Measurement of Mechanical Properties of Cantilever Shaped Materials. Finot, E. Sensors, 8(5):3497-3541, 5, 2008. Website abstract bibtex Microcantilevers were first introduced as imaging probes in Atomic Force
Microscopy (AFM) due to their extremely high sensitivity in measuring surface forces. The
versatility of these probes, however, allows the sensing and measurement of a host of
mechanical properties of various materials. Sensor parameters such as resonance frequency,
quality factor, amplitude of vibration and bending due to a differential stress can all be
simultaneously determined for a cantilever. When measuring the mechanical properties of
materials, identifying and discerning the most influential parameters responsible for the
observed changes in the cantilever response are important. We will, therefore, discuss the
effects of various force fields such as those induced by mass loading, residual stress, internal
friction of the material, and other changes in the mechanical properties of the
microcantilevers. Methods to measure variations in temperature, pressure, or molecular
adsorption of water molecules are also discussed. Often these effects occur simultaneously,
increasing the number of parameters that need to be concurrently measured to ensure the
reliability of the sensors. We therefore systematically investigate the geometric and
environmental effects on cantilever measurements including the chemical nature of the
underlying interactions. To address the geometric effects we have considered cantilevers
with a rectangular or circular cross section. The chemical nature is addressed by using
cantilevers fabricated with metals and/or dielectrics. Selective chemical etching, swelling or
changes in Young’s modulus of the surface were investigated by means of polymeric and
OPEN ACCESS
Sensors 2008, 8
3498
inorganic coatings. Finally to address the effect of the environment in which the cantilever
operates, the Knudsen number was determined to characterize the molecule-cantilever
collisions. Also bimaterial cantilevers with high thermal sensitivity were used to discern
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title = {Measurement of Mechanical Properties of Cantilever Shaped Materials},
type = {article},
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identifiers = {[object Object]},
keywords = {Microcantilever, mechanics, ageing, environment, s},
pages = {3497-3541},
volume = {8},
websites = {http://www.mdpi.org/sensors/list08.htm#s8053497},
month = {5},
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created = {2013-01-29T07:59:36.000Z},
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abstract = {Microcantilevers were first introduced as imaging probes in Atomic Force
Microscopy (AFM) due to their extremely high sensitivity in measuring surface forces. The
versatility of these probes, however, allows the sensing and measurement of a host of
mechanical properties of various materials. Sensor parameters such as resonance frequency,
quality factor, amplitude of vibration and bending due to a differential stress can all be
simultaneously determined for a cantilever. When measuring the mechanical properties of
materials, identifying and discerning the most influential parameters responsible for the
observed changes in the cantilever response are important. We will, therefore, discuss the
effects of various force fields such as those induced by mass loading, residual stress, internal
friction of the material, and other changes in the mechanical properties of the
microcantilevers. Methods to measure variations in temperature, pressure, or molecular
adsorption of water molecules are also discussed. Often these effects occur simultaneously,
increasing the number of parameters that need to be concurrently measured to ensure the
reliability of the sensors. We therefore systematically investigate the geometric and
environmental effects on cantilever measurements including the chemical nature of the
underlying interactions. To address the geometric effects we have considered cantilevers
with a rectangular or circular cross section. The chemical nature is addressed by using
cantilevers fabricated with metals and/or dielectrics. Selective chemical etching, swelling or
changes in Young’s modulus of the surface were investigated by means of polymeric and
OPEN ACCESS
Sensors 2008, 8
3498
inorganic coatings. Finally to address the effect of the environment in which the cantilever
operates, the Knudsen number was determined to characterize the molecule-cantilever
collisions. Also bimaterial cantilevers with high thermal sensitivity were used to discern},
bibtype = {article},
author = {Finot, Eric},
journal = {Sensors},
number = {5}
}
Downloads: 0
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