The research on this subject is driven through a material-by-design approach relying on the formulation of a set of requirements in terms of performances and constraints, based on which the best material solution is sought. In most cases, only new combinations of materials with new topologies, sizes, hierarchy of microstructure and internal stress distributions can meet the requirements, motivating the development of composites, hybrids and architectured solutions.
For the processing, assembly techniques involving adhesive bonding, friction stir welding, diffusion bonding or interlocking, and casting are combined with new thermomechanical methods such as accumulative roll bonding or friction stir processing, coating deposition, macroscopic lithography techniques, foaming, resin transfer moulding (in collaboration with the IMCN institute), squeeze casting, additive manufacturing and sintering. This allows the generation of new innovative systems, several protected by patents. These systems are characterized and tested using the panoply of methods available in the institute or at UCL in general. The modeling heavily relies on multiscale multiphysics approaches. Integrated modeling chaining the processing steps and operation under various applied thermal, mechanical or electrical loading has been pursued for some of the systems.
The most significant achievements over the last 10 years involve architectured material solutions for energy recovery using thermoelectric or magnetocaloric effects and for electromagnetic shielding combined with high thermal-mechanical performances (in collaboration with colleagues from the IMCN and ICTEAM institutes), the understanding, modeling and optimization of the friction stir welding technique, the mechanical performances of composites for aeronautic applications through properly accounting for the epoxy resin behavior, the development of super ductile flexible electronics systems, the multiscale modeling of adhesive bonding and the processing of a variety of innovative metal matrix composites by squeeze casting or friction stir processing. A representative list of publications on this topic is provided in Appendix A.I.3. In 2013, about 15 researchers are working on this topic.
IMAP is actively involved in the research center for “Architectured and Composites Materials”, ARCOMAT, with colleagues of iMMC and other institutes. The funding comes from both fundamental and applied public research sources, as well as directly from industry.
International Journals
Van Velthem, Pascal ; Ballout, Wael ; Dumont, David ; Daoust, Daniel ; Sclavons, Michel ; Cordenier, François ; Pardoen, Thomas; Devaux, Jacques ; Bailly, Christian. Phenoxy nanocomposite carriers for delivery of nanofillers in epoxy matrix for resin transfer molding (RTM)-manufactured composites. In: Composites Part A: Applied Science and Manufacturing, Vol. 76, no.n/n, p. 82-91 (septembre 2015).
Navarro, Etienne ; Bréchet, Yves ; Barthelemy, A. ; Radu, I. ; Pardoen, Thomas ; Raskin, Jean-Pierre. Adhesion and separation models for direct hydrophilic bonding. In: Journal of Applied Physics, Vol. 117, no. --, p. 085305-1 - 085305-6 (2015)
Monnereau, Laure ; Urbanczyk, Laetitia ; Thomassin, Jean-Michel ; Pardoen, Thomas ; Bailly, Christian ; Huynen, Isabelle ; Jérôme, Christine ; Detrembleur, Christophe. Gradient Foaming of Polycarbonate/carbon nanotube based Nanocomposites with Supercritical Carbon Dioxide and their EMI Shielding Performances. In: Polymer, Vol. 59, p. 117-123 (2015)
Van Velthem, Pascal ; Ballout, Wael ; Daoust, Daniel ; Sclavons, Michel ; Cordenier, François ; Henry, Edwin ; Dumont, David ; Destoop, Vincent ; Pardoen, Thomas ; Bailly, Christian. Influence of thermoplastic diffusion on morphology gradient and on delamination toughness of RTM-manufactured composites. In: Composites Part A: Applied Science and Manufacturing, Vol. 72, no.n/n, p. 175-183 (mai 2015)
