A novel method to map and quantify wear on a micro-scale

Gåhlin, Rickard; Jacobson, Staffan

doi:10.1016/s0043-1648(98)00287-7

Cited by 50 publications

(17 citation statements)

References 12 publications

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“…Imaging of the hardness of the carbon fibers embedded in softer epoxy [37,75]. nanoindentation capability includes the ability to perform scratches at various forces, rates, lengths and angles [35,56,102,118].…”

Section: Nanoindentation In-situ Loading and Investigation Of Cracksmentioning

confidence: 99%

“…scanning electron microscopy (SEM) and transmission electron microscopy (TEM)) in studies of metallic surfaces and micro-structures by providing reliable measurements at the nanometer scale [37,57,75,121,123]. AFM can also be used for nanoindentation to provide in situ imaging ability without moving the sample, switching tips, relocating the area for scanning, or using an entirely different instrument to image the indentation [35,56,71,102,118]. Force modulation microscopy (FMM) which is an extension of AFM imaging, is used extensively for the characterization of mechanical properties and in applications such as imaging composition changes in a composite material, analyzing polymer homogeneity, and detecting contaminants in manufacturing processes [3,27,99].…”

Section: Introductionmentioning

confidence: 99%

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A review of atomic force microscopy imaging systems: application to molecular metrology and biological sciences

2004

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Section: Nanoindentation In-situ Loading and Investigation Of Cracksmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A review of atomic force microscopy imaging systems: application to molecular metrology and biological sciences

2004

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“…Micro-wear measurements have been the objective of the rapid development of precise measuring tools following the introduction of AFM. [3][4][5][6][7] The knowledge of wear mechanisms at micro-and nanoscales could help to quantify the distribution of material loss during relative motion of surfaces. In fact, weighing the sample before and after the test has been the dominant wear quantification technique.…”

Section: Characterization Of Wear For Plla and Pmma At Micro-and Nanomentioning

confidence: 99%

Atomic force microscopy wear characterization of biomedical polymer coatings

et al. 2006

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Atomic force microscopy (AFM) has become established as a powerful and versatile tool for investigating local mechanical properties. In addition, through the AFM tip-sample interaction, it has become possible to study the effects of perturbations and modifications to the surface of soft samples, such as polymers. The accurate knowledge of their response to continuous AFM scanning could help to design new materials having desirable mechanical properties. In this paper, we present the results obtained by applying a new methodology to investigate wear properties on two different type of polymer, poly(methyl-methacrylate) and poly(L-lactic acid). These polymers have been widely employed in biomedical applications and have recently been considered as good candidates for coronary metallic stent coatings.Figure 3. Four image series for (left) PMMA and (right) PLLA (applied load 1 nN, pyramidal tip with nominal radius 40 nm) 264 L. Lazzeri et al.

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“…This method of stimulation is the basis of atomic force microscopy and is considered as the most e ective tool in surface topography nowadays. The main application of this tool is the study of surface properties and manipulation of materials in nanoscale, surface modeling, assembling nanoparticles, and their communication [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Vibration boundary control of Timoshenko micro-cantilever using piezoelectric actuators

et al. 2017

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Abstract. One of the methods of force/moment exertion on micro beams is utilizing piezoelectric actuators. In this paper, considering the e ects of the piezoelectric actuator on asymptotic stability achievement, the boundary control problem for the vibration of a clamped-free micro-cantilever Timoshenko beam is addressed. To achieve this purpose, the dynamic equations of the beam actuated by a piezoelectric layer laminated on one side of the beam are extracted. The control law was implemented so that vibrations of the beam could be decayed. This control law was achieved based on feedback of time derivatives of boundary states of the beam. The obtained control was applied in the form of piezoelectric voltage. To illustrate the impact of the proposed controller on the micro beam, the niteelement method and Timoshenko beam element were used, and then simulation operation was performed. The simulation shows that not only does this control voltage reduce the vibration of the beam, but also the mathematical proofs proposed in this article are precise and implementable.

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A novel method to map and quantify wear on a micro-scale

Cited by 50 publications

References 12 publications

A review of atomic force microscopy imaging systems: application to molecular metrology and biological sciences

A review of atomic force microscopy imaging systems: application to molecular metrology and biological sciences

Atomic force microscopy wear characterization of biomedical polymer coatings

Vibration boundary control of Timoshenko micro-cantilever using piezoelectric actuators

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