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[en] A part of proceedings of the eight international vacuum congress, on the nuclear energy and research, is included into thirty selected communications
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1980; 587 p; Societe Francaise du Vide; Paris, France; 8. International vacuum congress; Cannes, France; 22 - 26 Sep 1980; Suppl. Vide. Couches Minces no. 201.
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AbstractAbstract
[en] XPS and AES are very similar with regard to physical laws except ionisation process. Up to now, the main obstacle to a common approach was instrumentation: apparatus, mainly analysers, were too different. New systems provide both kind of spectra. The aim of this paper is to help users in the duality and complementarity of these techniques
[fr]
La spectroscopie d'electrons et la spectroscopie Auger sont tres proches en ce qui concerne les lois physiques, sauf le procede d'ionisation. Jusqu'a maintenant le principal obstacle a une approche commune etait l'instrumentation: les appareils, surtout l'analyseur, etaient trop differents. Les nouveaux systemes donnent les deux spectres. Le but de cet article est d'aider les utilisateurs dans la dualite et la complementarite de ces techniquesOriginal Title
Spectroscopies d'electrons X.P.S., A.E.S
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Langeron, J.P.
Microanalysis and scanning electron microscopy. Summer school, Saint-Martin-d'Heres, 11-16 Sep 1978
Microanalysis and scanning electron microscopy. Summer school, Saint-Martin-d'Heres, 11-16 Sep 1978
AbstractAbstract
[en] The primary electron bombardment induces the emission of back scattered or secondary electrons. Their intensity is high against that corresponding to Auger electrons. This is why Auger spectrometry extended as from 1967 only, when Harris finalized a system of energy modulation of the primary electron beam making it possible to obtain on the derived curve dN(E)/dE = f(E) a satisfactory signal to background ratio for a primary electron beam intensity in the vicinity of a microampere. It is the value of this signal to background ratio that limits the sensitivity of the Auger spectrometric system: 0.1 to 1% according to the elements
[fr]
Le bombardement electronique primaire provoque egalement l'emission d'electrons retrodiffuses ou secondaires; leur intensite est elevee devant celle correspondant aux electrons Auger. C'est pourquoi la spectrometrie Auger ne s'est developpee qu'a partir de 1967 lorsque Harris a mis au point un systeme de modulation en energie du faisceau d'electrons primaires permettant d'obtenir sur la courbe derivee dN(E)/dE = f(E) un rapport signal sur bruit satisfaisant pour une intensite du faisceau d'electrons primaires voisine du microampere. C'est la valeur de ce rapport signal sur bruit qui limite la sensibilite de la spectrometrie Auger: 0,1 a 1% selon les elementsOriginal Title
Utilisation des electrons Auger en microanalyse
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Maurice, F.; Meny, L.; Tixier, R. (comps.); p. 503-506; 1978; p. 503-506; Editions de Physique; Orsay, France; Summer school on microanalysis and scanning electron microscopy; Saint-Martin-d'Heres, France; 11 - 16 Sep 1978
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AbstractAbstract
[en] Auger electron spectroscopy is a powerfull method for identification of elements who are in the first layers near the surface. Quantitative approach needs the finest knowledge of every physical parameters involved in the expression of Auger current: interactions of primary electron beam with target, backscattering, ionisation cross section, Auger emission, and escape depth. Depth profile analysis by combination of Auger electron spectroscopy with ion beam sputtering brings its own incertainties but, in this field also, much progress has been achieved recently
[fr]
La spectroscopie d'electrons Auger est tres utile pour identifier les elements qui se trouvent dans les premieres couches pres de la surface. L'approche quantitative necessite la connaissance des parametres physiques necessaires a l'expression du courant Auger: interaction du faisceau d'electrons primaires avec la cible, retrodiffusion, sections efficaces d'ionisation, emission Auger, et profondeur d'echappement. L'analyse de profil de concentration en combinant la spectroscopie d'electrons Auger avec la pulverisation par faisceau d'ions apporte ses incertitudes, mais dans ce domaine, de gros progres ont ete realises recemmentOriginal Title
Approche analytique de la spectrometrie Auger
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19. Annual meeting of the French Electron Microscopy Society; Lyon-Villeurbanne, France; 21 - 23 May 1979
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Journal Article
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Journal de Microscopie et de Spectroscopie Electroniques; ISSN 0395-9279;
; v. 4(4); p. 431-438

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AbstractAbstract
