Triple-point wetting of Xe on NaF

Bruschi, L.; Mistura, Giampaolo

doi:10.1103/physrevb.58.1181

Cited by 9 publications

(8 citation statements)

References 15 publications

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“…We also evaluate other 3 hypothetical substrates in order to ascertain the triple point wetting threshold. In section III, we compare these findings with those obtained previously in simulations and/or experiments for inert gases on various surfaces [24][25][26][27].…”

Section: Introductionmentioning

confidence: 64%

Threshold criterion for wetting at the triple point

et al. 2000

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Grand canonical simulations are used to calculate adsorption isotherms of various classical gases on alkali metal and Mg surfaces. Ab initio adsorption potentials and Lennard-Jones gas-gas interactions are used. Depending on the system, the resulting behavior can be nonwetting for all temperatures studied, complete wetting, or (in the intermediate case) exhibit a wetting transition. An unusual variety of wetting transitions at the triple point is found in the case of a specific adsorption potential of intermediate strength. The general threshold for wetting near the triple point is found to be close to that predicted with a heuristic model of Cheng et al. This same conclusion was drawn in a recent experimental and simulation study of Ar on CO2 by Mistura et al. These results imply that a dimensionless wetting parameter w is useful for predicting whether wetting behavior is present at and above the triple temperature. The nonwetting/wetting crossover value found here is w approximately 3.3.

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Section: Introductionmentioning

confidence: 64%

Threshold criterion for wetting at the triple point

et al. 2000

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“…8 We have successfully tested the prediction by Rascón and Parry of a film growth diverging as (Ϫ␦) Ϫ2 with a torsional disk oscillator, similar to that we already used in previous studies. 9 With such a technique we have measured the mass of liquid films of Ar and Kr adsorbed on the disk surface. We have employed an aluminum disk whose surface has been machined on a lathe by using a sharp cutting tool.…”

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confidence: 99%

“…The microbalance is mounted inside a double wall OFHC copper cell to reduce thermal gradients. 9 The platinum thermometer is glued to the inner cell while the heater is wrapped around the outer cell. The maximum temperature difference between the top and bottom parts inside the inner copper cell is estimated to be less than a few K. The temperature stability is better than 1 mK.…”

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confidence: 99%

Wetting on a geometrically structured substrate

Bruschi

Carlin

Mistura

2001

The Journal of Chemical Physics

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We have measured the growth of liquid films of Ar and Kr adsorbed on a geometrically structured substrate obtained by machining on a lathe a thin Al disk with a sharp cutting tool. Near liquid-vapor bulk coexistence, the film mass is found to diverge as a power law of the chemical potential difference from saturation with an exponent x=-1.93 +/-0.10, in very good agreement with recent scaling analysis results

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“…9 Instead, continuous wetting transitions have only been reported for pentane and octane on water. 12 The prediction of anomalous wetting of 4 He on heavy alkali metal surfaces 13 has instead been experimentally verified. 12 The prediction of anomalous wetting of 4 He on heavy alkali metal surfaces 13 has instead been experimentally verified.…”

Section: Introductionmentioning

confidence: 99%