{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1360004234632336768.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1093/jmicro/dfx028"}},{"identifier":{"@type":"URI","@value":"http://academic.oup.com/jmicro/article-pdf/66/6/388/22136391/dfx028.pdf"}},{"identifier":{"@type":"PMID","@value":"28992044"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Formation of metastable phases in Zr-ion-irradiated Al2O3 upon thermal annealing"}],"description":[{"notation":[{"@value":"Formation of metastable phases in Zr-ion-irradiated corundum alumina (Al2O3) upon thermal annealing was examined using transmission electron microscopy. A metastable cubic spinel phase was formed in the topmost layer of the as-irradiated microstructure. During thermal annealing at temperatures ranging from 1073 to 1273 K, this spinel layer grew in extent via an unusual corundum-to-spinel phase transformation. A normal spinel-to-corundum phase transformation was observed at post-irradiation annealing temperatures greater than 1473 K. In addition, ZrO2 nanocrystals embedded in α-Al2O3 were observed to form at these higher temperatures. High-resolution transmission electron microscopy observations and electron diffraction experiments revealed that the structure of the ZrO2 precipitates observed in this study are consistent with a high-pressure metastable orthorhombic phase of ZrO2 known as the Ortho-I phase."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380004234632336786","@type":"Researcher","foaf:name":[{"@value":"Naomasa 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Ishimaru"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004234632336783","@type":"Researcher","foaf:name":[{"@value":"Masakazu Tane"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004234632336782","@type":"Researcher","foaf:name":[{"@value":"Younes Sina"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004234632336771","@type":"Researcher","foaf:name":[{"@value":"Carl J McHargue"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004234632336788","@type":"Researcher","foaf:name":[{"@value":"Kurt E Sickafus"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004234632336899","@type":"Researcher","foaf:name":[{"@value":"Eduardo Alves"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00220744"},{"@type":"EISSN","@value":"14779986"}],"prism:publicationName":[{"@value":"Journal of Electron Microscopy"}],"dc:publisher":[{"@value":"Oxford University Press 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