[en] Electrostatic effects are usually observed at the interface of thin aluminium films deposited on polypropylene substrates during depth profiling analysis by Auger electron spectroscopy (AES). Charging build up is characterized by energy shifts of Auger spectra towards higher kinetic energies. These insulating layers (10 to 20 nm) are partially or totally eliminated when the polymer is, prior to the metallization process, submitted either to low pressure (argon, nitrogen or ammoniac) plasma or to inert ion etching treatments. A lowering of oxygen and alumina contents at interfaces and an improved adhesion behavior were simultaneously noted. With Al deposits performed in UHV conditions onto a sputter cleaned substrate: a graphitic-like layer was probably created which ensures the complete removal of the electric charges during analysis at the Al/'polymer' interface, where a direct chemical bonding Al-C was displayed by AES. (Author). 8 refs., 2 figs
Original Title
Effets electrostatiques aux interfaces et problemes d'adherence
Source
Societe Francaise du Vide, 75 - Paris (France); 451 p; 1992; p. 302-304; Societe Francaise du Vide; Paris (France); Interdisciplinary Conference on Dielectrics: properties, characterization, applications; Conference Interdisciplinaire sur les Dielectriques: proprietes, caracterisation, applications; Antibes (France); 23-27 Mar 1992
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AbstractAbstract
No abstract available
Original Title
Sur la decarburation du molybdene par recuit sous pression reduite d'oxygene
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Progress Report
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Compt. Rend., Ser. C; v. 272(12); p. 1109-1111
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AbstractAbstract
[en] The kinetics of decarburisation of molybdenum and TZM have been studied by quadrupole mass spectrometry over the temperature range 1260-20100 C. Flat and cylindrical samples were heated under a few 10-6 Torr 02. The outgassing flow of the carbon monoxide product as a function of time is controlled by the diffusion of carbon. Alloying with titanium and zirconium (TZM alloys) reduces the diffusion of carbon but increases its solubility below 17000C. The decarburisation is accompanied by internal oxidation which does not appear below 20000C in molybdenum. Anomalies in the diffusion of carbon can be attributed to the carbon becoming dissolved in the precipitated titanium oxide. (author)
Original Title
Diffusion et solubilite du carbone dans le molybdene et les TZM
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9. Plansee seminar - 'De re metallica'; Reutte, Austria; 23 - 26 May 1977
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Journal Article
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Conference; Numerical Data
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High Temperatures - High Pressures; ISSN 0018-1544;
; v. 10(2); p. 165-177

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AbstractAbstract
[en] The decarburization kinetics of molybdenum with different carbon contents has been studied by ultra-high vacuum techniques (quadrupole mass-spectrometry) over a wide range of temperatures (1240-1920 deg C). Plane sheets and cylindrical samples are heated under some 10-6 torr O2. The outgassing flow of CO produced as a function of time is controlled by C diffusion. The reactions kinetics allows to calculate the diffusion constant and the solubility of carbon in molybdenum for different temperatures
[fr]
La cinetique de decarburation de Mo a differentes teneurs en carbone a ete etudiee par les techniques du vide (spectrographie de masse quadrupolaire) dans une large gamme de temperatures (1240-1920 deg C). On a chauffe des feuilles planes et des echantillons cylindriques sous une pression de 10-6 torr d'oxygene. On peut controler le degazage du CO forme en fonction du temps par la diffusion du carbone. La cinetique de reaction permet de calculer les constantes de diffusion et la solubilite du carbone dans Mo a differentes temperaturesOriginal Title
Decarburation du molybdene par recuit sous faible pression d'oxygene
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Societe Francaise du Vide, 75 - Paris; p. 137-140; nd; Societe Francaise du Vide; Paris, France; European conference on the present trends of vacuum metallurgy; Lille, France; 07 Oct 1975
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AbstractAbstract
No abstract available
Original Title
De l'influence de la teneur en carbone et en oxygene sur le facies de rupture du molybdene polycristallin
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Journal Article
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Progress Report
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Compt. Rend., Ser. C; v. 272(13); p. 1204-1207
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AbstractAbstract
[en] Auger first experiences in 1923 and thesis in 1926 on photoelectrons with a Wilson chamber are shortly presented. The two related techniques, Siegbahn XPS (X-ray Photoelectron Analysis) and Auger AES (Auger Electron Spectroscopy), are compared for surfaces analysis with advantages and disadvantages. (A.B.). 13 refs., 3 figs
Original Title
L'effet AUGER: decouverte et applications
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