature programmed desorption. In the absence of oxygen, D is retained as LiD, and the relative amount of retained D decreases with increasing substrate temperature. In three-monolayer thick lithium oxide films, the amount of D retained was 2.5 times higher than the amount retained as LiD in the metallic Li film. However, oxygen reduces the thermal stability of D in the film, causing D2O and D2 to be released from the surface at temperatures 150–200K below the LiD decomposition temperature. These results highlight the importance of maintaining a metallic Li layer for high D retention in Li films on TZM at elevated temperatures. |
| doi_str_mv | 10.1016/j.jnucmat.2014.10.048 |
| format | Article |
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Li films at temperatures between 315 and 460K were exposed to a deuterium ion beam and D retention was measured using temperature programmed desorption. In the absence of oxygen, D is retained as LiD, and the relative amount of retained D decreases with increasing substrate temperature. In three-monolayer thick lithium oxide films, the amount of D retained was 2.5 times higher than the amount retained as LiD in the metallic Li film. However, oxygen reduces the thermal stability of D in the film, causing D2O and D2 to be released from the surface at temperatures 150–200K below the LiD decomposition temperature. 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Li films at temperatures between 315 and 460K were exposed to a deuterium ion beam and D retention was measured using temperature programmed desorption. In the absence of oxygen, D is retained as LiD, and the relative amount of retained D decreases with increasing substrate temperature. In three-monolayer thick lithium oxide films, the amount of D retained was 2.5 times higher than the amount retained as LiD in the metallic Li film. However, oxygen reduces the thermal stability of D in the film, causing D2O and D2 to be released from the surface at temperatures 150–200K below the LiD decomposition temperature. These results highlight the importance of maintaining a metallic Li layer for high D retention in Li films on TZM at elevated temperatures.</description><subject>Deuterium</subject><subject>deuterium retention</subject><subject>Ion beams</subject><subject>Li thin films</subject><subject>Lithium</subject><subject>MATERIALS SCIENCE</subject><subject>Molybdenum</subject><subject>Molybdenum base alloys</subject><subject>Nuclear engineering</subject><subject>oxidation</subject><subject>Thick films</subject><subject>Thin films</subject><issn>0022-3115</issn><issn>1873-4820</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqNkV9rHCEUxaWk0E3aj1CQPPVltjqO_55CSdI2sKUv6UspiKtX4jLjbNQp9NvXyeY9AUHv5Xcux3sQ-kjJlhIqPh-2h7S4ydZtT-jQelsyqDdoQ5Vk3aB6coY2hPR9xyjl79B5KQdCCNeEb9Cf2xDA1YLngCtMR8i2LhmwTR6XJQfrALs5VTvFZGucE27nBmeokJ7KmPAy1qZ6aK9dxCGOU1mh-98_3qO3wY4FPjzfF-jX19v76-_d7ue3u-svu85xLmrnqXLcOS4c1YpJIjXdeyKDGOQ-OOED2QsrB9ED08p6DVR71SsGXHnqdGAX6PI0dy41muJiBffQXKf2M0OZ7jlXDfp0go55flygVDPF4mAcbYJ5KYZKSdgghRCvQAehNGvrbSg_oS7PpWQI5pjjZPM_Q4lZ0zEH85yOWdNZ2y2dprs66aDt5W-EvNqG5MDHvLr2c3xhwn8YKJqc</recordid><startdate>20150801</startdate><enddate>20150801</enddate><creator>Capece, A.M.</creator><creator>Roszell, J.P.</creator><creator>Skinner, C.H.</creator><creator>Koel, B.E.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope><scope>OIOZB</scope><scope>OTOTI</scope></search><sort><creationdate>20150801</creationdate><title>Effects of temperature and surface contamination on D retention in ultrathin Li films on TZM</title><author>Capece, A.M. ; Roszell, J.P. ; Skinner, C.H. ; Koel, B.E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c556t-d18c5cc56c198370791bd07f647bfc6df0b6a7462e398ad9e19d8283e58d1c9f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Deuterium</topic><topic>deuterium retention</topic><topic>Ion beams</topic><topic>Li thin films</topic><topic>Lithium</topic><topic>MATERIALS SCIENCE</topic><topic>Molybdenum</topic><topic>Molybdenum base alloys</topic><topic>Nuclear engineering</topic><topic>oxidation</topic><topic>Thick films</topic><topic>Thin films</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Capece, A.M.</creatorcontrib><creatorcontrib>Roszell, J.P.</creatorcontrib><creatorcontrib>Skinner, C.H.</creatorcontrib><creatorcontrib>Koel, B.E.</creatorcontrib><creatorcontrib>Princeton Univ., NJ (United States)</creatorcontrib><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV - Hybrid</collection><collection>OSTI.GOV</collection><jtitle>Journal of nuclear materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Capece, A.M.</au><au>Roszell, J.P.</au><au>Skinner, C.H.</au><au>Koel, B.E.</au><aucorp>Princeton Univ., NJ (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of temperature and surface contamination on D retention in ultrathin Li films on TZM</atitle><jtitle>Journal of nuclear materials</jtitle><date>2015-08-01</date><risdate>2015</risdate><volume>463</volume><issue>C</issue><spage>1177</spage><epage>1180</epage><pages>1177-1180</pages><issn>0022-3115</issn><eissn>1873-4820</eissn><abstract>In this work, we investigate deuterium retention at the Mo–Li interface by studying thin Li films three monolayers thick on a TZM Mo alloy. Li films at temperatures between 315 and 460K were exposed to a deuterium ion beam and D retention was measured using temperature programmed desorption. In the absence of oxygen, D is retained as LiD, and the relative amount of retained D decreases with increasing substrate temperature. In three-monolayer thick lithium oxide films, the amount of D retained was 2.5 times higher than the amount retained as LiD in the metallic Li film. However, oxygen reduces the thermal stability of D in the film, causing D2O and D2 to be released from the surface at temperatures 150–200K below the LiD decomposition temperature. These results highlight the importance of maintaining a metallic Li layer for high D retention in Li films on TZM at elevated temperatures.</abstract><cop>United States</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jnucmat.2014.10.048</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Deuterium deuterium retention Ion beams Li thin films Lithium MATERIALS SCIENCE Molybdenum Molybdenum base alloys Nuclear engineering oxidation Thick films Thin films |
| title | Effects of temperature and surface contamination on D retention in ultrathin Li films on TZM |
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