التفاصيل البيبلوغرافية
| العنوان: |
Nonlinear rheology of a nanoconfined simple fluid. |
| المؤلفون: |
Bureau L; Institut des Nanosciences de Paris, UMR 7588 CNRS-Université Paris 6, 140 rue de Lourmel, 75015 Paris, France. bureau@insp.jussieu.fr |
| المصدر: |
Physical review letters [Phys Rev Lett] 2010 May 28; Vol. 104 (21), pp. 218302. Date of Electronic Publication: 2010 May 25. |
| نوع المنشور: |
Journal Article |
| اللغة: |
English |
| بيانات الدورية: |
Publisher: American Physical Society Country of Publication: United States NLM ID: 0401141 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1079-7114 (Electronic) Linking ISSN: 00319007 NLM ISO Abbreviation: Phys Rev Lett Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: |
Original Publication: New York : American Physical Society |
| مستخلص: |
We probe the rheology of the model liquid octamethylcyclotetrasiloxane (OMCTS) confined into molecularly thin films, using a unique surface force apparatus allowing us to explore a large range of shear rates and confinement. We thus show that OMCTS under increasing confinement exhibits the viscosity enhancement and the nonlinear flow properties characteristic of a sheared supercooled liquid approaching its glass transition. Besides, we study the drainage of confined OMCTS via the propagation of "squeeze-out" fronts. The hydrodynamic model proposed by Becker and Mugele [Phys. Rev. Lett. 91, 166104 (2003)] to describe such front dynamics leads to a conclusion in apparent contradiction with the dynamical slowdown evidenced by rheology measurements, which suggests that front propagation is not controlled by large scale flow in the confined films. |
| تواريخ الأحداث: |
Date Created: 20100928 Date Completed: 20110112 Latest Revision: 20100927 |
| رمز التحديث: |
20240628 |
| DOI: |
10.1103/PhysRevLett.104.218302 |
| PMID: |
20867143 |
| قاعدة البيانات: |
MEDLINE |
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