Impact of Roughness on the Deformation and Adhesion of a Rough Metal and Smooth Mica in Contact

Levins, John M.; Vanderlick, T. Kyle

doi:10.1021/j100014a029

Cited by 36 publications

(53 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In light of our other observations that the spectrum for calibration filters and rough filters are nearly the same. (This observation holds for all spectra measured roughness of silver and gold films decreases over time in contact with mica (30,31), this is not surprising. It is probaat different r.) As we stated in Part II, one of our previous findings was that roughness at a metal/mica interface causes ble that compression of the spikes occurs upon silver/mica contact.…”

Section: Results: Characterization Of Silver/micasupporting

confidence: 73%

“…Over longer times, however, as the size of the dramatically affects their deformation and adhesion. We have used ESA-MBI to study this in detail, and it is the condensed liquid drop grew well beyond the region the contact, the area of deformed contact began to decrease back subject of another publication (31). to the area as measured in air (although the shift in peak profiles remained the same).…”

Section: Results: Characterization Of Silver/micamentioning

confidence: 99%

See 1 more Smart Citation

Characterization of the Interface between a Rough Metal and Smooth Mica in Contact

Levins

Vanderlick

1997

Journal of Colloid and Interface Science

View full text Add to dashboard Cite

Section: Results: Characterization Of Silver/micasupporting

confidence: 73%

Section: Results: Characterization Of Silver/micamentioning

confidence: 99%

Characterization of the Interface between a Rough Metal and Smooth Mica in Contact

Levins

Vanderlick

1997

Journal of Colloid and Interface Science

View full text Add to dashboard Cite

“…Additionally, there could be some degree of friction between the asperities that mutually aligned in a contact in CC. Dominance of the mechanical effects was previously found to strongly decrease or totally overcome the expected adhesive forces in numerous systems. ,,,,− …”

Section: Resultsmentioning

confidence: 96%

Surface Forces Apparatus Measurements of Interactions between Rough and Reactive Calcite Surfaces

et al. 2018

View full text Add to dashboard Cite

nm-Range forces acting between calcite surfaces in water affect macroscopic properties of carbonate rocks and calcite-based granular materials and are significantly influenced by calcite surface recrystallization. We suggest that the repulsive mechanical effects related to nm-scale surface recrystallization of calcite in water could be partially responsible for the observed decrease of cohesion in calcitic rocks saturated with water. Using the surface forces apparatus, we simultaneously followed the calcite reactivity and measured the forces in water in two surface configurations: between two rough calcite surfaces (CC) and between rough calcite and a smooth mica surface (CM). We used nm-scale rough, polycrystalline calcite films prepared by atomic layer deposition. We measured only repulsive forces in CC in CaCO-saturated water, which was related to roughness and possibly to repulsive hydration effects. Adhesive or repulsive forces were measured in CM in CaCO-saturated water depending on calcite roughness, and the adhesion was likely enhanced by electrostatic effects. The pull-off adhesive force in CM became stronger with time, and this increase was correlated with a decrease of roughness at contacts, the parameter which could be estimated from the measured force-distance curves. That suggested a progressive increase of real contact areas between the surfaces, caused by gradual pressure-driven deformation of calcite surface asperities during repeated loading-unloading cycles. Reactivity of calcite was affected by mass transport across nm- to μm-thick gaps between the surfaces. Major roughening was observed only for the smoothest calcite films, where gaps between two opposing surfaces were nm-thick over μm-sized areas and led to force of crystallization that could overcome confining pressures of the order of MPa. Any substantial roughening of calcite caused a significant increase of the repulsive mechanical force contribution.

show abstract

“…It is equally well suited for studies of adhesion and associated deformations of surfaces in contact (18,19). The SFA has been used to investigate a wide variety of interfacial systems (20,21), including monolayers and bilayers produced by LB deposition (22,23).…”

Section: Background: Establishing Penetration Geometriesmentioning

confidence: 99%

The Directional Dependence of Water Penetration into Langmuir–Blodgett Multilayers

Girard

Quinn

Vanderlick

1999

Journal of Colloid and Interface Science

View full text Add to dashboard Cite

Impact of Roughness on the Deformation and Adhesion of a Rough Metal and Smooth Mica in Contact

Cited by 36 publications

References 18 publications

Characterization of the Interface between a Rough Metal and Smooth Mica in Contact

Characterization of the Interface between a Rough Metal and Smooth Mica in Contact

Surface Forces Apparatus Measurements of Interactions between Rough and Reactive Calcite Surfaces

The Directional Dependence of Water Penetration into Langmuir–Blodgett Multilayers

Contact Info

Product

Resources

About