%0 Book
%T Poroelastic Theory Applied to the Adsorption-Induced Deformation of Amorphous Silica
%+ Laboratoire Charles Coulomb (L2C)
%+ Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC)
%+ Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM)
%+ Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères] (LIPhy)
%A Weigel, Coralie
%A Polian, Alain
%A Kint, Mathieu
%A Rouquette, Jérome
%A Haines, Julien
%A Foret, Marie
%A Vacher, Rene
%A Ruffle, Benoit
%A Coasne, Benoit
%Z L2C:17-244
%S POROMECHANICS VI: PROCEEDINGS OF THE SIXTH BIOT CONFERENCE ON POROMECHANICS
%P 14-19
%8 2017-07-09
%D 2017
%R 10.1061/9780784480779.003
%Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]
%Z Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other]
%Z Engineering Sciences [physics]/MaterialsBooks
%X Under a high pressure of helium, the volume change of amorphous silica is much smaller than expected from its elastic properties. This is due to helium insertion in the free volume of the glass network. Here, we report spectroscopic experiments using either helium or neon as penetrating pressurizing media and molecular simulation that indicate a relationship between the amount of gas adsorbed and the strain of the network. A generalized poromechanical approach, describing the elastic properties of microporous materials upon adsorption, is shown to successfully describe the physics of deformation of such silica glasses in which the free volume exists only at the sub-nanometer scale.
%G English
%L hal-01909090
%U https://hal.science/hal-01909090
%~ MNHN
%~ UPMC
%~ UGA
%~ CNRS
%~ ENSC-MONTPELLIER
%~ INPG
%~ IMPMC
%~ ICG
%~ ALLINSP
%~ L2C
%~ LIPHY
%~ INC-CNRS
%~ UPMC_POLE_2
%~ MIPS
%~ CHIMIE
%~ UNIV-MONTPELLIER
%~ SORBONNE-UNIVERSITE
%~ SU-SCIENCES
%~ UGA-COMUE
%~ ALLIANCE-SU
%~ UM-2015-2021
%~ TEST2-HALCNRS