{"@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/1361137045800179840.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1126/science.1066932"}},{"identifier":{"@type":"URI","@value":"https://www.science.org/doi/pdf/10.1126/science.1066932"}}],"dc:title":[{"@value":"Iron-Silicon Alloy in Earth's Core?"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>We have investigated the phase relations in the iron-rich portion of the iron-silicon (Fe-Si) alloys at high pressures and temperatures. Our study indicates that Si alloyed with Fe can stabilize the body-centered cubic (bcc) phase up to at least 84 gigapascals (compared to ∼10 gigapascals for pure Fe) and 2400 kelvin. Earth's inner core may be composed of hexagonal close-packed (hcp) Fe with up to 4 weight percent Si, but it is also conceivable that the inner core could be a mixture of a Si-rich bcc phase and a Si-poor hcp phase.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381137045800179970","@type":"Researcher","foaf:name":[{"@value":"Jung-Fu Lin"}],"jpcoar:affiliationName":[{"@value":"Department of the Geophysical Sciences,"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045800179968","@type":"Researcher","foaf:name":[{"@value":"Dion L. Heinz"}],"jpcoar:affiliationName":[{"@value":"Department of the Geophysical Sciences,"},{"@value":"James Franck Institute,"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045800179969","@type":"Researcher","foaf:name":[{"@value":"Andrew J. Campbell"}],"jpcoar:affiliationName":[{"@value":"Department of the Geophysical Sciences,"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045800179971","@type":"Researcher","foaf:name":[{"@value":"James M. Devine"}],"jpcoar:affiliationName":[{"@value":"Department of the Geophysical Sciences,"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045800179972","@type":"Researcher","foaf:name":[{"@value":"Guoyin Shen"}],"jpcoar:affiliationName":[{"@value":"Consortium for Advanced Radiation Sources, University of Chicago, Chicago, IL 60637, USA."}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00368075"},{"@type":"EISSN","@value":"10959203"}],"prism:publicationName":[{"@value":"Science"}],"dc:publisher":[{"@value":"American Association for the Advancement of Science (AAAS)"}],"prism:publicationDate":"2002-01-11","prism:volume":"295","prism:number":"5553","prism:startingPage":"313","prism:endingPage":"315"},"reviewed":"false","url":[{"@id":"https://www.science.org/doi/pdf/10.1126/science.1066932"}],"createdAt":"2002-07-27","modifiedAt":"2024-01-09","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050006507967492352","@type":"Article","resourceType":"学術雑誌論文(journal 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