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Analyse Chimique Par Ablation Laser Et Caracterisation Du Plasma Induit Par Laser Par Shadowgraphy
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Book Synopsis Analyse Chimique Par Ablation Laser Et Caractérisation Du Plasma Induit Par Laser Par Shadowgraphy by : Jean-François Gravel
Download or read book Analyse Chimique Par Ablation Laser Et Caractérisation Du Plasma Induit Par Laser Par Shadowgraphy written by Jean-François Gravel and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analyse chimique par ablation laser et caractérisation du plasma induit par laser par shadowgraphy by : Jean-François Gravel (Chercheur)
Download or read book Analyse chimique par ablation laser et caractérisation du plasma induit par laser par shadowgraphy written by Jean-François Gravel (Chercheur) and published by . This book was released on 2009 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette thèse porte sur l'utilisation et la caractérisation de l' ablation laser et du plasma induit par laser dans un contexte d'analyse chimique. Différents efforts d' optimisation des techniques d' ablation laser couplée à la spectrométrie d' ionisation assistée par laser (LALEI) et de spectrométrie de plasma induit par laser (LIBS) ont mené à l'obtention d' excellents résultats analytiques pour des échantillons poudreux. Divers aspects importants en analyse, comme la possibilité d' utiliser des étalons solides à concentration ajustable, l'importance de l'homogénéité dans la distribution des analytes, l'importance de disposer d' étalons dont la matrice est similaire à celle des échantillons ou d'être en mesure de corriger les signaux obtenus avec des matrices différentes et l'influence de l'environnement gazeux sur la dynamique d'expansion du plasma et sur la rapidité de perçage d'une cible, ont été étudiés. Grâce entre autre à la technique de shadowgraphy (qui a aussi servi à évaluer l' influence de l'environnement gazeux), l'éjection de particules a été observée lors des premières microsecondes suivant l'ablation de cibles poudreuses préparées· sous formes de pastilles et a permis de comparer trois types d'étalons solides préparés dans le laboratoire à partir de sol-gels.
Book Synopsis ETUDE ET CARACTERISATION DU COUPLAGE ABLATION LASER-PLASMA H.F. (I.C.P.) by : Frédéric Chartier
Download or read book ETUDE ET CARACTERISATION DU COUPLAGE ABLATION LASER-PLASMA H.F. (I.C.P.) written by Frédéric Chartier and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: L'ANALYSE DIRECTE D'ELEMENTS DANS LES SOLIDES, EVITANT LA MISE EN SOLUTION, EST UNE NECESSITE EN SPECTROMETRIE D'EMISSION ATOMIQUE (AES). L'ABLATION LASER PERMET LA PRODUCTION DE PARTICULES QUI PEUVENT ETRE ATOMISEES, EXCITEES ET IONISEES DANS UNE SOURCE SECONDAIRE TELLE QU'UN PLASMA INDUIT PAR HAUTE FREQUENCE (I.C.P.). LE COUPLAGE ABLATION LASER/I.C.P. CONSTITUE LE THEME DE NOTRE ETUDE. L'IMPORTANCE DES CARACTERISTIQUES DU LASER TELLES QUE LE MODE DE FONCTIONNEMENT, LA DUREE DE L'IMPULSION, LA FORME DU FAISCEAU ET LA LONGUEUR D'ONDE EST MISE EN EVIDENCE. LES PERFORMANCES DE L'ENSEMBLE PORTE-EBULLITION/CELLULE D'ABLATION ET LE RENDEMENT DE TRANSPORT SONT EVALUES. LA SELECTION D'UN LASER ADAPTE AUX NECESSITES DE L'ABLATION EST EFFECTUEE PAR L'INTERMEDIAIRE D'UNE ETUDE COMPARATIVE DE DIFFERENTS LASERS ET DE LEURS PARAMETRES (TAUX DE REPETITION, ENERGIE), SUR: L'EFFICACITE D'ABLATION, LA TAILLE ET LA QUANTITE DES AEROSOLS PRODUITS, LES PERFORMANCES ANALYTIQUES EN I.C.P./A.E.S. DIFFERENTES NATURES D'ECHANTILLONS SONT TESTEES: METAUX, VERRES... LES RESULTATS MONTRENT QUE LE LASER A EXCIMERES EST PLUS ADAPTE AU COUPLAGE ABLATION LASER/I.C.P. PAR RAPPORT AU LASER ND:YAG
Book Synopsis The Science and Engineering of Thermal Spray Coatings by : Lech Pawlowski
Download or read book The Science and Engineering of Thermal Spray Coatings written by Lech Pawlowski and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: This extensively updated and revised version builds on the success of the first edition featuring new discoveries in powder technology, spraying techniques, new coatings applications and testing techniques for coatings -- Many new spray techniques are considered that did not exist when the first edition was published! The book begins with coverage of materials used, pre-spray treatment, and the techniques used. It then leads into the physics and chemistry of spraying and discusses coatings build-up. Characterization methods and the properties of the applied coatings are presented, and the book concludes with a lengthy chapters on thermal spray applications covers such areas as the aeronautics and space, automobiles, ceramics, chemicals, civil engineering, decorative coatings, electronics, energy generation and transport, iron and steel, medicine, mining and the nuclear industries.
Download or read book Laser Ablation written by Tatiana Itina and published by BoD – Books on Demand. This book was released on 2017-12-21 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shortly after the demonstration of the first laser, the most intensely studied theoretical topics dealt with laser-matter interactions. Many experiments were undertaken to clarify the major ablation mechanisms. At the same time, numerous theoretical studies, both analytical and numerical, were proposed to describe these interactions. These studies paved the ways toward the development of numerous laser applications, ranging from laser micro- and nanomachining to material analysis, nanoparticle and nanostructure formation, thin-film deposition, etc. Recently, more and more promising novel fields of laser applications have appeared, including biomedicine, catalysis, photovoltaic cells, etc. This book intends to provide the reader with a comprehensive overview of the current state of the art in laser ablation, from its fundamental mechanisms to novel applications.
Book Synopsis Spray Drying Handbook by : Keith Masters
Download or read book Spray Drying Handbook written by Keith Masters and published by . This book was released on 1985 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This edition reflects the changes which have occurred in spray drying technology and plant design since the publication of the fourth edition. The author argues that spray drying will remain the most important dehydration technique available to convert pumpable fluid feedstocks into powders. Topics covered include the drying principles, a survey of auxiliary equipment and the applications of spray drying in industry. There is a new chpater on spray drying in environmental control and there is a list of spray drying patents issued within the last five years. This edition also contains more data and tables that cover operation and design information for a wide range of products."--Provided by the publisher.
