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Etude Des Transferts Denergie Lors Dinteractions Plasma Surface
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Book Synopsis Etude des transferts d'énergie lors d'interactions plasma/surface by : Pierre-Antoine Cormier
Download or read book Etude des transferts d'énergie lors d'interactions plasma/surface written by Pierre-Antoine Cormier and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: La connaissance de l'énergie transférée aux surfaces en contact avec un plasma basse pression est un paramètre clé pour le contrôle des procédés plasmas basse pression. Sa détermination permet une meilleure compréhension des mécanismes mis en jeu lors du dépôt ou la gravure de couches couches minces. Elle dépend des espèces du plasma (les ions, les électrons et les neutres) ainsi que de nombreux mécanismes physiques ou chimiques (réaction, condensation, émission radiative.). Elle peut être déterminée par la simulation du transport des particules dans le plasma, par des estimations de chaque contribution à partir des paramètres plasma ou tout simplement mesurée. Les études dédiées à sa mesure sont principalement basées sur l'utilisation d'une sonde calorimétrique, dont le principe sur l'interpolation du thermogramme mesuré. Ce type de méthode induit un long temps de mesure (2 min) et est source d'incertitudes. Un outil de diagnostic pour la mesure directe de l'énergie transférée a été développé au GREMI. Il est basé sur l'adaptation d'un capteur à thermopile initialement dédié à des mesures à pression atmosphérique. Cette thèse a donc été dédié à son développement et son utilisation pour l'étude de différents procédés plasmas basse pression : un propulseur spatial à effet Hall, un plasma poudreux, mais surtout de décharges magnétron. Des mesures ont été réalisées lors du dépôt de titane, d'aluminium, de TiO2 et de Al2O3. Les influences de la configuration magnétique de la cathode, du type de décharge, de l'échauffement des cibles, sur les conditions énergétiques à la surface du film en croissance ont été étudiées.
Book Synopsis CONTRIBUTION A LA MODELISATION DES ECOULEMENTS PLASMAS BASSE PRESSION D'AZOTE ET D'OXYGENE ET DU TRANSFERT D'ENERGIE PLASMA-SURFACE. APPLICATION A L'ETUDE CINETIQUE DES RECOMBINAISONS CATALYTIQUES RESPONSABLES DE L'ECHAUFFEMENT D'UNE SURFACE PAR UN PLASMA BASSE PRESSION D'AZOTE ET D'OXYGENE by : KHALED.. HASSOUNI
Download or read book CONTRIBUTION A LA MODELISATION DES ECOULEMENTS PLASMAS BASSE PRESSION D'AZOTE ET D'OXYGENE ET DU TRANSFERT D'ENERGIE PLASMA-SURFACE. APPLICATION A L'ETUDE CINETIQUE DES RECOMBINAISONS CATALYTIQUES RESPONSABLES DE L'ECHAUFFEMENT D'UNE SURFACE PAR UN PLASMA BASSE PRESSION D'AZOTE ET D'OXYGENE written by KHALED.. HASSOUNI and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: DANS CE TRAVAIL NOUS AVONS PRESENTE UNE APPROCHE RELATIVE A LA MODELISATION DU TRANSFERT D'ENERGIE ENTRE DES PLASMAS BASSE PRESSION D'AZOTE OU D'OXYGENE ET UNE SURFACE METALLIQUE. LE MODELE PROPOSE EST APPLICABLE DANS LE CAS DE PLASMAS BASSE PRESSION DONT LES CONDITIONS DE DECHARGES SONT TELLES QUE LA PRESSION EST COMPRISE ENTRE 1 ET 10 MBAR, LA TEMPERATURE CINETIQUE DES ELECTRONS INFERIEURE A 21000 K, LA TEMPERATURE CINETIQUE DES LOURDS COMPRISE ENTRE 300 K ET 1200 K, ET LE TAUX D'IONISATION INFERIEUR A 10##4. LE MODELE PROPOSE S'APPUIE SUR UNE DESCRIPTION DE L'ECOULEMENT PLASMA D'UN POINT DE VUE THERMOCHIMIQUE ET AERODYNAMIQUE D'UNE PART ET SUR UNE DESCRIPTION DES INTERACTIONS ET DU TRANSFERT D'ENERGIE ENTRE LES ESPECES DU PLASMA ET UNE SURFACE D'AUTRE PART. LA PREMIERE PHASE DE CE TRAVAIL A CONSISTE A EFFECTUER UNE ETUDE DE LA CINETIQUE CHIMIQUE CARACTERISANT LES ECOULEMENTS PLASMAS ETUDIES. NOUS AVONS ENSUITE EFFECTUE UNE ETUDE DES INTERACTIONS PLASMA-SURFACE QUI NOUS A PERMIS DE QUANTIFIER LES TRANSFERTS D'ENERGIE ENTRE LES ESPECES DU PLASMA ET LA SURFACE. LA RESOLUTION DES EQUATIONS DE CONSERVATION ASSORTIES DES CONDITIONS AUX LIMITES DEFINIES PAR LE MODELE D'INTERACTION PLASMA-SURFACE, NOUS A PERMIS DE SIMULER UN REACTEUR TUBULAIRE PLASMA BASSE PRESSION D'AZOTE ET D'OXYGENE CONTENANT UN ECHANTILLON DE TUNGSTENE EN POINT D'ARRET. UNE VALIDATION DU MODELE A ETE EFFECTUEE DANS LE CAS D'UN PLASMA D'AZOTE A PARTIR D'UNE MESURE DES TEMPERATURES PAR SPECTROSCOPIE D'EMISSION. LES RESULTATS OBTENUS ONT MONTRE L'IMPORTANCE DU POIDS DE LA RECOMBINAISON CATALYTIQUE DES ATOMES DANS LA CINETIQUE D'ECHAUFFEMENT DE LA SURFACE. CELA NOUS A AMENE A METTRE EN UVRE UNE METHODE EXPERIMENTALE DE DETERMINATION DES COEFFICIENTS DE RECOMBINAISON D'ATOMES SUR DES SURFACES PEU CATALYTIQUES. CETTE METHODE A ETE APPLIQUEE AU CAS DU SYSTEME O/SIO#2
Download or read book INIS Atomindex written by and published by . This book was released on 1986 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1994 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Introduction to Plasma Dynamics by : A. I. Morozov
Download or read book Introduction to Plasma Dynamics written by A. I. Morozov and published by CRC Press. This book was released on 2012-12-06 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the twenty-first century progresses, plasma technology will play an increasing role in our lives, providing new sources of energy, ion-plasma processing of materials, wave electromagnetic radiation sources, space plasma thrusters, and more. Studies of the plasma state of matter not only accelerate technological developments but also improve the
Book Synopsis The Interaction of Ocean Waves and Wind by : Peter Janssen
