Diffusion of Hf and Nb in Zr19%Nb
Diffusion of Hf and Nb in large-grained bcc Zr19%Nb has been studied. Diffusion coefficients of Hf, D(Hf), were measured in the range 620–1173 K and D(Nb) was measured at 920 and 1167 K. The Elf diffusion profiles were determined by SIMS and the Nb profiles by microtome sectioning and radio-tracer...
Gespeichert in:
| Veröffentlicht in: | Journal of nuclear materials 1996-05, Vol.230 (1), p.36-40 |
|---|---|
| Hauptverfasser: | , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 40 |
|---|---|
| container_issue | 1 |
| container_start_page | 36 |
| container_title | Journal of nuclear materials |
| container_volume | 230 |
| creator | Zou, H. Hood, G.M. Schultz, R.J. Matsuura, N. Roy, J.A. Jackman, J.A |
| description | Diffusion of Hf and Nb in large-grained bcc Zr19%Nb has been studied. Diffusion coefficients of Hf, D(Hf), were measured in the range 620–1173 K and D(Nb) was measured at 920 and 1167 K. The Elf diffusion profiles were determined by SIMS and the Nb profiles by microtome sectioning and radio-tracer counting. The Hf data show a smooth, temperature-dependent behaviour through the monotectoid temperature, 875 K, and may be characterised by
D ≃ 10
−9 × exp(−1.4(eV/
kT)m
2/s.
D(Nb) tends to be lower than the corresponding values for
D(Hf). Overall, diffusion of Hf and Nb are characteristic of diffusion in bcc Zr. Surface hold-up (oxide film) at low temperatures was overcome by using ion-implanted Hf diffusion sources. The results are compared with earlier work and discussed in terms of diffusion mechanisms and the β-phase transformation of commercial Zr2.5Nb. |
| doi_str_mv | 10.1016/0022-3115(96)00024-4 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_26123907</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>0022311596000244</els_id><sourcerecordid>26123907</sourcerecordid><originalsourceid>FETCH-LOGICAL-c335t-5ed9c1c909ed31289b9020916ec0d8dfa187397dbaeed5d2021187b6188335d83</originalsourceid><addsrcrecordid>eNp9kM9KAzEQxoMoWKtv4GEPKnpYnUl2t8lFKPVPhVIvevESdpMJRNrdmrSCT-Kr-FQ-g1kqHj0N3_D7hvk-xo4RLhGwugLgPBeI5bmqLiCpIi922ADlSOSF5LDLBn_IPjuI8TVBpYJywE5uvHOb6Ls261w2dVnd2mzeZL7NXsL35xeq03lzyPZcvYh09DuH7Pnu9mkyzWeP9w-T8Sw3QpTrvCSrDBoFiqxALlWjgIPCigxYaV3dP6RGtqmJbGk5cEybpkIpk99KMWRn27ur0L1tKK710kdDi0XdUreJmlfIhYJRAostaEIXYyCnV8Ev6_ChEXRfie7z6j6vVr1Ilegi2a63Nkoh3j0FHY2n1pD1gcxa287_f-AHvDVlBA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>26123907</pqid></control><display><type>article</type><title>Diffusion of Hf and Nb in Zr19%Nb</title><source>Elsevier ScienceDirect Journals</source><creator>Zou, H. ; Hood, G.M. ; Schultz, R.J. ; Matsuura, N. ; Roy, J.A. ; Jackman, J.A</creator><creatorcontrib>Zou, H. ; Hood, G.M. ; Schultz, R.J. ; Matsuura, N. ; Roy, J.A. ; Jackman, J.A</creatorcontrib><description>Diffusion of Hf and Nb in large-grained bcc Zr19%Nb has been studied. Diffusion coefficients of Hf, D(Hf), were measured in the range 620–1173 K and D(Nb) was measured at 920 and 1167 K. The Elf diffusion profiles were determined by SIMS and the Nb profiles by microtome sectioning and radio-tracer counting. The Hf data show a smooth, temperature-dependent behaviour through the monotectoid temperature, 875 K, and may be characterised by
D ≃ 10
−9 × exp(−1.4(eV/
kT)m
2/s.
D(Nb) tends to be lower than the corresponding values for
D(Hf). Overall, diffusion of Hf and Nb are characteristic of diffusion in bcc Zr. Surface hold-up (oxide film) at low temperatures was overcome by using ion-implanted Hf diffusion sources. The results are compared with earlier work and discussed in terms of diffusion mechanisms and the β-phase transformation of commercial Zr2.5Nb.</description><identifier>ISSN: 0022-3115</identifier><identifier>EISSN: 1873-4820</identifier><identifier>DOI: 10.1016/0022-3115(96)00024-4</identifier><language>eng</language><publisher>Elsevier B.V</publisher><ispartof>Journal of nuclear materials, 1996-05, Vol.230 (1), p.36-40</ispartof><rights>1996</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c335t-5ed9c1c909ed31289b9020916ec0d8dfa187397dbaeed5d2021187b6188335d83</citedby><cites>FETCH-LOGICAL-c335t-5ed9c1c909ed31289b9020916ec0d8dfa187397dbaeed5d2021187b6188335d83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/0022311596000244$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Zou, H.</creatorcontrib><creatorcontrib>Hood, G.M.</creatorcontrib><creatorcontrib>Schultz, R.J.</creatorcontrib><creatorcontrib>Matsuura, N.</creatorcontrib><creatorcontrib>Roy, J.A.</creatorcontrib><creatorcontrib>Jackman, J.A</creatorcontrib><title>Diffusion of Hf and Nb in Zr19%Nb</title><title>Journal of nuclear materials</title><description>Diffusion of Hf and Nb in large-grained bcc Zr19%Nb has been studied. Diffusion coefficients of Hf, D(Hf), were measured in the range 620–1173 K and D(Nb) was measured at 920 and 1167 K. The Elf diffusion profiles were determined by SIMS and the Nb profiles by microtome sectioning and radio-tracer counting. The Hf data show a smooth, temperature-dependent behaviour through the monotectoid temperature, 875 K, and may be characterised by
D ≃ 10
−9 × exp(−1.4(eV/
kT)m
2/s.
