Mechanics and geometry of nanoasperity contacts in organic fluids

Adrian B. Mann

doi:10.1063/1.1828234

Mechanics and geometry of nanoasperity contacts in organic fluids

Adrian B. Mann

School of Engineering, Materials Science & Engineering

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Nanoindentation measurements show that immersion of GaAs (100) in a long-chain alcohol causes an apparent increase in both the hardness and reduced elastic modulus of the GaAs. In contrast to the results for alcohol, immersion in distilled water has no discernable effect on the mechanical behavior of the surface. The results are explained by the ability of the long-chain alcohols to sustain elastic strains when they are in the highly confined geometry around a nanoasperity contact. This "elastic fluid" behavior modifies both the contact area and elastic properties of the nanoasperity contact.

Original language	English (US)
Article number	3
Pages (from-to)	5203-5205
Number of pages	3
Journal	Applied Physics Letters
Volume	85
Issue number	22
DOIs	https://doi.org/10.1063/1.1828234
State	Published - Nov 29 2004

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.1828234

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abstract = "Nanoindentation measurements show that immersion of GaAs (100) in a long-chain alcohol causes an apparent increase in both the hardness and reduced elastic modulus of the GaAs. In contrast to the results for alcohol, immersion in distilled water has no discernable effect on the mechanical behavior of the surface. The results are explained by the ability of the long-chain alcohols to sustain elastic strains when they are in the highly confined geometry around a nanoasperity contact. This {"}elastic fluid{"} behavior modifies both the contact area and elastic properties of the nanoasperity contact.",

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AB - Nanoindentation measurements show that immersion of GaAs (100) in a long-chain alcohol causes an apparent increase in both the hardness and reduced elastic modulus of the GaAs. In contrast to the results for alcohol, immersion in distilled water has no discernable effect on the mechanical behavior of the surface. The results are explained by the ability of the long-chain alcohols to sustain elastic strains when they are in the highly confined geometry around a nanoasperity contact. This "elastic fluid" behavior modifies both the contact area and elastic properties of the nanoasperity contact.

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Mechanics and geometry of nanoasperity contacts in organic fluids

Abstract

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