Skip to Main content Skip to Navigation
Preprints, Working Papers, ...

Collective rearrangement at the onset of flow of a polycrystalline hexagonal columnar phase

Abstract : Creep experiments on polycrystalline surfactant hexagonal columnar phases show a power law regime, followed by a drastic fluidization before reaching a final stationary flow. The scaling of the fluidization time with the shear modulus of the sample and stress applied suggests that the onset of flow involves a bulk reorganization of the material. This is confirmed by X-ray scattering under stress coupled to \textit{in situ} rheology experiments, which show a collective reorientation of all crystallites at the onset of flow. The analogy with the fracture of heterogeneous materials is discussed.
Document type :
Preprints, Working Papers, ...
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-00120766
Contributor : Laurence Ramos Connect in order to contact the contributor
Submitted on : Tuesday, December 19, 2006 - 11:20:53 AM
Last modification on : Saturday, June 25, 2022 - 9:39:31 AM
Long-term archiving on: : Wednesday, April 7, 2010 - 12:54:48 AM

Files

PRL_Bauer.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

Teresa Bauer, Julian Oberdisse, Laurence Ramos. Collective rearrangement at the onset of flow of a polycrystalline hexagonal columnar phase. 2006. ⟨hal-00120766⟩

Share

Metrics

Record views

107

Files downloads

100