Favache, Audrey ; Libralesso, Laure ; Jacques, Pascal ; Raskin, Jean-Pierre ; Bailly, Christian ; Nysten, Bernard ; Pardoen, Thomas. Fracture toughness measurement of ultra-thin hard films deposited on a polymer. In: Thin Solid Films, Vol. 550, no. 1, p. 464-471 (janvier 2014)
Navarro, E. ; Bréchet, Y. ; Barthelemy, A. ; Radu, I. ; Pardoen, Thomas ; Raskin, Jean-Pierre. Influence of the bonding front propagation on the wafer stack curvature. In: Applied Physics Letters, Vol. 105, no.6, p. 061908 (2014)
Molenberg, Isabel ; Bernal, Mar ; Bollen, Pierre ; Spote, David ; Verdejo, Raquel ; Pardoen, Thomas ; Bailly, Christian ; Huynen, Isabelle. Simple, convenient and non-destructive electromagnetic characterisation technique for composite and multiscale hybrid samples at microwave frequencies. In: Microwave & Optical Technology Letters, Vol. 56, no. 2, p. 504-509 (February 2014)
Pierman, Anne-Pascale ; Bouaziz, O. ; Pardoen, Thomas ; Jacques, Pascal ; Brassart, Laurence. The influence of microstructure and composition on the plastic behaviour of dual-phase steels. In: Acta Materialia, Vol. 73, no.--, p. 298-311 (Online May 2014)
Wucher, B. ; Lani, Frédéric ; Pardoen, Thomas ; Bailly, Christian ; Martiny, Philippe. Tooling geometry optimization for compensation of cure-induced distortions of a curved carbon/epoxy C-spar. In: Composites Part A: Applied Science and Manufacturing, Vol. 56, no.--, p. 27-35 (janvier 2014)
Navarro, E. ; Bréchet, Y. ; Moreau, R. ; Pardoen, Thomas ; Raskin, Jean-Pierre ; Barthelemy, A. ; Radu, I.. Direct silicon bonding dynamics: A coupled fluid/structure analysis. In: Applied Physics Letters, Vol. 103, no.3, p. 034104 (2013)
Thomassin, Jean-Michel ; Jérôme, Christine ; Pardoen, Thomas ; Bailly, Christian ; Huynen, Isabelle ; Detrembleur, Christophe. Polymer/carbon based composites as electromagnetic interference (EMI) shielding materials. In: Materials Science and Engineering: R: Reports, Vol. 74, no.7, p. 211-232 (2013)
Lambricht, N. ; Pardoen, Thomas ; Yunus, Sami. Giant stretchability of thin gold films on rough elastomeric substrates. In: Acta Materialia, Vol. 61, no. 2, p. 540-547 (2013)
Martiny, Ph. ; Lani, Frédéric ; Kinloch, A.J. ; Pardoen, Thomas. A maximum stress at a distance criterion for the prediction of crack propagation in adhesively-bonded joints. In: Engineering Fracture Mechanics, Vol. 97, no.1, p. 105-135 (2013)
Bollen, Pierre ; Quiévy, Nicolas ; Huynen, Isabelle ; Bailly, Christian ; Detrembleur, C. ; Thomassin, J.M. ; Pardoen, Thomas. Multifunctional architectured materials for electromagnetic absorption. In: Scripta Materialia, Vol. 68, no.1, p. 50-54 (2013)
Martiny, Philippe ; Lani, Frédéric ; Kinloch, A.J. ; Pardoen, Thomas. A multiscale parametric study of mode I fracture in metal-tometal low-toughness adhesive joints. In: International Journal of Fracture, Vol. 173, no.2, p. 105-133 (2012)
Simar, Aude ; Bréchet, Yves ; de Meester de Betzenbroeck, Bruno ; Denquin, Anne ; Gallais, Christophe ; Pardoen, Thomas. Integrated modeling of friction stir welding of 6xxx series Al alloys: Process, microstructure and properties. In: Progress in Materials Science, Vol. 57, no. 1, p. 95-183 (2012)
Quiévy, Nicolas ; Bollen, Pierre ; Thomassin, Jean-Marie ; Detrembleur, Christophe ; Pardoen, Thomas ; Bailly, Christian ; Huynen, Isabelle. Electromagnetic absorption properties of carbon nanotube nanocomposite foam filling honeycomb waveguide structures. In: IEEE Transactions on Electromagnetic Compatibility (special issue on Nanotechnology), Vol. 54, no. 1, p. 47-53 (2012)
Huynen, Isabelle ; Quiévy, Nicolas ; Bailly, Christian ; Bollen, Pierre ; Detrembleur, Christophe ; Eggermont, Stéphanie ; Molenberg, Isabel ; Thomassin, J.M. ; Urbanczyk, L. ; Pardoen, Thomas. Multifunctional hybrids for electromagnetic absorption. In: Acta Materialia, Vol. 59, no. 8, p. 3255-3266 (2011)
Tekoglu, Cihan ; Pardoen, Thomas ; Gibson, L.J. ; Onck, P.R. Size effects in foams: experiments and modeling. In: Progress in Materials Science, Vol. 56, no. 2, p. 109-138 (2011).
