%0 Journal Article
%T Do lamellar liquid crystals flow like solids?
%+ Laboratoire des colloïdes, verres et nanomatériaux (LCVN)
%+ Institut de minéralogie et de physique des milieux condensés (IMPMC)
%+ Laboratoire de Physique de la Matière Condensée - UR UPJV 2081 (LPMC)
%+ Ecole Polytechnique Fédérale de Lausanne (EPFL)
%A Blanc, Christophe
%A Meyer, Claire
%A Asnacios, S.
%A Kleman, M.
%A Lelidis, Ioannis
%A Martin, J.-L.
%< avec comité de lecture
%@ 0950-0839
%J Philosophical Magazine Letters
%I Taylor & Francis
%V 85
%P 641-648
%8 2005
%D 2005
%R 10.1080/14786430500402482
%Z Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other]Journal articles
%X The role of dislocations in the deformation or flow of lamellar-phase liquid crystals is critically examined in the light of two studies. In the first, dislocation climb is directly observed under a compression normal to the layers. Two regimes of climb are evidenced. In the second study, lamellar phases are sheared in a rotating rheometer. Gliding screw dislocations carry a vorticity tensor component, which counterbalances plastically the applied vorticity. The similarities and differences between dislocation processes in solid and lamellar liquid crystals are discussed.
%G English
%L hal-00020027
%U https://hal.science/hal-00020027
%~ UNIV-PARIS7
%~ UPMC
%~ CNRS
%~ UNIV-PICARDIE
%~ UNIV-MONTP2
%~ IMPMC
%~ ALLINSP
%~ LCVN
%~ UPMC_POLE_2
%~ UNIV-MONTPELLIER
%~ SORBONNE-UNIVERSITE
%~ SU-SCIENCES
%~ UNIV-PARIS
%~ U-PICARDIE
%~ LPMC-UPJV
%~ ALLIANCE-SU
%~ UM1-UM2