Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Geneviève Foray"'
Publikováno v:
Materials, Vol 12, Iss 5, p 830 (2019)
Highly porous silica compacts for superinsulation were characterized by instrumented indentation. Samples showed a multi-scale stacking of silica particles with a total porous fraction of 90 vol %. The two main sources of silica available for the sup
Externí odkaz:
https://doaj.org/article/03a5acd76c20459fbd97b7841f7a6b9f
Autor:
William Gonçalves, Christophe L. Martin, Jonathan Amodeo, Geneviève Foray, Michel Perez, Julien Morthomas, Patrice Chantrenne
Publikováno v:
Scripta Materialia
Scripta Materialia, Elsevier, 2018, 157, pp.157-161. ⟨10.1016/j.scriptamat.2018.07.039⟩
Scripta Materialia, Elsevier, 2018, 157, pp.157-161. ⟨10.1016/j.scriptamat.2018.07.039⟩
International audience; The compression of highly porous silica nanospheres is investigated using molecular dynamics simulations and modeling. The ligaments network (3-6 nm) of nano-sized silica sustains the load and nanoparticles deform plastically
Autor:
Guilhem P. Baeza, Karine Masenelli-Varlot, Jacques Jestin, Geneviève Foray, Lucian Roiban, Bernard Yrieix, Bruno Chal
Publikováno v:
Journal of Materials Chemistry A
Journal of Materials Chemistry A, 2021, 9, pp.16447-16455. ⟨10.1039/d1ta02861h⟩
Journal of Materials Chemistry A, 2021, 9, pp.16447-16455. ⟨10.1039/d1ta02861h⟩
In recent decades, nanostructured silica has become a key component in several materials developed at the industrial length scale. Used for its outstanding ability to structure food, drugs, and rubber, to fulfil specific needs in numerous application
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9f46dbbc5778e72e0f73c1bc5a056fd
https://hal.archives-ouvertes.fr/hal-03483682
https://hal.archives-ouvertes.fr/hal-03483682
Autor:
Thomas Bonnal, Solène Tadier, Geneviève Foray, Elodie Prud'Homme, Ali Belarouci, Regis Orobtchouk
Publikováno v:
SN Applied Sciences
SN Applied Sciences, Springer Verlag, 2020, 2 (12), ⟨10.1007/s42452-020-03869-7⟩
SN Applied Sciences, Springer Verlag, 2020, 2 (12), ⟨10.1007/s42452-020-03869-7⟩
A new theoretical methodology enabling the determination of the complex refractive index has been developed and explored; it only requires to use a classical set-up to control the incident angle, without the need for a polarizer. As a proof of concep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e015643b69a444873af2681640ce1597
https://hal.archives-ouvertes.fr/hal-03048395
https://hal.archives-ouvertes.fr/hal-03048395
Autor:
William Gonçalves, Julien Morthomas, Michel Perez, Geneviève Foray, Patrice Chantrenne, Christophe L. Martin
Publikováno v:
Acta Materialia
Acta Materialia, Elsevier, 2018, 145, pp.165-174. ⟨10.1016/j.actamat.2017.12.005⟩
Acta Materialia, Elsevier, 2018, 145, pp.165-174. ⟨10.1016/j.actamat.2017.12.005⟩
The nanoporous structure and the mechanical properties of silica aerogels are studied by molecular dynamics simulations on large samples. For the first time, atomistic simulations are able to reproduce a pore size distribution, centered on 10 nm, com
Publikováno v:
Journal of Non-crystalline Solids
Journal of Non-crystalline Solids, 2021, 560, ⟨10.1016/j.jnoncrysol.2021.120727⟩
Journal of Non-crystalline Solids, 2021, 560, ⟨10.1016/j.jnoncrysol.2021.120727⟩
An alternative to supercritical drying to process silica aerogels is to apply evaporative drying to obtain particles that can then be used in the preparation of composite products. However, the mechanical behaviour of these particles is still poorly
Publikováno v:
Journal of Microscopy. 269:151-160
Environmental scanning electron microscopy (ESEM) allows the observation of liquids under specific conditions of pressure and temperature. Moreover, when working in the transmission mode, that is in scanning transmission electron microscopy (STEM), n
Publikováno v:
Journal of Microscopy. 269:3-13
For insulation applications, boards thinner than 2 cm are under design with specific thermal conductivities lower than 15 mW m-1 K-1 . This requires binding slightly hydrophobic aerogels which are highly nanoporous granular materials. To reach this s
Publikováno v:
European Journal of Environmental and Civil Engineering. 22:1446-1456
Local scale imaging techniques (SEM, CT) and global characterisation tools (X-ray diffraction, TG-DTA, and Fourier Transform Infrared microscope (FTIR)) have been used for years so as to fo...
Autor:
Julien Morthomas, William Gonçalves, Christophe L. Martin, Geneviève Foray, Michel Perez, Patrice Chantrenne
Publikováno v:
Journal of Non-Crystalline Solids
Journal of Non-Crystalline Solids, Elsevier, 2019, 516, pp.89-98. ⟨10.1016/j.jnoncrysol.2019.04.017⟩
Journal of Non-Crystalline Solids, Elsevier, 2019, 516, pp.89-98. ⟨10.1016/j.jnoncrysol.2019.04.017⟩
International audience; The low density (smaller than 10% of the bulk density) and the nanostructured porosity of silica aerogels provide their extremely low thermal conductivities but also impact their poor mechanical properties. Atomic scale simula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57e2caa79339d15e07584602a6ee94f8
https://hal.archives-ouvertes.fr/hal-02122365
https://hal.archives-ouvertes.fr/hal-02122365