Electron magnetic resonance investigation of gadolinium diffusion in zircon powders
The electron magnetic resonance (EMR) technique was used to investigate the diffusion of gadolinium in zircon (ZrSiO 4) powders. The EMR absorption intensity was measured for several annealing times and three different temperatures of isothermal annealing: 1273, 1323 and 1373 K. The activation energ...
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| Veröffentlicht in: | The Journal of physics and chemistry of solids 2011-11, Vol.72 (11), p.1390-1391 |
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| creator | de Biasi, R.S. Grillo, M.L.N. |
| description | The electron magnetic resonance (EMR) technique was used to investigate the diffusion of gadolinium in zircon (ZrSiO
4) powders. The EMR absorption intensity was measured for several annealing times and three different temperatures of isothermal annealing: 1273, 1323 and 1373
K. The activation energy for diffusion, calculated from the experimental data using a theoretical model based on the Fick equation, was found to be
E
A
=506±5
kJ
mol
−1. This value is close to the ones for the diffusion of Gd in UO
2 and CeO
2, but much larger than for the diffusion of gadolinium in a compound with the same crystal structure as zircon, YVO
4. This is attributed to a difference in the relative sizes of the ions involved in the diffusion process.
► EMR is an effective method to study solid state diffusion. ► Activation energy for diffusion of gadolinium in zirconium is 506±5
kJ
mol
−1. ► Different behavior of Gd
3+ in ZrSiO
4 and YVO
4 is attributed to the fact that Zr
4+ ions are smaller than Y
3+ ions. |
| doi_str_mv | 10.1016/j.jpcs.2011.08.014 |
| format | Article |
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4) powders. The EMR absorption intensity was measured for several annealing times and three different temperatures of isothermal annealing: 1273, 1323 and 1373
K. The activation energy for diffusion, calculated from the experimental data using a theoretical model based on the Fick equation, was found to be
E
A
=506±5
kJ
mol
−1. This value is close to the ones for the diffusion of Gd in UO
2 and CeO
2, but much larger than for the diffusion of gadolinium in a compound with the same crystal structure as zircon, YVO
4. This is attributed to a difference in the relative sizes of the ions involved in the diffusion process.
► EMR is an effective method to study solid state diffusion. ► Activation energy for diffusion of gadolinium in zirconium is 506±5
kJ
mol
−1. ► Different behavior of Gd
3+ in ZrSiO
4 and YVO
4 is attributed to the fact that Zr
4+ ions are smaller than Y
3+ ions.</description><identifier>ISSN: 0022-3697</identifier><identifier>EISSN: 1879-2553</identifier><identifier>DOI: 10.1016/j.jpcs.2011.08.014</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>A. Oxides ; Annealing ; Crystal structure ; D. Diffusion ; D. Electron magnetic resonance ; Diffusion ; Ficks equation ; Gadolinium ; Isothermal annealing ; Magnetic resonance ; Zircon</subject><ispartof>The Journal of physics and chemistry of solids, 2011-11, Vol.72 (11), p.1390-1391</ispartof><rights>2011 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c283t-9fab67e079b685f9af6e0fe65aa573a01a77c7d83c979122affbeae4501b31713</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jpcs.2011.08.014$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>de Biasi, R.S.</creatorcontrib><creatorcontrib>Grillo, M.L.N.</creatorcontrib><title>Electron magnetic resonance investigation of gadolinium diffusion in zircon powders</title><title>The Journal of physics and chemistry of solids</title><description>The electron magnetic resonance (EMR) technique was used to investigate the diffusion of gadolinium in zircon (ZrSiO
4) powders. The EMR absorption intensity was measured for several annealing times and three different temperatures of isothermal annealing: 1273, 1323 and 1373
K. The activation energy for diffusion, calculated from the experimental data using a theoretical model based on the Fick equation, was found to be
E
A
=506±5
kJ
mol
−1. This value is close to the ones for the diffusion of Gd in UO
2 and CeO
2, but much larger than for the diffusion of gadolinium in a compound with the same crystal structure as zircon, YVO
