Dual-band negative index ultrasonic metafluids

Autor: Oliver Mondain-Monval, Simon Raffy, Christophe Aristégui, Benoit Mascaro, Olivier Poncelet, Jacques Leng, Thomas Brunet

Publikováno v: 2016 Progress in Electromagnetic Research Symposium (PIERS).

The extraordinary properties of acoustic (random) metamaterials, such as negative refractive index, originate from low frequency resonances of sub-wavelength particles. While most of these functional materials are fabricated by mechanical engineering

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6458bdc1bcdd429572c86853a28ff6a0
https://doi.org/10.1109/piers.2016.7734223

Monitoring of crosslinking of a DGEBA-PAMAM adhesive in composite/aluminium bonded joint using mechanical and ultra-sound techniques

Autor: Michel Castaings, Benoit Mascaro, Martin E.R. Shanahan, Julien Jumel, Michal K. Budzik

Publikováno v: International Journal of Adhesion and Adhesives. 35:120-128

Adhesive cure is an important and determining aspect of strength and stability of bonded structures. Crosslinking of the polymer leads to the adhesive strength, stiffness and durability. Depending on the resin and curing agent used, cure time can var

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bd08bc58a35566e6e897cbf2a2117458
https://doi.org/10.1016/j.ijadhadh.2012.02.009

Experimental demonstration of a negative phase velocity in soft 3D metafluids

Autor: Benoit Mascaro, Christophe Aristégui, Kevin Zimny, Olivier Mondain-Monval, Olivier Poncelet, Thomas Brunet, Aurore Merlin, Jacques Leng

Publikováno v: 2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS).

We report a new class of soft 3D locally resonant ultrasonic fluid metamaterials, engineered using soft-matter techniques coupled with microfluidics. The propagation of Gaussian pulses within random suspensions of “ultra-slow” porous micro-beads

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::84b55e4963db817dd4db30b645cbf458
https://doi.org/10.1109/metamaterials.2015.7342457

Soft acoustic metamaterials by design

Autor: Jacques Leng, Olivier Mondain-Monval, Olivier Poncelet, Aurore Merlin, Simon Raffy, Thomas Brunet, Christophe Aristégui, Jerome Dubois, Benoit Mascaro

Publikováno v: 2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics.

The link between the constitutive parameters of dissipative media supporting (un)usual wave motions and the plane wave motion exhibition, has been established in order to propose a tool for designing functional materials able to control acoustic wave

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2724b5c52b9b779d067167076796b379
https://doi.org/10.1109/metamaterials.2014.6948637

Design of a fluorinated magneto-responsive material with tuneable ultrasound scattering properties

Autor: Kevin Zimny, Christophe Aristégui, Olivier Poncelet, Jacques Leng, Benoit Mascaro, Olivier Sandre, Olivier Mondain-Monval, Thomas Brunet

Publikováno v: Journal of materials chemistry‎ B
Journal of materials chemistry‎ B, Royal Society of Chemistry, 2014, 2 (10), pp.1285-1297. ⟨10.1039/c3tb21585g⟩

International audience; In this work, we describe the preparation of emulsions of fluorinated ferrofluid droplets suspended in a yield-stress hydrogel (Bingham fluid) with potential applications for ultrasound (US) spectroscopy and imaging. Fluorinat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c56221a0c5627a2ca967e4e73ef473a
http://hdl.handle.net/20.500.12278/76942