Academic literature on the topic 'Laser hybrid deposition'

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Dissertations / Theses on the topic "Laser hybrid deposition"

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Skåre, Daniel Gundersen. "Pulsed Laser Deposition of ZnO Nanostructures for Hybrid Inorganic/Organic Solar Cells." Thesis, Norwegian University of Science and Technology, Department of Electronics and Telecommunications, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9940.

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<p>Au catalyst ZnO nanostructures have been grown on the a- and c-plane sapphire substrate by PLD. Influence of substrate lattice orientation, substrate surface and different substrate annealing temperature have been characterized by AFM, SEM and XRD. This report shows that a-plane sapphire substrate annealed at 1000 degree C and 1200 degree C improves the growth condition of Au catalyst ZnO nanostructures. For c-plane sapphire; annealing at 1200 degree C and 1400 degree C enhances the nanostructure growth. The better growth condition is a result of the terrace-and-step morphology seen on the
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Ren, Lan. "Integrated process planning for a hybrid manufacturing system." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2008. http://scholarsmine.mst.edu/thesis/pdf/Ren_09007dcc8046714a.pdf.

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Thesis (Ph. D.)--Missouri University of Science and Technology, 2008.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed April 18, 2008) Includes bibliographical references.
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Juhasz, Michael J. "In and Ex-Situ Process Development in Laser-Based Additive Manufacturing." Youngstown State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ysu15870552278358.

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Perini, Matteo. "Additive manufacturing for repairing: from damage identification and modeling to DLD processing." Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/268434.

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The arrival on the market of a new kind of CNC machines which can both add and remove material to an object paved the way to a new approach to the problem of repairing damaged components. The additive operation is performed by a Direct Laser Deposition (DLD) tool, while the subtractive one is a machining task. Up to now, repair operations have been carried out manually and for this reason they are errors prone, costly and time consuming. Refurbishment can extend the life of a component, saving raw materials and resources. For these reasons, using a precise and repeatable CNC machine to repair
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Matsumura, Masashi. "Synthesis, electrical properties, and optical characterization of hybrid zinc oxide/polymer thin films and nanostructures." Birmingham, Ala. : University of Alabama at Birmingham, 2007. https://www.mhsl.uab.edu/dt/2009r/matsumura.pdf.

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Thesis (Ph. D.)--University of Alabama at Birmingham, 2007.<br>Title from PDF t.p. (viewed Feb. 3, 2010). Additional advisors: Derrick R. Dean, Sergey B. Mirov, Sergey Vyazovkin, Mary Ellen Zvanut. Includes bibliographical references (p. 122-145).
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Kulish, Aleksandr. "Etude paramétrique d’un procédé d’impression 3D (LMD) en vue d’optimiser l’intégrité matière : Application à l’alliage maraging 1.2709." Thesis, Lyon, 2022. http://www.theses.fr/2022LYSEE001.

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La thèse de doctorat présentée dans ce travail est consacrée à une méthode innovante de production de moules d'injection plastique. Cette méthode combine la technologie additive laser, notamment le rechargement par injection coaxiale de poudre (LMD) et la technique de traitement laser visant à réduire les contraintes résiduelles. Par conséquent, l'objectif principal du présent travail est d'optimiser et d'analyser la méthode de fabrication proposée en ce qui concerne les propriétés finales des pièces déposées. L'étude paramétrique de LMD des "simples cordons", des structures de type "mur" et d
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Abedrrabba, Sarra. "Solutions innovantes pour des filtres de fréquences volumiques et semi-volumiques performants, en céramique, silice fondue et thermoplastique COC/COP... : nouvelles alternatives pour les futurs programmes de satellite multimédia." Thesis, Brest, 2017. http://www.theses.fr/2017BRES0126/document.

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L’émergence des satellites très haut débit pour la couverture des zones rurales s’accompagne de nombreuses contraintes technologiques. Dans le cadre du plan France très haut débit, le projet THD-sat proposé par le CNES se base sur l’utilisation des bandes Q et V pour assurer les liaisons avec les stations au sol et libérer de la ressource sur la bande Ka communément utilisée par les satellites ancienne génération. Avec la montée en fréquence, les besoins en termes de filtrage deviennent très stricts nécessitant des considérations particulières. Le premier chapitre reprend le contexte de l’étud
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Käbisch, Sven. "Hybridsolarzellen aus ZnO-Nanostrukturen und konjugierten Polymeren." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2015. http://dx.doi.org/10.18452/17240.

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Hybridsolarzellen werden sowohl aus ZnO-Schichten als auch ZnO-Nanostrukturen und Poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b'']dithiophen)-alt-4,7(2,1,3-benzothiadiazol)] (PCPDTBT) hergestellt. Das Wachstum der ZnO-Schichten und Nanostrukturen wird mittels gepulster Laserdeposition (PLD) auf Saphirsubstraten durchgeführt. Die Schichten weisen eine c-Achsenorientierung auf. Die Polarität einer ZnO-Schicht bestimmt die Morphologie der nachfolgend gewachsenen ZnO-Nanostrukturen. Dabei kann die Morphologie kontrolliert zwischen Nanostäbchen auf einer O-terminierten ZnO-Schicht und
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Jaggernauth, Aneeta. "Polymer funcionalization of nano-graphene oxide by molecular layer deposition." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/14832.

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Mestrado em Engenharia de Materiais<br>O presente trabalho aborda o processo de funcionalização por via seca de nanopartículas de óxido de grafeno (nano-GO) visando o estabelecimento de ligações a polietilenoglicol (PEG) na sua superfície. Atualmente utilizam-se métodos químicos de funcionalização por via húmida com esta finalidade, no entanto são demorados e resultam em perdas significativas de amostra. O trabalho foi realizado em duas fases: o GO foi primeiramente sintetizado em forma de filme e pó utilizando um método “Hummers” modificado, sendo caracterizado por FTIR, SEM e DLS; e
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Lin, Youqin. "Deposition of a carbon or polypyrrole nano-layer on carbon nanotubes-alumina hybrids and its impact on their mechanical and physical properties." Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2012. http://www.theses.fr/2012ECAP0004.

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La croissance de nanotubes de carbone (NTC) sur particules micrometriques d'alumine (Al2O3) permet d'obtenir une dispersion uniforme des NTC dans des matrices sans enchevêtrement de NTC. Ce type de structure hybride NTC-Al2O3 fournit également une solution prometteuse au problème de sécurité de NTC car ils intègrent NTC avec des particules micrométriques, étendant la dimension des NTC à partir de nano-échelle au micro-échelle. Cependant, l'adhérence entre les NTC et les Al2O3 particules ne permet pas de fixer efficacement les NTC. Par ailleurs, une autre préoccupation essentielle de NTC est de
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