Lateral force microscopy study of the friction between silica surfaces in electrolyte solutions

Bogdan C. Donose*, Ivan Uriev Vakarelski, Ko Higashitani

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

Lateral force measurements between a polished silica wafer and a colloidal silica particle in monovalent electrolyte solution environment (LiCl, NaCl, CsCl) were performed using an Atomic Force Microscope (AFM). Analysis of the friction versus load data, in LiCl case, indicates that increasing the electrolyte concentration, the intensity of the friction force decreases. The effects of the counterions on lateral forces show that friction coefficients gradually decrease from pure Dl water to 1.0M LiCl. Lateral forces versus scan rate graphs show a typical behavior for all investigated systems: transition and saturation region. These results are consistent with the idea that strongly hydrated ions have a lubrication effect in silica-silica interactions.

Original languageEnglish (US)
Pages2555-2558
Number of pages4
StatePublished - Dec 1 2004
Event2004 AIChE Annual Meeting - Austin, TX, United States
Duration: Nov 7 2004Nov 12 2004

Other

Other2004 AIChE Annual Meeting
CountryUnited States
CityAustin, TX
Period11/7/0411/12/04

ASJC Scopus subject areas

  • Engineering(all)

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