D(Nb) tends to be lower than the corresponding values for
D(Hf). Overall, diffusion of Hf and Nb are characteristic of diffusion in bcc Zr. Surface hold-up (oxide film) at low temperatures was overcome by using ion-implanted Hf diffusion sources. The results are compared with earlier work and discussed in terms of diffusion mechanisms and the β-phase transformation of commercial Zr2.5Nb.</description><issn>0022-3115</issn><issn>1873-4820</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNp9kM9KAzEQxoMoWKtv4GEPKnpYnUl2t8lFKPVPhVIvevESdpMJRNrdmrSCT-Kr-FQ-g1kqHj0N3_D7hvk-xo4RLhGwugLgPBeI5bmqLiCpIi922ADlSOSF5LDLBn_IPjuI8TVBpYJywE5uvHOb6Ls261w2dVnd2mzeZL7NXsL35xeq03lzyPZcvYh09DuH7Pnu9mkyzWeP9w-T8Sw3QpTrvCSrDBoFiqxALlWjgIPCigxYaV3dP6RGtqmJbGk5cEybpkIpk99KMWRn27ur0L1tKK710kdDi0XdUreJmlfIhYJRAostaEIXYyCnV8Ev6_ChEXRfie7z6j6vVr1Ilegi2a63Nkoh3j0FHY2n1pD1gcxa287_f-AHvDVlBA</recordid><startdate>19960501</startdate><enddate>19960501</enddate><creator>Zou, H.</creator><creator>Hood, G.M.</creator><creator>Schultz, R.J.</creator><creator>Matsuura, N.</creator><creator>Roy, J.A.</creator><creator>Jackman, J.A</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>19960501</creationdate><title>Diffusion of Hf and Nb in Zr19%Nb</title><author>Zou, H. ; Hood, G.M. ; Schultz, R.J. ; Matsuura, N. ; Roy, J.A. ; Jackman, J.A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c335t-5ed9c1c909ed31289b9020916ec0d8dfa187397dbaeed5d2021187b6188335d83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zou, H.</creatorcontrib><creatorcontrib>Hood, G.M.</creatorcontrib><creatorcontrib>Schultz, R.J.</creatorcontrib><creatorcontrib>Matsuura, N.</creatorcontrib><creatorcontrib>Roy, J.A.</creatorcontrib><creatorcontrib>Jackman, J.A</creatorcontrib><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of nuclear materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zou, H.</au><au>Hood, G.M.</au><au>Schultz, R.J.</au><au>Matsuura, N.</au><au>Roy, J.A.</au><au>Jackman, J.A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Diffusion of Hf and Nb in Zr19%Nb</atitle><jtitle>Journal of nuclear materials</jtitle><date>1996-05-01</date><risdate>1996</risdate><volume>230</volume><issue>1</issue><spage>36</spage><epage>40</epage><pages>36-40</pages><issn>0022-3115</issn><eissn>1873-4820</eissn><abstract>Diffusion of Hf and Nb in large-grained bcc Zr19%Nb has been studied. Diffusion coefficients of Hf, D(Hf), were measured in the range 620–1173 K and D(Nb) was measured at 920 and 1167 K. The Elf diffusion profiles were determined by SIMS and the Nb profiles by microtome sectioning and radio-tracer counting. The Hf data show a smooth, temperature-dependent behaviour through the monotectoid temperature, 875 K, and may be characterised by
D ≃ 10
−9 × exp(−1.4(eV/
kT)m
2/s.
D(Nb) tends to be lower than the corresponding values for
D(Hf). Overall, diffusion of Hf and Nb are characteristic of diffusion in bcc Zr. Surface hold-up (oxide film) at low temperatures was overcome by using ion-implanted Hf diffusion sources. The results are compared with earlier work and discussed in terms of diffusion mechanisms and the β-phase transformation of commercial Zr2.5Nb.</abstract><pub>Elsevier B.V</pub><doi>10.1016/0022-3115(96)00024-4</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0022-3115 |
| ispartof | Journal of nuclear materials, 1996-05, Vol.230 (1), p.36-40 |
| issn | 0022-3115 1873-4820 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_26123907 |
| source | Elsevier ScienceDirect Journals |
| title | Diffusion of Hf and Nb in Zr19%Nb |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-05T05%3A40%3A50IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Diffusion%20of%20Hf%20and%20Nb%20in%20Zr%EE%97%B819%25Nb&rft.jtitle=Journal%20of%20nuclear%20materials&rft.au=Zou,%20H.&rft.date=1996-05-01&rft.volume=230&rft.issue=1&rft.spage=36&rft.epage=40&rft.pages=36-40&rft.issn=0022-3115&rft.eissn=1873-4820&rft_id=info:doi/10.1016/0022-3115(96)00024-4&rft_dat=%3Cproquest_cross%3E26123907%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=26123907&rft_id=info:pmid/&rft_els_id=0022311596000244&rfr_iscdi=true |