Tekoglu, C. ; Pardoen, Thomas. A micromechanics based damage model for composite materials. In: International Journal of Plasticity, Vol. 26, no. 4, p. 549-569 (2010)
Simar, Aude ; Jonckheere, Caroline ; Deplus, K. ; Pardoen, Thomas ; de Meester de Betzenbroeck, Bruno. Comparing similar and dissimilar friction stir welds of 2017-6005A aluminium alloys. In: Science and Technology of Welding and Joining, Vol. 15, no. 3, p. 254-259 (2010)
Simar, Aude ; Brechet, Y. ; de Meester, B. ; Denquin, A. ; Pardoen, Thomas. Microstructure, local and global mechanical properties of friction stir welds in aluminium alloy 6005A-T6. In: Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing, Vol. 486, no. 1-2, p. 85-95 (2008)
Martiny, Ph. ; Lani, Frédéric ; Kinloch, A. J. ; Pardoen, Thomas. Numerical analysis of the energy contributions in peel tests: A steady-state multilevel finite element approach. In: International Journal of Adhesion and Adhesives, Vol. 28, no. 4-5, p. 222-236 (2008)
Simar, Aude ; Brechet, Y. ; de Meester, B. ; Denquin, A. ; Pardoen, Thomas. Sequential modeling of local precipitation, strength and strain hardening in friction stir welds of an aluminum alloy 6005A-T6. In: Acta Materialia, Vol. 55, no. 18, p. 6133-6143 (2007)
Gallais, C. ; Simar, Aude ; Fabregue, D. ; Denquin, A. ; Lapasset, G. ; de Meester, B. ; Brechet, Y. ; Pardoen, Thomas. Multiscale analysis of the strength and ductility of AA 6056 aluminum friction stir welds. In: Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science, Vol. 38A, no. 5, p. 964-981 (2007)
Bertholet, Y. ; Olbrechts, Benoit ; Lejeune, B. ; Raskin, Jean-Pierre ; Pardoen, Thomas. Molecular bonding aided by dissipative inter-layers. In: Acta Materialia, Vol. 55, no. 2, p. 473-479 (2007)
Béfahy, Stéphane ; Yunus, Sami ; Pardoen, Thomas ; Bertrand, Patrick ; Troosters, M. Stretchable helical gold conductor on silicone rubber microwire. In: Applied Physics Letters, Vol. 91, no. 14 (2007)
Koza, E. ; Proost, Joris. Processing of high-temperature resistant three-dimensional networks of interconnected metallic fibres by pack aluminization. In: Materials at High Temperatures : materials generation applications, Vol. 23, no. 1, p. 13-28 (2006)
Pardoen, Thomas ; Ferracin, T ; Landis, CM ; Delannay, Francis. Constraint effects in adhesive joint fracture. In: Journal of the Mechanics and Physics of Solids, Vol. 53, no. 9, p. 1951-1983 (2005)
Ferracin, T ; Landis, CM ; Delannay, Francis ; Pardoen, Thomas. On the determination of the cohesive zone properties of an adhesive layer from the analysis of the wedge-peel test. In: International Journal of Solids and Structures, Vol. 40, no. 11, p. 2889-2904 (2003)
Huck, Wilhelm T.S. ; Bowden, N. ; Onck, P. ; Pardoen, Thomas ; Hutchinson, J.W. ; Whitesides, G.M. Ordering of spontaneously formed buckles on planar surfaces. In: Langmuir : the A C S journal of surfaces and colloids, Vol. 16, no. 7, p. 3497 - 3501 (2000)