Loss of tensile strength in liquids without property discontinuities: A thermodynamic analysis

D’Antonio, Michael C.; Debenedetti, Pablo G.

doi:10.1063/1.452121

Cited by 44 publications

(17 citation statements)

References 7 publications

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“…For mixtures, these response functions remain finite at the spinodal (a comprehensive discussion about the stability criteria can be found in Refs. [26][27][28][29]), except in the special case of occurrence of azeotropy (at the azeotropic composition, the mixture is behaving as a pure fluid).…”

Section: Experimental Observations Of Negative Pressure In Liquidsmentioning

confidence: 98%

Thermodynamics of Negative Pressures in Liquids

Imre¹,

Martinás²,

Rebelo³

1998

Journal of Non-Equilibrium Thermodynamics

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Nature uses negative pressures in the most resourceful and efficient ways. Yet, negative pressure states are still sometimes considered inaccessible by part of the scientific community. In this paper we show that any condensed phase can exist in absolute negative pressure regimes, while the same is not true for gas phases. We also demonstrate that such states are not merely possible but have, in spite of their metastability, been observed experimentally on numerous occasions. Moreover, physical properties of several substances and mixtures have already been determined in the stretched liquid phase at absolute negative pressures. Nevertheless, conceiving of and succeeding in an experiment that produces high tension in a liquid are rather difficult. Thus, equations of state and computer simulations are powerful tools for studying metastable liquids. By using a simple equation of state we show: how negative pressure regimes can be attained; the maximum intrinsic tension a liquid can sustain; and below which temperature a liquid can be found in this state. Experimental and theoretical work on liquids at negative pressures is reviewed. Furthermore, the similarities and differences between negative temperature and negative pressure states are demonstrated. Due to water's non-trivial behavior as well as its technological and scientific importance, it has been the most studied substance in metastable phenomena. We will thus devote particular attention to some of the rich features of its metastable phase diagram. Water belongs to a class of substances that presents density anomalies. We also show how the negative pressure region of the phase diagram proves to be paramount in understanding the unusual behavior of this class of substances.

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Section: Experimental Observations Of Negative Pressure In Liquidsmentioning

confidence: 98%

Thermodynamics of Negative Pressures in Liquids

Imre¹,

Martinás²,

Rebelo³

1998

Journal of Non-Equilibrium Thermodynamics

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“…[ 5,6 ] Homogeneous nucleation refers to the cavitation of a pure liquid arising from microscopic voids due to thermal fl uctuations. [ 7 ] Under ultrasonic irradiation the growth of bubbles in a liquid can occur through the following mechanisms: [ 8,9 ] (i) with high-intensity low frequency ultrasound (20 kHz), cavitation nuclei may grow rapidly through inertia effects and (ii) with low-intensity high frequency ultrasound ( > 50 kHz) a cavity may also grow, but slowly, this process is called rectifi ed diffusion. This occurs because the cavitie`s surface area is slightly greater during expansion than during compression.…”

Section: Mechanism Of Cavitation and Collapse Near Solid Surfacesmentioning

confidence: 99%

Ultrasonic Cavitation at Solid Surfaces

et al. 2011

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In spite of the great potential of applying high-intensity ultrasound, which enables high-temperature and high-pressure chemistry with a reactor near room temperature and ambient pressure, sonochemistry at solid surfaces is at a weak stage of understanding with regards to the development of new materials and composite nanostructures. The science towards a quantitative understanding is only now emerging. On the other hand, in many applications an ultrasonic bath is used without thinking of the mechanism. Often surfaces are exposed to ultrasound for cleaning. Since ultrasonic treatment is not an exotic process and applicable even on large scale in industrial manufacturing, controlling the process may lead to new applications making use of the specially designed surface. This review is intended to summarize recent progress in this field and to point out most promising directions of ultrasound application for the development of new materials with functional surfaces.

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“…As an example, we mention tensile instability, the experimentally observed behavior whereby several liquids appear to lose tensile strength upon being cooled (Briggs, 1950(Briggs, , 1951Sedgewick and Trevena, 1976). The relationship between tensile instability and density anomalies was first established by Speedy (1982a, b) for the specific case of water, and generalized by Debenedetti and D'Antonio (1986a, b) and D'Antonio and Debenedetti (1987) for any fluid.…”

Section: Introductionmentioning

confidence: 99%

Stability and tensile strength of liquids exhibiting density maxima

Debenedetti¹,

D’Antonio²

1988

AIChE Journal

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If a given liquid exhibits a density maximum anywhere in its phase diagram, thermodynamic consistency dictates that such a point cannot be isolated: a density maxima locus must necessarily exist. For a fluid that does not also exhibit density minima, the pressure‐temperature projection of such a locus is negatively sloped, and can only end at a stability limit. There exist two thermodynamically consistent ways in which such an intersection can occur, and they correspond, respectively, to the highest and lowest possible temperatures at which a liquid can exhibit a negative coefficient of thermal expansion. These theoretical predictions are confirmed by experimental observations. The existence of density anomalies anywhere in a liquid's phase diagram is shown to have a profound influence in determining the shape of such a fluid's stability boundary.

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Loss of tensile strength in liquids without property discontinuities: A thermodynamic analysis

Cited by 44 publications

References 7 publications

Thermodynamics of Negative Pressures in Liquids

Thermodynamics of Negative Pressures in Liquids

Ultrasonic Cavitation at Solid Surfaces

Stability and tensile strength of liquids exhibiting density maxima

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