Driving force and growth mechanism for spontaneous oxide nanowire formation during the thermal oxidation of metals
The spontaneous formation of oxide nanowires (and whiskers) from the oxidation of metals is a well-established phenomenon that has, however, long resisted interpretation. Here we report new fundamental insights into this phenomenon by studying CuO nanowire formation during the thermal oxidation of c...
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| Veröffentlicht in: | Acta materialia 2011-04, Vol.59 (6), p.2491-2500 |
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| creator | Yuan, Lu Wang, Yiqian Mema, Rediola Zhou, Guangwen |
| description | The spontaneous formation of oxide nanowires (and whiskers) from the oxidation of metals is a well-established phenomenon that has, however, long resisted interpretation. Here we report new fundamental insights into this phenomenon by studying CuO nanowire formation during the thermal oxidation of copper. It is shown that the volume change associated with the solid-state transformation at the CuO/Cu
2O interface produces compressive stresses, which stimulate CuO nanowire growth to accompany the interface reaction. A kinetic model based on the stress-driven grain-boundary diffusion followed by rapid surface diffusion of cations on the sidewall of nanowires is developed to account for CuO nanowire growth. The mechanism proposed explains our observations on CuO nanowires and other past observations. |
| doi_str_mv | 10.1016/j.actamat.2010.12.052 |
| format | Article |
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2O interface produces compressive stresses, which stimulate CuO nanowire growth to accompany the interface reaction. A kinetic model based on the stress-driven grain-boundary diffusion followed by rapid surface diffusion of cations on the sidewall of nanowires is developed to account for CuO nanowire growth. The mechanism proposed explains our observations on CuO nanowires and other past observations.</description><identifier>ISSN: 1359-6454</identifier><identifier>EISSN: 1873-2453</identifier><identifier>DOI: 10.1016/j.actamat.2010.12.052</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Compressive properties ; CuO ; Interface reactions ; Nanocomposites ; Nanomaterials ; Nanostructure ; Nanowires ; Oxidation ; Oxides ; Spontaneous ; Stress ; Transformations</subject><ispartof>Acta materialia, 2011-04, Vol.59 (6), p.2491-2500</ispartof><rights>2010 Acta Materialia Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c440t-864f2c7d3fbedc3444d270f90c4f25f47bcdd411329bd125112708d4157085db3</citedby><cites>FETCH-LOGICAL-c440t-864f2c7d3fbedc3444d270f90c4f25f47bcdd411329bd125112708d4157085db3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1359645410008840$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Yuan, Lu</creatorcontrib><creatorcontrib>Wang, Yiqian</creatorcontrib><creatorcontrib>Mema, Rediola</creatorcontrib><creatorcontrib>Zhou, Guangwen</creatorcontrib><title>Driving force and growth mechanism for spontaneous oxide nanowire formation during the thermal oxidation of metals</title><title>Acta materialia</title><description>The spontaneous formation of oxide nanowires (and whiskers) from the oxidation of metals is a well-established phenomenon that has, however, long resisted interpretation. Here we report new fundamental insights into this phenomenon by studying CuO nanowire formation during the thermal oxidation of copper. It is shown that the volume change associated with the solid-state transformation at the CuO/Cu
2O interface produces compressive stresses, which stimulate CuO nanowire growth to accompany the interface reaction. A kinetic model based on the stress-driven grain-boundary diffusion followed by rapid surface diffusion of cations on the sidewall of nanowires is developed to account for CuO nanowire growth. The mechanism proposed explains our observations on CuO nanowires and other past observations.</description><subject>Compressive properties</subject><subject>CuO</subject><subject>Interface reactions</subject><subject>Nanocomposites</subject><subject>Nanomaterials</subject><subject>Nanostructure</subject><subject>Nanowires</subject><subject>Oxidation</subject><subject>Oxides</subject><subject>Spontaneous</subject><subject>Stress</subject><subject>Transformations</subject><issn>1359-6454</issn><issn>1873-2453</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFUctOwzAQtBBIlMInIOUGlwQ_8zghVJ5SJS5wthzbaV0ldrHdAn-PQ3qGgzXW7OysdgeASwQLBFF5symEjGIQscBw5HABGT4CM1RXJMeUkeP0J6zJS8roKTgLYQMhwhWFM-Dvvdkbu8o656XOhFXZyrvPuM4GLdfCmjCMpSxsnY3CarcLmfsySmdWWPdpvB7LabZxNlM7P1rFtR5fYvtf7VR0XbKMog_n4KRLoC8OOAfvjw9vi-d8-fr0srhb5pJSGPO6pB2WlSJdq5UklFKFK9g1UCaedbRqpVIUIYKbViHMUNoI1olhCZhqyRxcTb5b7z52OkQ-mCB1309r8LpsaoSbkiTl9Z9KVFWQsBqmU84Bm6TSuxC87vjWm0H4b44gH9PgG35Ig49pcIR5SiP13U59Om28N9rzII22Uqt0Qhm5cuYfhx8dvJd1</recordid><startdate>20110401</startdate><enddate>20110401</enddate><creator>Yuan, Lu</creator><creator>Wang, Yiqian</creator><creator>Mema, Rediola</creator><creator>Zhou, Guangwen</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20110401</creationdate><title>Driving force and growth mechanism for spontaneous oxide nanowire formation during the thermal oxidation of metals</title><author>Yuan, Lu ; Wang, Yiqian ; Mema, Rediola ; Zhou, Guangwen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c440t-864f2c7d3fbedc3444d270f90c4f25f47bcdd411329bd125112708d4157085db3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Compressive properties</topic><topic>CuO</topic><topic>Interface reactions</topic><topic>Nanocomposites</topic><topic>Nanomaterials</topic><topic>Nanostructure</topic><topic>Nanowires</topic><topic>Oxidation</topic><topic>Oxides</topic><topic>Spontaneous</topic><topic>Stress</topic><topic>Transformations</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yuan, Lu</creatorcontrib><creatorcontrib>Wang, Yiqian</creatorcontrib><creatorcontrib>Mema, Rediola</creatorcontrib><creatorcontrib>Zhou, Guangwen</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Acta materialia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yuan, Lu</au><au>Wang, Yiqian</au><au>Mema, Rediola</au><au>Zhou, Guangwen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Driving force and growth mechanism for spontaneous oxide nanowire formation during the thermal oxidation of metals</atitle><jtitle>Acta materialia</jtitle><date>2011-04-01</date><risdate>2011</risdate><volume>59</volume><issue>6</issue><spage>2491</spage><epage>2500</epage><pages>2491-2500</pages><issn>1359-6454</issn><eissn>1873-2453</eissn><abstract>The spontaneous formation of oxide nanowires (and whiskers) from the oxidation of metals is a well-established phenomenon that has, however, long resisted interpretation. Here we report new fundamental insights into this phenomenon by studying CuO nanowire formation during the thermal oxidation of copper. It is shown that the volume change associated with the solid-state transformation at the CuO/Cu
2O interface produces compressive stresses, which stimulate CuO nanowire growth to accompany the interface reaction. A kinetic model based on the stress-driven grain-boundary diffusion followed by rapid surface diffusion of cations on the sidewall of nanowires is developed to account for CuO nanowire growth. The mechanism proposed explains our observations on CuO nanowires and other past observations.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.actamat.2010.12.052</doi><tpages>10</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Compressive properties CuO Interface reactions Nanocomposites Nanomaterials Nanostructure Nanowires Oxidation Oxides Spontaneous Stress Transformations |
| title | Driving force and growth mechanism for spontaneous oxide nanowire formation during the thermal oxidation of metals |
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