Low-temperature melting of silver nanoparticles in subcooled and saturated water

Soochan Lee; Patrick Phelan; Robert A. Taylor; Ravi Prasher; Lenore Dai

doi:10.1115/IMECE2014-36963

Low-temperature melting of silver nanoparticles in subcooled and saturated water

Soochan Lee, Patrick Phelan, Robert A. Taylor, Ravi Prasher, Lenore Dai

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

Continuous, laser-heated boiling experiments with silver nanofluids were conducted to identify the non-equilibrium melting behavior of silver nanoparticles in de-ionized (DI) water. Experimental results with Transmission Electron Microscopy (TEM) and Dynamic Light Scattering (DLS) suggest that surface melting of silver nanoparticles (which have a bulk melting point of 961°C) can occur at ambient pressure when particles are suspended in saturated, and even subcooled (e.g. < 100 °C) water due to the localized (volumetric) heat absorption. These findings are supported by calculating a temperature-dependent Hamaker constant of silver nanofluid - i.e. the interaction between interfaces (Ag-melt-water) at the melting temperature.

Original language	English (US)
Title of host publication	ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Publisher	American Society of Mechanical Engineers (ASME)
Volume	8B
DOIs	https://doi.org/10.1115/IMECE2014-36963
State	Published - 2014
Event	ASME 2014 International Mechanical Engineering Congress and Exposition, IMECE 2014 - Montreal, Canada Duration: Nov 14 2014 → Nov 20 2014

Other

Other	ASME 2014 International Mechanical Engineering Congress and Exposition, IMECE 2014
Country/Territory	Canada
City	Montreal
Period	11/14/14 → 11/20/14

ASJC Scopus subject areas

Mechanical Engineering

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10.1115/IMECE2014-36963

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Low-temperature melting of silver nanoparticles in subcooled and saturated water. / Lee, Soochan; Phelan, Patrick; Taylor, Robert A. et al.
ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). Vol. 8B American Society of Mechanical Engineers (ASME), 2014.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lee, S, Phelan, P, Taylor, RA, Prasher, R & Dai, L 2014, Low-temperature melting of silver nanoparticles in subcooled and saturated water. in ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). vol. 8B, American Society of Mechanical Engineers (ASME), ASME 2014 International Mechanical Engineering Congress and Exposition, IMECE 2014, Montreal, Canada, 11/14/14. https://doi.org/10.1115/IMECE2014-36963

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title = "Low-temperature melting of silver nanoparticles in subcooled and saturated water",

abstract = "Continuous, laser-heated boiling experiments with silver nanofluids were conducted to identify the non-equilibrium melting behavior of silver nanoparticles in de-ionized (DI) water. Experimental results with Transmission Electron Microscopy (TEM) and Dynamic Light Scattering (DLS) suggest that surface melting of silver nanoparticles (which have a bulk melting point of 961°C) can occur at ambient pressure when particles are suspended in saturated, and even subcooled (e.g. < 100 °C) water due to the localized (volumetric) heat absorption. These findings are supported by calculating a temperature-dependent Hamaker constant of silver nanofluid - i.e. the interaction between interfaces (Ag-melt-water) at the melting temperature.",

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T1 - Low-temperature melting of silver nanoparticles in subcooled and saturated water

AU - Lee, Soochan

AU - Phelan, Patrick

AU - Taylor, Robert A.

AU - Prasher, Ravi

AU - Dai, Lenore

PY - 2014

Y1 - 2014

N2 - Continuous, laser-heated boiling experiments with silver nanofluids were conducted to identify the non-equilibrium melting behavior of silver nanoparticles in de-ionized (DI) water. Experimental results with Transmission Electron Microscopy (TEM) and Dynamic Light Scattering (DLS) suggest that surface melting of silver nanoparticles (which have a bulk melting point of 961°C) can occur at ambient pressure when particles are suspended in saturated, and even subcooled (e.g. < 100 °C) water due to the localized (volumetric) heat absorption. These findings are supported by calculating a temperature-dependent Hamaker constant of silver nanofluid - i.e. the interaction between interfaces (Ag-melt-water) at the melting temperature.

AB - Continuous, laser-heated boiling experiments with silver nanofluids were conducted to identify the non-equilibrium melting behavior of silver nanoparticles in de-ionized (DI) water. Experimental results with Transmission Electron Microscopy (TEM) and Dynamic Light Scattering (DLS) suggest that surface melting of silver nanoparticles (which have a bulk melting point of 961°C) can occur at ambient pressure when particles are suspended in saturated, and even subcooled (e.g. < 100 °C) water due to the localized (volumetric) heat absorption. These findings are supported by calculating a temperature-dependent Hamaker constant of silver nanofluid - i.e. the interaction between interfaces (Ag-melt-water) at the melting temperature.

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BT - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)

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Low-temperature melting of silver nanoparticles in subcooled and saturated water

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