What are the units for the Hamaker constant?
Nomenclature
| A | Hamaker constant |
|---|---|
| Γ | function used in eqn (11.5) |
| ɛ0 | dialectic permittivity in vacuum, 8.854 × 10−12 C2J−1m−1 (SI units) |
| ɛr | relative dialectic permittivity of water, 78.5 at 25°C |
| ζ | electrokinetic (zeta) potential |
How is Hamaker constant calculated?
Calculation of the Hamaker Constant In particular, the following expression was plotted: (x, y) = ((n2 – 1)ω2, n2 – 1). The slope of the regression line of this plot corresponds to the value of , whereas the plot’s intercept corresponds to the value of CUV.
How do you pronounce Hamaker?
- Phonetic spelling of Hamaker. Ha-maker. hamak-er.
- Meanings for Hamaker.
- Translations of Hamaker. Chinese : 正常
What is the Hamaker constant?
It is named after H. C. Hamaker. The magnitude of this constant reflects the strength of the vdW-force between two particles, or between a particle and a substrate. The Hamaker constant provides the means to determine the interaction parameter C from the vdW-pair potential,
What is the Hamaker constant for a van der Waals interaction?
The Hamaker constant A can be defined for a van der Waals (vdW) body–body interaction: are the number densities of the two interacting kinds of particles, and C is the London coefficient in the particle–particle pair interaction.
What is the Hamaker constant for VW?
The Hamaker constant A can be defined for a van der Waals (vdW) body–body interaction: are the number densities of the two interacting kinds of particles, and C is the London coefficient in the particle–particle pair interaction. It is named after H. C. Hamaker.
What is the value of HC in the Hamaker equation?
if use is made of the ‘critical’ Hamaker constant Hc = (9π 2 /32) ( kT) 2 / κ for which (17) holds with σ = 0. The ensuing scaling law is not only a consequence of the expansion but follows generally from S (0)/ S ( σ) as given by (13).