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ORBi Open Repository and Bibliography (306.968 recursos)

In may 2007, the ULg's Administrative Board (joined in June 2007 by the FUSAGx) decided to create an institutional repository and defined a strong institutional self-archiving policy to increase the visibility, accessibility and impact of the University's publications (Board's decision). This decision led to the official launch, in November 2008, of the ORBi platform including both the Academic Bibliography and the Institutional Repository of the Wallonia-Europe University Academy.

Engineering, computing & technology => Materials science & engineering

Mostrando recursos 1 - 20 de 182

  1. Polyvinyl alcohol and method for producing same

    Takayama, Takumi; Amano, Yusuke; Maekawa, Kazuko; Detrembleur, Christophe; Debuigne, Antoine; Jérôme, Christine
    According to the present invention a polyvinyl alcohol is produced by performing: a polymerization step wherein a polymer solution containing a polyvinyl ester is obtained by polymerizing a vinyl ester monomer by means of controlled radical polymerization in the presence of a radical initiator and an organic cobalt complex; an extraction step wherein a cobalt complex is extracted from the polymer solution by bringing the polymer solution into contact with an aqueous solution containing a water-soluble ligand; and a saponification step wherein a polyvinyl alcohol is obtained by saponifying the polyvinyl ester after the extraction step. Consequently, the present invention...

  2. Improvement in or relating to organic material

    Debuigne, Antoine; Dréan, Mathilde; Guégan, Philippe; Jérôme, Christine; Midoux, Patric; Rieger, Jutta
    The present invention provides polyplex comprising: (a) at least one polymer of formula (I) comprising at least one set of repeating units of formula: and wherein for each set of repeating units R 1 represents either a hydrogen atom or a straight or branched chain alkyl group having from 1 to 20 carbon atoms and R 2 represents a straight or branched chain alkyl group having from 1 to 20 carbon atoms, wherein n and m each represent an integer of from 1 to 5000, wherein the sum of n and m is from 10 to 250 when R 1...

  3. Synthèse contrôlée de (co)polymères à base de poly(vinylamine) et d'alcool polyvinylique par voie radicalaire en présence de complexes organométalliques

    Stiernet, Pierre; Debuigne, Antoine

  4. LASER CLAD HIGH SPEED STEEL THICK DEPOSITS: CORRELATIONS BETWEEN THE LOCAL THERMAL HISTORY, THE MICROSTRUCTURES AND THE WEAR MECHANISMS

    Mertens, Anne; Hashemi, Seyedeh Neda; Tchuindjang, Jérôme Tchoufack; Dedry, Olivier; Montrieux, Henri-Michel; Tomé Jardin, Ruben Antonio; Tran, Hoang Son; Carrus, Raoul; Habraken, Anne
    Thick High Speed Steel (HSS) coatings are Fe-Cr-C-based alloys that have proved useful in a wide variety of applications including machining and cutting, hot stamping and hot strip mills, thanks to their complex microstructure containing very hard carbides as e.g. V-rich MC, Mo- or W-rich M2C, Cr-rich M7C3 or M3C. Direct laser deposition, also known as laser cladding, has recently emerged as a very promising technique for the production and repair of such thick coatings. Indeed, the very high cooling and solidification rates imposed by laser cladding result in strongly refined out-of-equilibrium microstructures and potentially enhanced wear resistance. However, the...

  5. Advanced emulsion-templated porous polymers through controlled radical polymerization

    Mathieu, Kevin
    Macroporous polymer monoliths are remarkable materials used in several applications such as supported catalysis, chromatography, water purification, gas capture, to name but a few. The emulsion-templated polymerization method, often based on conventional radical polymerization, is a very popular and straightforward approach for preparing such porous polymers. Nevertheless, the demand for more and more sophisticated porous supports with controlled porosity, good mechanical properties and specific surface properties, is increasing and requires the development of innovative synthesis strategies. The present thesis aims to explore the possible benefits of controlled radical polymerization (CRP) for the design of advanced macroporous monoliths via emulsion templated...

