Strain-Induced Nonlinear Frictional Behavior of Graphene Nanowall Films

2021 ◽  
Author(s):  
Zhe Ji ◽  
Qiang Lin ◽  
Zhewei Huang ◽  
Sulin Chen ◽  
Peng Gong ◽  
...  
Keyword(s):  
Frictional Behavior

scholarly journals Impact of Coseismic Frictional Melting on Particle Size, Shape Distribution and Chemistry of Experimentally-Generated Pseudotachylite

2020 ◽  
Vol 8 ◽  
Author(s):  
Leny Montheil ◽  
Virginia G. Toy ◽  
James M. Scott ◽  
Thomas M. Mitchell ◽  
David P. Dobson
Keyword(s):  
Particle Size ◽  
Host Rock ◽  
Fractal Dimensions ◽  
Rock Composition ◽  
Slip Rates ◽  
Shape Distribution ◽  
Frictional Behavior ◽  
Particle Size And Shape ◽  
Frictional Melting ◽  
Glass Compositions

In natural friction melts, or pseudotachylites, clast textures and glass compositions can influence the frictional behavior of faults hosting pseudotachylites, and are, in turn, sensitive to the processes involved in pseudotachylite formation. Quantification of these parameters in situations where the host rock composition and formation conditions are well-constrained, such as analogue experiments, may yield calibrations that can be employed in analysis of natural pseudotachylites. In this paper, we experimentally-generated pseudotachylites in granitoid rocks (tonalite and Westerly granite) at Pconf = 40 MPa and slip rates of ∼0.1 m s−1, comparable to the conditions under which natural pseudotachylite is known to form in Earth’s upper crust. We find variations in both clast textures and glass compositions that reflect formation processes, and probably influence the frictional behavior of similar natural faults hosting pseudotachylite. Quantification of particle size and shape distribution with a semi-automatic image analysis method, combined with analysis of glass and host-rock composition of these experimentally generated pseudotachylites, reveals that the textures of pseudotachylite material evolved by combinations of 1) comminution, 2) heterogeneous frictional flash melting, and 3) homogeneous (diffusive) clast melting and/or marginal decrepitation. Fractal dimensions of pseudotachylite-hosted clasts (D ∼ 3) that are greater than those of marginal fragmented host rock particles (gouge, D ∼ 2.4), reflect an increase of the intensity of comminution by slip localisation during a pre-melting phase. Chemical analyses demonstrate that these pseudotachylite glasses were generated by frictional flash melting, where host rock phases melt individually. Biotite is the least resistant to melting, feldspar intermediate, and quartz is the most resistant. The peudotachylite glass generated in these experiments has an alkaline composition, is depleted in SiO2 compared to the bulk host-rock, and shows heterogeneous compositions in a single sample related to proximity to host-rock minerals. The percentage contributions of host rock phases to the melt, calculated by a mixing model, shows that glass compositions are dominated by plagioclase and biotite. Within the melt, margins of clasts were dissolved uniformly by diffusion and/or affected by marginal decrepitation, resulting in convex and round shapes with convexities averaging ∼0.8 and circularities averaging ∼0.65.

Slip-stick Frictional Behavior of Wheat on Galvanized Steel

1996 ◽  
Vol 39 (2) ◽  
pp. 649-653 ◽  
Author(s):  
R. A. Bucklin ◽  
M. Molenda ◽  
T. C. Bridges ◽  
I. J. Ross
Keyword(s):  
Galvanized Steel ◽  
Frictional Behavior

Effect of surface topography on the frictional behavior at the micro/nano-scale

Wear ◽  
2003 ◽  
Vol 254 (10) ◽  
pp. 1019-1031 ◽  
Author(s):  
In-Ha Sung ◽  
Hyung-Suk Lee ◽  
Dae-Eun Kim
Keyword(s):  
Surface Topography ◽  
Frictional Behavior ◽  
Nano Scale ◽  
Effect Of Surface

scholarly journals Influence of environmental parameters on the frictional behavior of DLC coatings

1997 ◽  
Vol 94-95 ◽  
pp. 463-468 ◽  
Author(s):  
Y. Liu ◽  
A. Erdemir ◽  
E.I. Meletis
Keyword(s):  
Environmental Parameters ◽  
Dlc Coatings ◽  
Frictional Behavior

Frictional Behavior of Textile Fabrics Part I: Sliding Phenomena of Fabrics on Metallic and Polymeric Solid Surfaces

1997 ◽  
Vol 67 (11) ◽  
pp. 793-802 ◽  
Author(s):  
Luis Virto ◽  
Arun Naik
Keyword(s):  
Sliding Friction ◽  
Solid Material ◽  
Solid Surfaces ◽  
Friction Behavior ◽  
Stick Slip ◽  
Compression Load ◽  
Physical Description ◽  
Frictional Behavior ◽  
Textile Fabrics ◽  
Polymeric Solid

This paper presents experimental results on the sliding of fabrics on metallic and polymeric solid surfaces, showing the influence of the compression load at the solid-fabric interface and the nature of the solid material, and the effect of sliding speed on the sliding friction coefficient. At the same time, a physical description of the sliding phenomenon is given. On the basis of these observations, a theoretical approach is developed to explain the sliding friction behavior of fabrics on solid surfaces. Part II will deal with the waving and stick-slip phenomena, which are evident in the sliding process under certain conditions.

Frictional Behavior of Nylon

1966 ◽  
Vol 36 (3) ◽  
pp. 292-292
Author(s):  
A. Viswanathan
Keyword(s):  
Frictional Behavior

Tribological Behaviour of GFR Polymer Composites

2005 ◽  
Author(s):  
J. Quintelier ◽  
P. Samyn ◽  
P. De Baets ◽  
J. Degrieck
Keyword(s):  
Polymer Matrix Composites ◽  
Normal Load ◽  
Thin Polymer Film ◽  
Matrix Composites ◽  
Tribological Behaviour ◽  
Frictional Behavior ◽  
Glass Fiber Reinforced ◽  
Thin Polymer ◽  
Pin On Disc ◽  
The Coefficient Of Friction

On a Pin-on-Disc test rig with composite disc and steel pin tribological experiments were done on pultruded glass fiber reinforced polymer matrix composites plates. The wear and frictional behavior strongly depends on the structure. Also the normal load plays an important role in the frictional behavior, which is of greater importance than the speed. The formation of a thin polymer film onto the wear track results in a lowering of the coefficient of friction with 20%.

scholarly journals Frictional behavior of nanostructured carbon films

Friction ◽  
2013 ◽  
Vol 1 (1) ◽  
pp. 63-71 ◽  
Author(s):  
Dongfeng Diao ◽  
Chao Wang ◽  
Xue Fan
Keyword(s):  
Carbon Films ◽  
Nanostructured Carbon ◽  
Frictional Behavior

scholarly journals Frictional behavior of automotive brake materials under wet and dry conditions

1996 ◽  
Author(s):  
P.J. Blau ◽  
R.L. Martin ◽  
M.H. Weintraub ◽  
Ho Jang ◽  
W. Donlon
Keyword(s):  
Frictional Behavior ◽  
Dry Conditions ◽  
Automotive Brake
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