``Over the horizon`` SANS: Measurements on near-surface Poiseuille shear-induced ordering of dilute solutions of threadlike micelles

Technical Report · Sat Jun 24 04:00:00 EDT 1995

DOI:https://doi.org/10.2172/161537· OSTI ID:161537

Hamilton, W A; Butler, P D; Hayter, J B ^[1]; Magid, L J; Kreke, P J ^[2]

---

1. Oak Ridge National Lab., TN (United States). Neutron Scattering Group
2. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry

Although the behavior of a fluid under shear near a surface can be expected to be critically important to its drag and lubrication properties, most shear measurements to date have been of the bulk. This paper outlines the use of a specially developed Poiseuille shear cell at grazing incidence to measure the small-angle neutron scattering (SANS) signal from the first few tens of microns in the interfacial region. The authors illustrate the technique with measurements made on the near-surface ordering in flow past a quartz surface of dilute surfactant solutions comprising highly extended self-assembling ``threadlike`` micelles.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 161537
• Report Number(s): CONF-9506292--1; ON: DE96003039
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
AQUEOUS SOLUTIONS
CORRECTIONS
DIAGNOSTIC TECHNIQUES
EXPERIMENTAL DATA
INTERFACES
LAMINAR FLOW
MEASURING METHODS
MICELLAR SYSTEMS
MORPHOLOGY
NEUTRONS
SHEAR
SMALL ANGLE SCATTERING
SURFACTANTS