  6. Macroporous poly(ionic liquid)/ionic liquid gels via CO2-based emulsion-templating polymerization

    Mathieu, Kevin; Jérôme, Christine; Debuigne, Antoine
    Peer reviewed

  7. Bis(formylphenolato)cobalt(II)-mediated alternating radical copolymerization of tert-butyl 2-trifluoromethylacrylate with vinyl acetate

    Banerjee, Sanjib; Bellan, Ekaterina V.; Gayet, Florence; Debuigne, Antoine; Detrembleur, Christophe; Poli, Rinaldo; Améduri, Bruno; Ladmiral, Vincent
    Peer reviewed

  8. Bis(formylphenolato)cobalt(II)-mediated alternating radical copolymerization of tert-butyl 2-trifluoromethylacrylate with vinyl acetate

    Banerjee, Sanjib; Bellan, Ekaterina V.; Gayet, Florence; Debuigne, Antoine; Detrembleur, Christophe; Poli, Rinaldo; Améduri, Bruno; Ladmiral, Vincent
    Peer reviewed

  9. Ethylene/vinyl acetate-based macrocycles via organometallic-mediated radical polymerization and CuAAC ‘click’ reaction

    Demarteau, Jérémy; De Winter, Julien; Detrembleur, Christophe; Debuigne, Antoine
    Peer reviewed

  10. Generation of open foam RVEs with sharp edges using Distance fields and Level sets

    Kilingar, Nanda Gopala; Noels, Ludovic; Massart, Thierry Jacques; Ehab Moustafa Kamel, Karim; Sonon, Bernard
    A methodology to generate Representative Volume Elements for open foam cellular materials based on distance and level set functions is explained. The main focus of this work is to properly represent the geometry of the sharp edges of the foam struts that are resulting from the solidification phase during manufacturing. An approach to generate RVEs for open-cell foams is described in [1], where arbitrary shaped tessellations are produced and specific combination of distance functions are used to generate open foam RVEs. Steep discontinuities in the distance functions derivatives result in the generation of jagged sharp edges, due to the use of discrete level...

  11. Quels futurs pour la fabrication de pièces métalliques ?

    Habraken, Anne; Delvenne, Pierre; Elsen, Catherine
    Les processus de fabrication des pièces métalliques sont au cœur de nombreux enjeux technologiques, sociopolitiques et économiques. Ces dernières années, des procédés tels le 3D Printing ou encore le formage incrémental ont apporté un renouveau possible face aux méthodes de fabrication traditionnelles. Si le premier est, à présent, bien connu du grand public, le formage incrémental mérite encore quelques explications. Ce procédé, relativement lent, est de mieux en mieux maîtrisé. Il permet de réaliser des pièces métalliques aussi diverses qu’une prothèse, un panneau de façade ou de porte de boeing, un évier de cuisine, ... Il comporte de multiples variantes et...

  12. A multiscale analysis of interface properties in 3D printed composites

    Zorzetto, Laura; Briatico Vangosa, Francesco; Rink, Marta; Andena, Luca; Ruffoni, Davide
    Peer reviewed

  13. Mimicking helicoidal biological materials to improve strength of synthetic composites

    Zorzetto, Laura; Ruffoni, Davide
    Peer reviewed

  14. Laser Cladding of High Speed Steel Deposits : Thermal history - Microstructure - Wear Behaviour

    Mertens, Anne
    This powerpoint presentation was used as teaching material in a seminar given as part of the course “Advanced Manufacturing technologies” at Université catholique de Louvain. It outlines important current issues in the development of additive technologies for the processing of metallic materials through a case study on the laser cladding of high speed steels. A particular attention was given to the role of local variation in thermal history in controlling the microstructure and the wear resistance of thick high speed steels deposits.

  15. Effect of volume-fraction dependent agglomeration of nanoparticles on the thermal conductivity of nanocomposites: Applications to epoxy resins, filled by SiO2, AlN and MgO nanoparticles

    Machrafi, Hatim; Lebon, Georgy; Iorio, C. S.
    Peer reviewed

  16. Le centre d'études, de recherches et d'essais scientifiques des constructions du génie civil et d'hydraulique fluviale de l'Université de Liège (C.E.R.E.S.)

    Campus, Ferdinand

  17. Travaux du comité pour l'étude du fluage des métaux à la température ordinaire. Recherches du Centre de Liège.

    Campus, Ferdinand
    1e partie. Limites de fluage et de relaxation -- 2e partie. Fluage et relaxation aux tensions élevées.

  18. The needs of research in the application of welding in steel building.

    Campus, Ferdinand

  19. Résolution aux différences finies de quelques problèmes de mécanique

    Campus, Ferdinand

  20. L'essai d'usure sur meule sablée : étude de l'essai et conditions recommandées pour son exécution.

    Campus, Ferdinand

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