4. This is attributed to a difference in the relative sizes of the ions involved in the diffusion process.
► EMR is an effective method to study solid state diffusion. ► Activation energy for diffusion of gadolinium in zirconium is 506±5
kJ
mol
−1. ► Different behavior of Gd
3+ in ZrSiO
4 and YVO
4 is attributed to the fact that Zr
4+ ions are smaller than Y
3+ ions.</description><subject>A. Oxides</subject><subject>Annealing</subject><subject>Crystal structure</subject><subject>D. Diffusion</subject><subject>D. Electron magnetic resonance</subject><subject>Diffusion</subject><subject>Ficks equation</subject><subject>Gadolinium</subject><subject>Isothermal annealing</subject><subject>Magnetic resonance</subject><subject>Zircon</subject><issn>0022-3697</issn><issn>1879-2553</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9kE1PwzAMhiMEEuPjD3DqjVOLna5NI3FB0_iQJnEAzlGWOlOqrilJNwS_nkzjzMmW9T6W_TB2g1AgYH3XFd1oYsEBsYCmAJyfsBk2Qua8qspTNgPgPC9rKc7ZRYwdAFQoccbelj2ZKfgh2-rNQJMzWaDoBz0Yytywpzi5jZ5cCnibbXTreze43TZrnbW7eJi7IftxwaRu9F8thXjFzqzuI13_1Uv28bh8Xzznq9enl8XDKje8KadcWr2uBYGQ67qprNS2JrBUV1pXotSAWggj2qY0UkjkXFu7Jk3zCnBdosDykt0e947Bf-7SpWrroqG-1wP5XVSS1yXiXEJK8mPSBB9jIKvG4LY6fCsEdRCoOnUQqA4CFTQqCUzQ_RGi9MPeUVDROEpeWheSM9V69x_-Czkae4w</recordid><startdate>20111101</startdate><enddate>20111101</enddate><creator>de Biasi, R.S.</creator><creator>Grillo, M.L.N.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20111101</creationdate><title>Electron magnetic resonance investigation of gadolinium diffusion in zircon powders</title><author>de Biasi, R.S. ; Grillo, M.L.N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c283t-9fab67e079b685f9af6e0fe65aa573a01a77c7d83c979122affbeae4501b31713</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>A. Oxides</topic><topic>Annealing</topic><topic>Crystal structure</topic><topic>D. Diffusion</topic><topic>D. Electron magnetic resonance</topic><topic>Diffusion</topic><topic>Ficks equation</topic><topic>Gadolinium</topic><topic>Isothermal annealing</topic><topic>Magnetic resonance</topic><topic>Zircon</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>de Biasi, R.S.</creatorcontrib><creatorcontrib>Grillo, M.L.N.</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>The Journal of physics and chemistry of solids</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>de Biasi, R.S.</au><au>Grillo, M.L.N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Electron magnetic resonance investigation of gadolinium diffusion in zircon powders</atitle><jtitle>The Journal of physics and chemistry of solids</jtitle><date>2011-11-01</date><risdate>2011</risdate><volume>72</volume><issue>11</issue><spage>1390</spage><epage>1391</epage><pages>1390-1391</pages><issn>0022-3697</issn><eissn>1879-2553</eissn><abstract>The electron magnetic resonance (EMR) technique was used to investigate the diffusion of gadolinium in zircon (ZrSiO
4) powders. The EMR absorption intensity was measured for several annealing times and three different temperatures of isothermal annealing: 1273, 1323 and 1373
K. The activation energy for diffusion, calculated from the experimental data using a theoretical model based on the Fick equation, was found to be
E
A
=506±5
kJ
mol
−1. This value is close to the ones for the diffusion of Gd in UO
2 and CeO
2, but much larger than for the diffusion of gadolinium in a compound with the same crystal structure as zircon, YVO
4. This is attributed to a difference in the relative sizes of the ions involved in the diffusion process.
► EMR is an effective method to study solid state diffusion. ► Activation energy for diffusion of gadolinium in zirconium is 506±5
kJ
mol
−1. ► Different behavior of Gd
3+ in ZrSiO
4 and YVO
4 is attributed to the fact that Zr
4+ ions are smaller than Y
3+ ions.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.jpcs.2011.08.014</doi><tpages>2</tpages></addata></record> |
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| issn | 0022-3697 1879-2553 |
| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | A. Oxides Annealing Crystal structure D. Diffusion D. Electron magnetic resonance Diffusion Ficks equation Gadolinium Isothermal annealing Magnetic resonance Zircon |
| title | Electron magnetic resonance investigation of gadolinium diffusion in zircon powders |
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