Initial sintering kinetics of non-stoichiometric CeO2−x
•Initial sintering on CeO2 and CeO2−x was controlled by grain boundary diffusion.•Cation diffusion coefficients were obtained from initial sintering data.•Activation energies of cation diffusion were derived from initial sintering data.•Cation diffusion in CeO2 was caused by a vacancy mechanism. The...
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| Veröffentlicht in: | Materials science & engineering. B, Solid-state materials for advanced technology Solid-state materials for advanced technology, 2021-10, Vol.272, p.115369, Article 115369 |
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| container_title | Materials science & engineering. B, Solid-state materials for advanced technology |
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| creator | Watanabe, Masashi Seki, Takayuki |
| description | •Initial sintering on CeO2 and CeO2−x was controlled by grain boundary diffusion.•Cation diffusion coefficients were obtained from initial sintering data.•Activation energies of cation diffusion were derived from initial sintering data.•Cation diffusion in CeO2 was caused by a vacancy mechanism.
The effect of oxygen non-stoichiometry on the initial sintering behavior of CeO2 was investigated. It was found that the initial sintering of the stoichiometric and hypo-stoichiometric composition was controlled by the grain boundary diffusion. The activation energies of cation diffusion were derived from initial sintering data. Moreover, it is suggested that the cation diffusion was caused by a vacancy mechanism. |
| doi_str_mv | 10.1016/j.mseb.2021.115369 |
| format | Article |
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The effect of oxygen non-stoichiometry on the initial sintering behavior of CeO2 was investigated. It was found that the initial sintering of the stoichiometric and hypo-stoichiometric composition was controlled by the grain boundary diffusion. The activation energies of cation diffusion were derived from initial sintering data. Moreover, it is suggested that the cation diffusion was caused by a vacancy mechanism.</description><identifier>ISSN: 0921-5107</identifier><identifier>EISSN: 1873-4944</identifier><identifier>DOI: 10.1016/j.mseb.2021.115369</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Cations ; Cerium oxides ; Diffusion ; Diffusion coefficient ; Grain boundary diffusion ; Initial sintering ; Non-stoichiometry ; Sintering ; Stoichiometry</subject><ispartof>Materials science & engineering. B, Solid-state materials for advanced technology, 2021-10, Vol.272, p.115369, Article 115369</ispartof><rights>2021 Elsevier B.V.</rights><rights>Copyright Elsevier BV Oct 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c328t-36fd91bdedcc582625fdd02760a475c8f30d358acbca998e21c7eb1737166c1d3</citedby><cites>FETCH-LOGICAL-c328t-36fd91bdedcc582625fdd02760a475c8f30d358acbca998e21c7eb1737166c1d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.mseb.2021.115369$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Watanabe, Masashi</creatorcontrib><creatorcontrib>Seki, Takayuki</creatorcontrib><title>Initial sintering kinetics of non-stoichiometric CeO2−x</title><title>Materials science & engineering. B, Solid-state materials for advanced technology</title><description>•Initial sintering on CeO2 and CeO2−x was controlled by grain boundary diffusion.•Cation diffusion coefficients were obtained from initial sintering data.•Activation energies of cation diffusion were derived from initial sintering data.•Cation diffusion in CeO2 was caused by a vacancy mechanism.
The effect of oxygen non-stoichiometry on the initial sintering behavior of CeO2 was investigated. It was found that the initial sintering of the stoichiometric and hypo-stoichiometric composition was controlled by the grain boundary diffusion. The activation energies of cation diffusion were derived from initial sintering data. Moreover, it is suggested that the cation diffusion was caused by a vacancy mechanism.</description><subject>Cations</subject><subject>Cerium oxides</subject><subject>Diffusion</subject><subject>Diffusion coefficient</subject><subject>Grain boundary diffusion</subject><subject>Initial sintering</subject><subject>Non-stoichiometry</subject><subject>Sintering</subject><subject>Stoichiometry</subject><issn>0921-5107</issn><issn>1873-4944</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9kE1OwzAQRi0EEqVwAVaRWCd47NiJJTao4qdSJTawthJ7Ag5tXGwXwQ1Yc0ROQqqwZjWb730z8wg5B1oABXnZF5uIbcEogwJAcKkOyAzqiuelKstDMqOKQS6AVsfkJMaeUgqMsRlRy8El16yz6IaEwQ3P2asbMDkTM99lgx_ymLwzL85vMAVnsgU-sJ-v749TctQ164hnf3NOnm5vHhf3-erhbrm4XuWGszrlXHZWQWvRGiNqJpnorKWskrQpK2HqjlPLRd2Y1jRK1cjAVNhCxSuQ0oDlc3Ix9W6Df9thTLr3uzCMKzUT9fi9EEqOKTalTPAxBuz0NrhNEz41UL1XpHu9V6T3ivSkaISuJgjH-98dBh2Nw8GgdQFN0ta7__Bf5x9viA</recordid><startdate>202110</startdate><enddate>202110</enddate><creator>Watanabe, Masashi</creator><creator>Seki, Takayuki</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>202110</creationdate><title>Initial sintering kinetics of non-stoichiometric CeO2−x</title><author>Watanabe, Masashi ; Seki, Takayuki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-36fd91bdedcc582625fdd02760a475c8f30d358acbca998e21c7eb1737166c1d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Cations</topic><topic>Cerium oxides</topic><topic>Diffusion</topic><topic>Diffusion coefficient</topic><topic>Grain boundary diffusion</topic><topic>Initial sintering</topic><topic>Non-stoichiometry</topic><topic>Sintering</topic><topic>Stoichiometry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Watanabe, Masashi</creatorcontrib><creatorcontrib>Seki, Takayuki</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Materials science & engineering. B, Solid-state materials for advanced technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Watanabe, Masashi</au><au>Seki, Takayuki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Initial sintering kinetics of non-stoichiometric CeO2−x</atitle><jtitle>Materials science & engineering. B, Solid-state materials for advanced technology</jtitle><date>2021-10</date><risdate>2021</risdate><volume>272</volume><spage>115369</spage><pages>115369-</pages><artnum>115369</artnum><issn>0921-5107</issn><eissn>1873-4944</eissn><abstract>•Initial sintering on CeO2 and CeO2−x was controlled by grain boundary diffusion.•Cation diffusion coefficients were obtained from initial sintering data.•Activation energies of cation diffusion were derived from initial sintering data.•Cation diffusion in CeO2 was caused by a vacancy mechanism.
The effect of oxygen non-stoichiometry on the initial sintering behavior of CeO2 was investigated. It was found that the initial sintering of the stoichiometric and hypo-stoichiometric composition was controlled by the grain boundary diffusion. The activation energies of cation diffusion were derived from initial sintering data. Moreover, it is suggested that the cation diffusion was caused by a vacancy mechanism.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.mseb.2021.115369</doi></addata></record> |
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| subjects | Cations Cerium oxides Diffusion Diffusion coefficient Grain boundary diffusion Initial sintering Non-stoichiometry Sintering Stoichiometry |
| title | Initial sintering kinetics of non-stoichiometric CeO2−x |
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