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

Bachhav, Mukesh; Danoix, F.; Hannoyer, B.; Bassat, Jean‐Marc; Danoix, R.

doi:10.1016/j.ijms.2012.10.012

Cited by 76 publications

(64 citation statements)

References 35 publications

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“…However, the potential for D + and H 2 + interferences, plus the current inability to completely remove H ions from the analysis chamber, makes the significance of any H data from geological materials difficult to unravel. Similarly, molecular species 16 OH + and 17 OH + potentially overlap with 17 O + and 18 O + , respectively, while 32 O 2 2+ dimers overlapping with 16 O + at 16 Daltons have the potential to compromise stoichiometric calculations of O‐bearing minerals (Bachhav et al ). A similar problem may also arise in the analysis of sulfur, though a recent study, modelling the deconvolution of S 2 peaks to eliminate the interference problem, appears promising (Gopon et al ).…”

Section: Geoscience Applicationsmentioning

confidence: 99%

Atom Probe Tomography: Development and Application to the Geosciences

Reddy

Saxey

Rickard

et al. 2020

Geostandard Geoanalytic Res

100

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Atom probe tomography (APT) is an analytical technique that provides quantitative three‐dimensional elemental and isotopic analyses at sub‐nanometre resolution across the whole periodic table. Although developed and mostly used in the materials science and semiconductor fields, recent years have seen increasing development and application in the geoscience and planetary science disciplines. Atom probe studies demonstrate compositional complexity at the nanoscale and provide fundamental new insights into the atom‐scale mechanisms taking place in minerals over geological time. Here, we provide an overview of APT, including the historical development and technical aspects of the instrumentation, and the fundamentals of data acquisition, data processing and data reconstruction. We also review previous studies and highlight the potential future applications of nanoscale geochemical studies of natural materials.

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Section: Geoscience Applicationsmentioning

confidence: 99%

Atom Probe Tomography: Development and Application to the Geosciences

Reddy

Saxey

Rickard

et al. 2020

Geostandard Geoanalytic Res

100

View full text Add to dashboard Cite

show abstract

“…There is a deficit in O measured within the chromite. A "loss" of oxygen during APT evaporation has previously been observed, documented and tentatively explained [6,7,10,19]. For example, around 3 at.% O, a deficit was observed in the case of a-Fe 2 O 3 [7].…”

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confidence: 68%

“…In the last decade, local electrode atom probe (LEAP) has also been applied to study oxide layers. For example, metallic oxide phases, such as wustite [6], hematite [7], chromia [8], as well as surface oxide layers in stainless steels or nickel-based alloys [9][10][11], have been characterized by using laser-pulsed LEAP. Here we use LEAP to reveal the atomic-scale structure of intergranular oxides that have formed in a commercial ASS (253 MA) used as a receiver in a CSP plant.…”

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confidence: 99%

Atom probe study of chromium oxide spinels formed during intergranular corrosion

et al. 2015

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“…Improvement in ultrafast laser assisted field evaporation technology [3,4], allows us to analyse materials with low conductivity [5] as well as have a good 3D atom probe reconstruction for high band gap materials. Some examples include materials like Al 2 O 3 [6], HfO 2 [7], Fe 2 O 3 [8], CeO 2 [9] and even MgO, by APT [10][11][12][13][14]. A more recent APT study on wide bandgap semiconductors and nanostructures has been recently carried out by Lorenzo et al [15].…”

Section: Introductionmentioning

confidence: 99%