Download or read book The Interaction of Ocean Waves and Wind written by Peter Janssen and published by Cambridge University Press. This book was released on 2004-10-28 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was published in 2004. The Interaction of Ocean Waves and Wind describes in detail the two-way interaction between wind and ocean waves and shows how ocean waves affect weather forecasting on timescales of 5 to 90 days. Winds generate ocean waves, but at the same time airflow is modified due to the loss of energy and momentum to the waves; thus, momentum loss from the atmosphere to the ocean depends on the state of the waves. This volume discusses ocean wave evolution according to the energy balance equation. An extensive overview of nonlinear transfer is given, and as a by-product the role of four-wave interactions in the generation of extreme events, such as freak waves, is discussed. Effects on ocean circulation are described. Coupled ocean-wave, atmosphere modelling gives improved weather and wave forecasts. This volume will interest ocean wave modellers, physicists and applied mathematicians, and engineers interested in shipping and coastal protection.
Download or read book Physics Briefs written by and published by . This book was released on 1987 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis New Views of the Moon by : Bradley L. Jolliff
Download or read book New Views of the Moon written by Bradley L. Jolliff and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 60 of Reviews in Mineralogy and Geochemistry assesses the current state of knowledge of lunar geoscience, given the data sets provided by missions of the 1990's, and lists remaining key questions as well as new ones for future exploration to address. It documents how a planet or moon other than the world on which we live can be studied and understood in light of integrated suites of specific kinds of information. The Moon is the only body other than Earth for which we have material samples of known geologic context for study. This volume seeks to show how the different kinds of information gained about the Moon relate to each other and also to learn from this experience, thus allowing more efficient planning for the exploration of other worlds.
Book Synopsis Atoms, Solids, and Plasmas in Super-Intense Laser Fields by : Dimitri Batani
Download or read book Atoms, Solids, and Plasmas in Super-Intense Laser Fields written by Dimitri Batani and published by Springer Science & Business Media. This book was released on 2001-09-30 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the 30th Course of the International School of Quantum Electronics on Atoms, Solids and Plasmas in Super-Intense Laser Fields, held 8-14 July, in Erice, Sicily
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Comprehensive Dissertation Index by :
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1984 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1973- include the following subject areas: Biological sciences, Agriculture, Chemistry, Environmental sciences, Health sciences, Engineering, Mathematics and statistics, Earth sciences, Physics, Education, Psychology, Sociology, Anthropology, History, Law & political science, Business & economics, Geography & regional planning, Language & literature, Fine arts, Library & information science, Mass communications, Music, Philosophy and Religion.
Book Synopsis Lasers in Materials Processing by : Edward A. Metzbower
Download or read book Lasers in Materials Processing written by Edward A. Metzbower and published by ASM International(OH). This book was released on 1983 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Government Research & Development Reports by :
Download or read book U.S. Government Research & Development Reports written by and published by . This book was released on 1969 with total page 1318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Service Modelling by : Vilho Räisänen
Download or read book Service Modelling written by Vilho Räisänen and published by John Wiley & Sons. This book was released on 2007-01-11 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn how to use service modelling to streamline and optimize processes! Information about customer needs, the technical composition of services, and service performance are fundamental to effective service management. Service modelling is a structured approach to utilizing this information to improve the way services are delivered. Consistent application of service modelling provides the automation of processes and timely access to information. Service Modelling presents a comprehensive, up-to-date overview of the topic, presented in the context both of business processes, and of requirements stemming from the need to manage network resources. Vilho Raisanen delivers a justification for service modelling, and explains state-of-the-art concepts, frameworks and standards in detail. Service Modelling: Provides a complete and illustrated overview of state-of-the-art concepts for service modelling, covering requirements and frameworks. Includes industry initiatives, conceptual frameworks, and the work of standardisation bodies. Discusses different modelling approaches, and the positioning of modelling of services in service management and in the wider operational context. Sets the modelling framework in the context of business drivers and modelling paradigms. Illustrates principles with real-world use cases, providing both fixed Internet and mobile network examples. Relates concepts to the work of TeleManagement Forum, giving practical examples throughout. Service Modelling: Principles and Applications is an invaluable guide to service modelling for telecommunications and data communications professionals, including vendors, operators, consultants, training organizations, service and content providers, system architects and engineers for IP-based services. Educational organizations, advanced undergraduate and graduate students on telecommunications and networking courses will also find this text invaluable.
Book Synopsis Laser Plasmas and Nuclear Energy by : Heinrich Hora
Download or read book Laser Plasmas and Nuclear Energy written by Heinrich Hora and published by . This book was released on 1975 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1980 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
