Rolling resistance moment of microspheres on surfaces

Peri, M. D. Murthy; Cetinkaya, Çetin

doi:10.1080/14786430500037122

Cited by 40 publications

(38 citation statements)

References 8 publications

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“…When the sphere is excited and the contact pinned, the centre of mass will oscillate with frequency f 0 set by (20). This frequency, 150 kHz for this particular PSLaluminum system, was found by [11][12][13] to compare very well with the experimental observations.…”

Section: Rocking Microspheresupporting

confidence: 72%

“…For microspheres, this frequency is typically of the order of 100 kHz, and has been observed experimentally [11][12][13]. We will discuss these experiments in section 3.1.3.…”

Section: Rocking Motionmentioning

confidence: 99%

“…Another interesting opportunity to study the critical displacement comes in the form of the experiments conducted by Peri and Cetinkaya [11][12][13], where rocking motions are excited in the adhesive contact of a PSL microsphere (21.4 µm in diameter) on various substrates. From the fact the microsphere oscillates in the lateral direction, it was inferred that the contact edges are effectively pinned (see section 2.5).…”

Section: Rocking Microspherementioning

confidence: 99%

“…Still, numerous authors have succeeded using very different techniques, including manipulating single [7,8] or chains of microspheres [9] with an atomic force microscope (AFM), resolving restructuring events in time [5,10], and non-contact techniques [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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Rolling friction of adhesive microspheres

Krijt¹,

Dominik²,

Tielens³

2014

J. Phys. D: Appl. Phys.

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The rolling friction of adhesive microspheres is an important quantity as it determines the strength and stability of larger aggregates. Current models predict rolling forces that are 1 to 2 orders of magnitude smaller than observed experimentally. Starting from the well-known Johnson-Kendall-Roberts (JKR) contact description, we derive an analytical theory for the rolling friction based on the concept of adhesion hysteresis, e.g. a difference in apparent surface energies for opening/closing cracks. We show how adhesion hysteresis causes the pressure distribution within the contact to become asymmetrical, leading to an opposing torque. Analytical expressions are derived relating the size of the hysteresis, the rolling torque, and the rolling displacement, ξ . We confirm the existence of a critical rolling displacement for the onset of rolling, the size of which is set by the amount of adhesion hysteresis and the size of the contact area. We demonstrate how the developed theory is able to explain the large rolling forces and particle-size dependence observed experimentally. Good agreement with experimental results is achieved for adhesion hysteresis values of ( γ /γ ) 3 for polystyrene, and ( γ /γ ) 0.5 for silicates, at crack propagation rates of 0.1 µm s −1 and 1-10 µm s −1 , respectively.

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Section: Rocking Microspheresupporting

confidence: 72%

“…For microspheres, this frequency is typically of the order of 100 kHz, and has been observed experimentally [11][12][13]. We will discuss these experiments in section 3.1.3.…”

Section: Rocking Motionmentioning

confidence: 99%

Section: Rocking Microspherementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Rolling friction of adhesive microspheres

Krijt¹,

Dominik²,

Tielens³

2014

J. Phys. D: Appl. Phys.

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“…This criterion assumes no resisting moment to rolling at the adhesion bond prior to rolling. In recent years, it has been demonstrated both analytically [11] and experimentally [12] that the adhesion bond between a microparticle and a surface indeed creates a resistance against the rolling initiation of the particle. Recently, the rolling resistance moment-based microparticle adhesion study in the vacuum chamber of a scanning electron microscope (SEM) with a custom-made nanomanipulator was reported [13].…”

Section: Introductionmentioning

confidence: 99%

Rolling Resistance Moment-Based Adhesion Characterization of Microspheres

Ding

Zhang

Cetinkaya

2008

The Journal of Adhesion

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A microsphere-surface adhesion characterization technique based on the rolling resistance moment of the adhesion bond is reported and demonstrated. With a nanomanipulation system, an increasing lateral pushing force is applied to a polymer microsphere adhered on a silicon substrate in the ambient environment, and the rolling displacement of the particle in response to the external force is recorded. The work of adhesion for polymer microspheres to the silicon substrate is extracted from the force-displacement curves. Unlike the traditional colloid probe technique where particles are glued to the cantilever beam and the normal detachment force as a function of the out-of-plane displacement is measured, in the current work the work of adhesion is directly determined from the measured rolling resistance moment and the proposed approach requires no prior knowledge of the particle diameter. In addition to the work of adhesion for the set of microspheres, the critical angles of rolling prior to rolling are estimated. The reported results form further experimental evidence for the existence of a rolling resistance moment.

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Characterization of Single Particle Adhesion: A Review of Recent Progress

Vahdat

Cetinkaya

2015

Particle Adhesion and Removal

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Rolling resistance moment of microspheres on surfaces

Cited by 40 publications

References 8 publications

Rolling friction of adhesive microspheres

Rolling friction of adhesive microspheres

Rolling Resistance Moment-Based Adhesion Characterization of Microspheres

Characterization of Single Particle Adhesion: A Review of Recent Progress

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