Measurement of retarded dispersion forces of mica

A. M. Stewart; V. V. Yaminsky; S. Ohnishi

doi:10.1021/la0156311

Measurement of retarded dispersion forces of mica

A. M. Stewart, V. V. Yaminsky^*, S. Ohnishi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

We report direct high-resolution capacitor measurements of the force against distance between crossed cylindrical mica surfaces in air. The dispersion interaction in the range of distances between 20 and 100 nm occurs in the retarded regime. The force is found to vary as the inverse cube of the distance of nearest separation in good agreement with the early measurements of Tabor and Winterton. The measured deformation on contact is in agreement with the theory of Johnson, Kendall, and Roberts. The plane of origin of the retarded van der Waals force is shifted outward from the equilibrium contact position at zero external load by the magnitude of contact deformation.

Original language	English
Pages (from-to)	1453-1456
Number of pages	4
Journal	Langmuir
Volume	18
Issue number	5
DOIs	https://doi.org/10.1021/la0156311
Publication status	Published - 5 Mar 2002

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abstract = "We report direct high-resolution capacitor measurements of the force against distance between crossed cylindrical mica surfaces in air. The dispersion interaction in the range of distances between 20 and 100 nm occurs in the retarded regime. The force is found to vary as the inverse cube of the distance of nearest separation in good agreement with the early measurements of Tabor and Winterton. The measured deformation on contact is in agreement with the theory of Johnson, Kendall, and Roberts. The plane of origin of the retarded van der Waals force is shifted outward from the equilibrium contact position at zero external load by the magnitude of contact deformation.",

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N2 - We report direct high-resolution capacitor measurements of the force against distance between crossed cylindrical mica surfaces in air. The dispersion interaction in the range of distances between 20 and 100 nm occurs in the retarded regime. The force is found to vary as the inverse cube of the distance of nearest separation in good agreement with the early measurements of Tabor and Winterton. The measured deformation on contact is in agreement with the theory of Johnson, Kendall, and Roberts. The plane of origin of the retarded van der Waals force is shifted outward from the equilibrium contact position at zero external load by the magnitude of contact deformation.

AB - We report direct high-resolution capacitor measurements of the force against distance between crossed cylindrical mica surfaces in air. The dispersion interaction in the range of distances between 20 and 100 nm occurs in the retarded regime. The force is found to vary as the inverse cube of the distance of nearest separation in good agreement with the early measurements of Tabor and Winterton. The measured deformation on contact is in agreement with the theory of Johnson, Kendall, and Roberts. The plane of origin of the retarded van der Waals force is shifted outward from the equilibrium contact position at zero external load by the magnitude of contact deformation.

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Measurement of retarded dispersion forces of mica

Abstract

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