Surface energy of solids

Bikerman, J. J.

doi:10.1007/bfb0048037

Cited by 17 publications

(10 citation statements)

References 122 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Surface energy is a thermodynamic construct defined as the work necessary to form a unit area of surface by a process of division (1,9). Conceptually, surface energy can be considered as the amount of energy lost when the molecular bonds that are normally filled inside a solid remain unfilled as a result of being at the edge of the solid (10).…”

Section: Theory Of Surface Energymentioning

confidence: 99%

Surface Energy Characteristics and Impact of Natural Minerals on Aggregate–Bitumen Bond Strengths and Asphalt Mixture Durability

Miller¹,

Little²,

Bhasin

et al. 2012

Transportation Research Record: Journal of the Transportation R

View full text Add to dashboard Cite

The surface free energy of a solid is a material property that influences its interaction with other solids, liquids, and gases. Mineral aggregates are mixed with bitumen in the production of asphalt mixtures, and the interaction of aggregates with bitumen, water, or chemical modifiers affects the overall performance of the mixtures and, in turn, the pavement structure. A comprehensive characterization of the minerals that make up these aggregates can be used to explain the interactions between the aggregates and components used to bind the aggregates including bitumen, water, and chemical additives. This paper combines several techniques to quantify and describe or catalog mineral properties. These properties primarily include surface free energy, specific surface area, and surface carbon content of some of the most common minerals found in aggregates. The paper presents data that exemplify how this information can be used to characterize the moisture-induced stripping potential for bitumen–mineral combinations. Results indicate that a simple energy ratio calculated on the basis of adhesive bond energies from surface free energy measurements of the minerals and the bitumen can predict performance in asphalt mixtures and that a few minerals can form thermodynamically stable bonds with some bitumens that are inherently resistant to stripping.

show abstract

Section: Theory Of Surface Energymentioning

confidence: 99%

Surface Energy Characteristics and Impact of Natural Minerals on Aggregate–Bitumen Bond Strengths and Asphalt Mixture Durability

Miller¹,

Little²,

Bhasin

et al. 2012

Transportation Research Record: Journal of the Transportation R

View full text Add to dashboard Cite

show abstract

“…where Pc is capillary pressure (in pascals); pg, pressure in the gas phase (in pascals); p•, pressure in the liquid phase (in pascals); •/sg, interfacial tension of the solid-gas interface (in newtons per meter); and 3] s, interfacial tension of the liquidsolid interface (in newtons per meter) [Evans et al, 1986]. For most systems the interfacial tensions ½g and 3] s cannot be measured accurately (these measurement difficulties are reviewed by Bikerman [1978]); thus (1) must be recast with parameters that can be obtained experimentally. In most gasliquid-solid capillary systems these parameters are liquid-gas interfacial tensions and contact angles.…”

Section: Capillary Pressure In Porous Mediamentioning

confidence: 99%

Calculation of Temperature Effects on Wetting Coefficients of Porous Solids and Their Capillary Pressure Functions

Grant¹,

Salehzadeh²

1996

Water Resources Research

183

139

View full text Add to dashboard Cite

We explored the notion that changes in wetting coefficients of porous solids contributed to the temperature sensitivities of capillary pressure functions (CPFs). A chemical-thermodynamic explanation for these contributions was developed. If the temperature sensitivities of CPFs were due to capillarity (i.e., due to temperature-induced changes in liquid-gas interfacial tensions or wetting coefficients), then for a given degree of saturation the ratios of capillary pressures to their temperature derivatives should have been linear functions of thermodynamic temperature with slopes equal to 1. This indeed was the case for samples of both synthetic and natural porous media. Further, the estimated intercepts of these linear functions indicated that changes with temperature of these porous materials' wetting coefficients had pronounced effects on temperature sensitivities of their CPFs. A simple model for temperature effects on CPFs, which was derived from the linear relationship between temperature and the ratio of capillary pressure to its temperature derivative, could be fitted precisely by nonlinear regression to CPFs of two soils determined at four temperatures. GRANT AND SALEHZADEH: CALCULATIONOF TEMPERATURE EFFECTS 263 GRANT AND SALEHZADEH: CALCULATION OF TEMPERATURE EFFECTS Rowlinson, J. S., and B. Widom, Molecular Theory of Capillarity, Clarendon, Oxford, 1982. Salehzadeh, A., The temperature dependence of soil-moisture characteristics of agricultural soils, Ph.D. dissertation, Diss. Abstr. AAD91-01559, 191 pp., Univ. of Wis., Madison, 1990. Soll, W. E., M. A. Celia, and J. L. Wilson, Micromodel studies of three-fluid porous media systems: Pore-scale processes relating to capillary pressure-saturation relationships, Water Resour. Res., 29, 2963-2974, 1993. van Genuchten, M. T., A closed-form equation for predicting the hydraulic conductivity of unsaturated soils, Soil Sci. Soc. Am. J., 44, 892-898, 1980. Whalen, J. W., Thermodynamic properties of water adsorbed on quartz, J. Phys. Chem., 65, 1676-1681, 1961. S. A. Grant, Cold Regions Research and Engineering Laboratory, 72 Lyme Rd., Hanover, NH 03755-1290. (e-mail: sgrant@crrel. usace.army.mil) A. Salehzadeh,

show abstract

“…The thermodynamics of fluids in contact with solid surfaces has engendered much debate, including over the meaning of quantities such as the "surface" tension in the context of solid-fluid interface. [19][20][21] (In contrast to a liquid, it is not conceivable to strain the surface of the solid without simultaneously straining the bulk.) However, these debates are avoided by simply following Gibbs' 22 development.…”

Section: Theorymentioning

confidence: 99%

Dissecting The Salinity-Dependence Of Wettability In Oil/Brine/Calcite System Using Molecular Simulations

Alhosani¹,

A²,

Fm³

et al. 2019

Preprint

View full text Add to dashboard Cite

Low salinity water flooding has shown great promise due to its cost-effectiveness and low environmental impact for improving and sustaining oil production. It is believed that injecting water with ionic strength lower than that of the reservoir changes the reservoir from less to more water-wet and enhances oil recovery. This alteration phenomenon is not well understood, due to complex interactions between oil, water, and rock. Here we use molecular simulations to characterize the wettability of the 10.4-face of calcite in a calcite/brine/oil system, and address how wettability is altered by changing ionic strength and salt type (NaCl vs. CaCl<sub>2</sub>). Using the test area method we calculate the superficial tension of the fluids against the solid and the surface tension between the two fluid phases. As the salinity is decreased, the wetting of calcite by brine is progressively less favored, contrary to what might be expected based on low salinity flooding. However, as salinity is decreased, forming the oil-brine interface is more favored. On balance, it is the latter effect that leads to the enhanced wetting of calcite by brine in the oil-brine-calcite system, and it is suggested as an important element in the physics underlying low-salinity flooding. <br>

show abstract

Surface energy of solids

Cited by 17 publications

References 122 publications

Surface Energy Characteristics and Impact of Natural Minerals on Aggregate–Bitumen Bond Strengths and Asphalt Mixture Durability

Surface Energy Characteristics and Impact of Natural Minerals on Aggregate–Bitumen Bond Strengths and Asphalt Mixture Durability

Calculation of Temperature Effects on Wetting Coefficients of Porous Solids and Their Capillary Pressure Functions

Dissecting The Salinity-Dependence Of Wettability In Oil/Brine/Calcite System Using Molecular Simulations

Contact Info

Product

Resources

About