Wetting Behavior of Argon on Graphite

Bruschi, L.; Torzo, G.; Chan, Moses H. W.

doi:10.1209/0295-5075/6/6/012

Cited by 33 publications

(15 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The film thickness does not diverge mainly due to gravitational thinning effects. 3 Beyond the vertical line of Fig. 3, which indicates T t , the total film thickness remains practically constant as the horizontal line, drawn as a guide to the eyes, clearly shows.…”

Section: Resultsmentioning

confidence: 86%

Triple-point wetting of Xe on NaF

Bruschi

Mistura

1998

Phys. Rev. B

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 86%

Triple-point wetting of Xe on NaF

Bruschi

Mistura

1998

Phys. Rev. B

View full text Add to dashboard Cite

show abstract

“…The shift, now known as the Gibbs-Thomson effect, has been studied with a variety of substances dispersed on inert substrates or confined in porous media. A sampling is given in the references in four groups: weakly interacting molecular species such as rare gas atoms in porous media ͑Brewer et Tell and Maris, 1983;Liezhao et al, 1986;Shimoda et al, 1986;Kondo et al, 1987;Brown et al, 1988;Bruschi et al, 1988;Hiroi et al, 1989;Jackson and McKenna, 1990;Rall et al, 1991;Duffy et al, 1995;Beaudoin et al, 1996͒, ice in porous media ͑Blachere andYoung, 1972;Gay et al, 1992;Maruyama et al, 1992;Ishizaki et al, 1996;Mori et al, 1996͒, dispersed metal particles ͑Takagi, 1954Gladkich et al, 1966;Wronski, 1967;Coombes, 1972;Peppiatt and Sambles, 1975;Buffat andBorel, 1976͒, andice in soils ͑Hoekstra andDelaney, 1974;Konrad and Morgenstern, 1981;Smith and Tice, 1988͒. The typical behavior of the first group is that melting begins appreciably below the bulk transition when the pores are filled. Although the first one or two adsorbed layers prefreeze, due to substrate attractive forces stronger than the interactions within the material.…”

Section: Porous Mediamentioning

confidence: 99%

The physics of premelted ice and its geophysical consequences

2006

View full text Add to dashboard Cite

The surface of ice exhibits the swath of phase-transition phenomena common to all materials and as such it acts as an ideal test bed of both theory and experiment. It is readily available, transparent, optically birefringent, and probing it in the laboratory does not require cryogenics or ultrahigh vacuum apparatus. Systematic study reveals the range of critical phenomena, equilibrium and nonequilibrium phase-transitions, and, most relevant to this review, premelting, that are traditionally studied in more simply bound solids. While this makes investigation of ice as a material appealing from the perspective of the physicist, its ubiquity and importance in the natural environment also make ice compelling to a broad range of disciplines in the Earth and planetary sciences. In this review we describe the physics of the premelting of ice and its relationship with the behavior of other materials more familiar to the condensed-matter community. A number of the many tendrils of the basic phenomena as they play out on land, in the oceans, and throughout the atmosphere and biosphere are developed.

show abstract

“…There have been many experimental observations of wetting transitions near T tr [4][5][6][7][8]. In most cases, the transition to wetting is continuous with t diverging with a critical exponent of 21͞3 as T tr is approached along the solid-vapor coexistence line, i.e., t~DT 21͞3 [3][4][5][6][7][8].…”

mentioning

confidence: 99%

“…In most cases, the transition to wetting is continuous with t diverging with a critical exponent of 21͞3 as T tr is approached along the solid-vapor coexistence line, i.e., t~DT 21͞3 [3][4][5][6][7][8]. This is expected theoretically on the basis of simple arguments involving long-range Van der Waals forces [2,3].…”

mentioning

confidence: 99%

Triple-Point Wetting and Liquid Condensation in a Slit Pore

Qiao

Christenson

1999

Phys. Rev. Lett.

View full text Add to dashboard Cite

We have used multiple-beam interferometry to study the temperature dependence of tert-butanol adsorption from vapor on mica, at an isolated surface and in a slit pore. The film thickness at one surface increases from 2 nm for 17 -24 ± C to .7 nm above the triple point T tr (25.5 ± C). Concomitantly, the surface separation at which the slit fills with liquid increases from 11 to 27 nm. These results show for the first time how a continuous triple-point wetting transition at one surface and suppression of the freezing transition in a slit pore affect capillary condensation near T tr PACS numbers: 68.15. + e, 64.70.Dv, 68.35.Rh, 68.45.Gd The thickness of films adsorbed from vapor depends on the relative strengths of substrate-adsorbent interactions and interactions between the molecules of the adsorbent [1]. Strong attraction between substrate and adsorbent often leads to complete wetting, where the absorbed film thickness t diverges as the vapor pressure approaches saturation. Wetting is common above the bulk triple point T tr of the adsorbent, where the film is fluid and similar in structure to the bulk liquid. At low temperatures, however, incompatibility in the structure of the adsorbed film imposed by the surface and that of the bulk crystalline phase often precludes complete wetting by the solid phase. The adsorbed film may grow to a thickness of a few molecular layers, and no further growth occurs unless nucleation of bulk solid takes place at or above saturation. Often there is thus a transition from incomplete wetting below T tr to complete wetting above T tr [2,3].There have been many experimental observations of wetting transitions near T tr [4][5][6][7][8]. In most cases, the transition to wetting is continuous with t diverging with a critical exponent of 21͞3 as T tr is approached along the solid-vapor coexistence line, i.e., t~DT 21͞3 [3][4][5][6][7][8]. This is expected theoretically on the basis of simple arguments involving long-range Van der Waals forces [2,3]. However, a first-order wetting transition at the bulk triple point has recently been reported for Ar and CH 4 on Au [9].One important example of a triple-point wetting transition is surface melting of bulk solids [10], where a fluid layer is formed on solid surfaces below the bulk melting point. In the presence of long-range, i.e., van der Waals forces, the thickness of the fluid layer should diverge with an exponent of 21͞3 as T approaches T tr .Other wetting transitions that have been discussed in the literature include wetting at the critical point T c [2,3]. A wetting transition at temperatures between T tr and T c requires strong temperature dependence of the substrateadsorbent interactions, and has been observed with shortchain alkanes adsorbed on water [11,12].In a slit, or a system of two parallel surfaces at a separation H, the phase behavior is more complex than at a single surface [13,14]. Complete wetting is no longer possible, since it would require t . H. Above T tr capillary condensation, a first-order vapor-liquid transiti...

show abstract

Wetting Behavior of Argon on Graphite

Cited by 33 publications

References 26 publications

Triple-point wetting of Xe on NaF

Triple-point wetting of Xe on NaF

The physics of premelted ice and its geophysical consequences

Triple-Point Wetting and Liquid Condensation in a Slit Pore

Contact Info

Product

Resources

About