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Nanoindentation based on force spectroscopy with an atomic force

Authors: Arroyave Franco, Mauricio;

Nanoindentation based on force spectroscopy with an atomic force

Abstract

Se presenta una implementación del método para el sangrado de superficie basado en Microscopía de Fuerza Atómica (AFM). La implementación se realizó utilizando la espectroscopía de fuerza (FS) generalmente habilitada en estos instrumentos que permiten el movimiento vertical de la punta AFM sin desplazamiento lateral. La determinación del factor sensible del voladizo AFM fue necesaria para conocer las fuerzas aplicadas en el proceso de sangría. Se obtuvieron curvas de fuerza versus profundidad similares a las curvas de sangría de detección de profundidad (DSI), sin embargo, estas no pueden usarse para diagnósticos mecánicos con el método de Oliver y Pharr. Se produjeron hendiduras de aproximadamente 1 nm y 50 nm de profundidad sobre silicio policristalino y aleación de aluminio 6261, respectivamente. Estas abren importantes aplicaciones en materiales nanotecnológicos.

An implementation of the method for surface indentation based on Atomic Force Microscopy (AFM), is presented. The implementation was done using the Force Spectroscopy (FS) usually enabled on this instruments which allow vertical movement of the AFM tip without lateral displacement. Determination of the sensitive factor of the AFM cantilever was necessary to know the applied forces in the indentation process. Force versus depth curves similar to Depth–Sensing Indentation (DSI) curves were obtained however these cannot be used for mechanical diagnostics with Oliver & Pharr method. Indentations about 1 nm and 50 nm of depth on polycrystalline Silicon and 6261 Aluminium alloy respectively were produced. These open important applicationsin materials nanotechnology.

Country
Colombia
Related Organizations
Keywords

Espectroscopía De Fuerza, Fuerza Atómica, Nanoindentación, Atomic Force, Force Spectroscopy, Nanoindentation

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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