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Investigation of O-18 enriched hematite (a-Fe2O3) by laser assisted atom probe tomography

hal.structure.identifierGroupe de physique des matériaux [GPM]
dc.contributor.authorBACHLAV, Mukesh
hal.structure.identifierGroupe de physique des matériaux [GPM]
dc.contributor.authorDANOIX, Frederic
hal.structure.identifierGroupe de physique des matériaux [GPM]
dc.contributor.authorHANNOYER, Béatrice
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBASSAT, Jean-Marc.
hal.structure.identifierGroupe de physique des matériaux [GPM]
dc.contributor.authorDANOIX, Raphaële
dc.date.issued2013
dc.identifier.issn1387-3806
dc.description.abstractEnQuantitative composition measurements of metal-oxides by atom probe tomography (APT) face the problem of the nature of the oxygen peak at 16 Da. Due to a possible overlap between singly charged monomer (O+) and doubly charged dimer (O22+), the contribution of this peak to the total amount of oxygen in the analyzed samples is still matter of debate. In order to study this issue, laser assisted APT was used to analyze hematite (α-Fe2O3) samples containing large amounts of oxygen 18. Peak identification reveals that only singly charged monomers (O+) are detected, and that oxygen in detected water molecules does not originate from the oxide samples. With this information, composition of hematite measured by APT is found to be close, but not equal to the expected stoichiometry.
dc.language.isoen
dc.publisherElsevier
dc.subject.enLaser assisted atom probe tomography
dc.subject.enMass spectrometry
dc.subject.enIron oxides
dc.subject.enIsotopic measurements
dc.title.enInvestigation of O-18 enriched hematite (a-Fe2O3) by laser assisted atom probe tomography
dc.typeArticle de revue
dc.identifier.doi10.1016/j.ijms.2012.10.012
dc.subject.halChimie/Matériaux
bordeaux.journalInternational Journal of Mass Spectrometry
bordeaux.page57-60
bordeaux.volume335
bordeaux.peerReviewedoui
hal.identifierhal-00785253
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00785253v1
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