Interactive Image-Spectrum EELS: Application to Elemental Mapping of Lubricant Colloids

Martin, Jean‐Michel; Lavergne, Jean-Louis; Vacher, Béatrice; Inoue, Kyioshi

doi:10.1051/mmm:1995107

Cited by 14 publications

(3 citation statements)

References 9 publications

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“…Images are recorded from electrons of subsequent energy loss ranges. In this mode, each image contains the full image information; however, this occurs at the expense of lower energy resolution in contrast to that of the STEM approach (80)(81)(82)(83)(84)(85)(86)(87)(88)(89). Post-acquisition specimen drift compensation is SIGLE possible in this case, although it is complicated if strong contrast variations are present in the images.…”

Section: Eftem Image Spectroscopymentioning

confidence: 99%

Analytical Transmission Electron Microscopy

Sigle

2005

Annu. Rev. Mater. Res.

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Chemical analysis at high spatial resolution is the domain of analytical transmission electron microscopy. Owing to rapid instrumental developments during the past decade, electron energy-loss spectroscopy offers now a spatial resolution close to 0.1 nm and an energy resolution close to 0.1 eV. This development has been accompanied by the introduction of numerous new techniques and methods for data acquisition and analysis, which are outlined in the present article. Recent results for a wide range of material systems are addressed. These comprise first-principles calculations, which have contributed to enormous progress in the calculation of near-edge fine structures, and fingerprinting methods, which are still important for the interpretation of experimental data.

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Section: Eftem Image Spectroscopymentioning

confidence: 99%

Analytical Transmission Electron Microscopy

Sigle

2005

Annu. Rev. Mater. Res.

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“…A different approach to data acquisition is proposed; this is a synthesis of EELS and ESI and can thus be called electron energy loss spectroscopic imaging (Image-EELS) (Körtje. 1994;Leapman & Hunt, 1995;Martin et al, 1995). This method provides a high spatial resolution together with the precision of an EELS spectrum concerning the definition and subtraction of background curve.…”

Section: Introductionmentioning

confidence: 99%

“…It consists of acquiring as a first step, a series of images over a range of energy loss at fixed energy intervals (about the value of energy loss for the element in question), and subsequently extracting the useful information by reading the grey value of a given area of the constituent to be analysed on all images, over the whole range of energy-loss acquired. This method can be used for the detection of low concentrations of elements in a section, using the EFTEM system (Körtje, 1994;Martin et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

**Image‐EELS for in situ estimation of the phosphorus content of RNP granules**

Sani-Dadras

Vázquez‐Nin

Echeverría

et al. 1996

Journal of Microscopy

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Electron energy-loss spectroscopic imaging is performed on ultrathin sections, in order to approach the in-situ distribution of individual elements in the cellular constituents. In a previous ultrastructural study of salivary gland cells of Chironomus thummi and Ch. tentans by means of electron spectroscopic imaging and cytochemistry, we have described a new type of phosphorus-rich small granular ribonucleoprotein (RNP) component in the nucleoplasm of these cells; an attempt is made in the present work to estimate the phosphorus content of this component by the above mentioned method, using ribosomes as internal standard.Results show that these RNP granules contain, on average 3600 phosphorus atoms per granule. Another nuclear constituent also studied, the Balbiani ring granule, contains, on average, 43 000 phosphorus atoms per granule. Fig. 5. Distribution patterns regarding P content of ribosomes, Balbiani ring granules and small RNP granules. 220 S. ABOLHASSANI-DADRAS ET AL.

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Friction‐induced two‐dimensional solid films from lubricant additives

Martin

Grossiord

Varlot

et al. 2003

Lubrication Science

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Tribochemical interactions between some lubricant additives, namely zinc dithiophosphate (ZnDTP), an antiwear additive, molybdenum dithiocarbamate (MoDTC), a friction modifier, and overbased calcium borate (OCaB) detergent, have been investigated. The nature of the tribofilms formed was studied by combining high‐resolution transmission electron microscopy of wear fragments and inside wear scars with micro‐spot X‐ray photoelectron spectroscopy at the same location of the wear track (‘dual’ analysis). The OCaB/ZnDTP/MoDTC ternary system provides both a low wear rate and ultralow friction, while adding detergent and anti‐corrosion properties to the formulation. The analytical data indicate that such a synergistic effect can be attributed to an outstanding feature of the tribofilm nanostructure: it is composed of perfectly oriented MoS2 single sheets embedded in a single‐phase calcium and zinc borophosphate glass. Compared to phosphate alone, MoS2 sheets are oriented by the borophosphate phase. This could be related to a template effect of friction‐aligned planar molecules of the glassy borate polymer.

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Interactive Image-Spectrum EELS: Application to Elemental Mapping of Lubricant Colloids

Cited by 14 publications

References 9 publications

Analytical Transmission Electron Microscopy

Analytical Transmission Electron Microscopy

**Image‐EELS for in situ estimation of the phosphorus content of RNP granules**

Friction‐induced two‐dimensional solid films from lubricant additives

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