scholarly journals Determination of the attractive force, adhesive force, adhesion energy and Hamaker constant of soot particles generated from a premixed methane/oxygen flame by AFM

2018 ◽  
Vol 433 ◽  
pp. 450-457 ◽  
Author(s):  
Ye Liu ◽  
Chonglin Song ◽  
Gang Lv ◽  
Nan Chen ◽  
Hua Zhou ◽  
...  
Keyword(s):  
Adhesive Force ◽  
Adhesion Energy ◽  
Hamaker Constant ◽  
Attractive Force ◽  
Soot Particles ◽  
Oxygen Flame

Determination of Size of Fuel Droplets and Soot Particles in a Diesel Engine by Broadband Extinction and Scattering Spectroscopy

2001 ◽  
Vol 18 (5/6) ◽  
pp. 235-242 ◽  
Author(s):  
Simona Silvia Merola ◽  
Bianca M. Vaglieco ◽  
Silvano Consales ◽  
Felice E. Corcione ◽  
Giuseppe Formisano
Keyword(s):  
Diesel Engine ◽  
Soot Particles ◽  
Fuel Droplets

Stress and Adhesion Determination of a Wedged Iron Film System by Buckle Morphologies

2012 ◽  
Vol 457-458 ◽  
pp. 113-117
Author(s):  
Hong Zhou ◽  
Sen Jiang Yu ◽  
Yong Ju Zhang ◽  
Miao Gen Chen
Keyword(s):  
Magnetron Sputtering ◽  
Film Thickness ◽  
Glass Substrate ◽  
Silicone Oil ◽  
Adhesion Energy ◽  
Iron Film ◽  
Film System ◽  
Dc Magnetron Sputtering ◽  
Very High

By using the mobile property of silicone oil, a wedged iron (Fe) film system, deposited on glass substrate, has been prepared by dc-magnetron sputtering technique. The wedged Fe film is quenched by the silicone oil during deposition, and therefore contains a very high compressive stress, which is relieved by formation of a large number of telephone cord buckles. Both the buckle width l and maximum buckle deflection δ increase linearly with the film thickness, but the ratio of δ to l (l/δ ) decreases steadily. The internal stress and adhesion energy are estimated in the frame of continuum elastic theory.

scholarly journals Nanomechanics of few-layer materials: do individual layers slide upon folding?

2020 ◽  
Vol 11 ◽  
pp. 1801-1808
Author(s):  
Ronaldo J C Batista ◽  
Rafael F Dias ◽  
Ana P M Barboza ◽  
Alan B de Oliveira ◽  
Taise M Manhabosco ◽  
...  
Keyword(s):  
2D Materials ◽  
Adhesion Energy ◽  
Flexural Properties ◽  
2D Systems ◽  
Number Of Layers ◽  
Graphene Flakes ◽  
Theoretical Predictions ◽  
Tip Enhanced Raman Spectroscopy ◽  
Good Agreement

Folds naturally appear on nanometrically thin materials, also called “2D materials”, after exfoliation, eventually creating folded edges across the resulting flakes. We investigate the adhesion and flexural properties of single-layered and multilayered 2D materials upon folding in the present work. This is accomplished by measuring and modeling mechanical properties of folded edges, which allows for the experimental determination of the bending stiffness (κ) of multilayered 2D materials as a function of the number of layers (n). In the case of talc, we obtain κ ∝ n 3 for n ≥ 5, indicating no interlayer sliding upon folding, at least in this thickness range. In contrast, tip-enhanced Raman spectroscopy measurements on edges in folded graphene flakes, 14 layers thick, show no significant strain. This indicates that layers in graphene flakes, up to 5 nm thick, can still slip to relieve stress, showing the richness of the effect in 2D systems. The obtained interlayer adhesion energy for graphene (0.25 N/m) and talc (0.62 N/m) is in good agreement with recent experimental results and theoretical predictions. The obtained value for the adhesion energy of graphene on a silicon substrate is also in agreement with previous results.

Determination of Adhesion Energy of CNxThin Film on Silicon from Micro-Scratch Testing

2004 ◽  
Vol 47 (1) ◽  
pp. 130-137 ◽  
Author(s):  
ZHIQIANG LIU ◽  
JIAN SUN ◽  
JIA-DA WU ◽  
PEI-NAN WANG ◽  
WEIDIAN SHEN
Keyword(s):  
Adhesion Energy ◽  
Scratch Testing
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