Electrical-driven delamination of flexible piezoelectric system and its applications in surface energy testing

2021 ◽  
pp. 1-12
Author(s):  
Luqiao Qi ◽  
Yan Shi ◽  
Cheng Huang ◽  
Zhi Li ◽  
Cun-Fa Gao
Keyword(s):  
Surface Energy ◽  
Piezoelectric Film ◽  
Maxwell Stress ◽  
Current Experiment ◽  
Electrical Load ◽  
Soft Substrate ◽  
Mechanics Model ◽  
Flexible Film ◽  
Film Substrate ◽  
Effect Of Surface

Abstract In the present work, a novel experiment for flexible piezoelectric system was introduced. The flexible piezoelectric film was spontaneously contact with the soft substrate conformably. And after driven by pure electrical load, the delamination between the film-substrate systems can be observed visually. By thoroughly analyses and eliminating the influence of gravity, the “force” that prevents the delamination points to the effect of surface energy. Apparently, the deformation of the flexible film is quite small, linear constitutive model still dominates the mechanics of the system in this scenario. Moreover, different from traditional piezoelectric system, the Maxwell stress cannot be neglected in current experiment. A simple mechanics model is derived in current work to reveal the mechanism behind the experiment.

Effect of Surface Energy on Shearing of Metal Asperities Contact at the Nanoscale

2020 ◽  
Vol 124 (50) ◽  
pp. 27436-27441
Author(s):  
Danyang Yu ◽  
Jin Wang ◽  
Ming Ma ◽  
Yonggang Meng
Keyword(s):  
Surface Energy ◽  
Effect Of Surface

Screening of the Effect of Surface Energy of Microchannels on Microfluidic Emulsification

Langmuir ◽  
2007 ◽  
Vol 23 (15) ◽  
pp. 8010-8014 ◽  
Author(s):  
Wei Li ◽  
Zhihong Nie ◽  
Hong Zhang ◽  
Chantal Paquet ◽  
Minseok Seo ◽  
...  
Keyword(s):  
Surface Energy ◽  
Effect Of Surface

scholarly journals A note on the effect of surface topography on adhesion of hard elastic rough bodies with low surface energy

2019 ◽  
Vol 28 (1) ◽  
pp. 8-12 ◽  
Author(s):  
Guido Violano ◽  
Giuseppe Demelio ◽  
Luciano Afferrante
Keyword(s):  
Surface Roughness ◽  
Surface Energy ◽  
Adhesive Contact ◽  
Low Surface Energy ◽  
Surface Gradient ◽  
Self Consistent ◽  
Remarkable Result ◽  
Roughness Amplitude ◽  
Adhesive Interactions ◽  
Effect Of Surface

AbstractAdhesion between bodies is strongly influenced by surface roughness. In this note, we try to clarify how the statistical properties of the contacting surfaces affect the adhesion under the assumption of long-range adhesive interactions.Specifically, we show that the adhesive interactions are influenced only by the roughness amplitude hrms, while the rms surface gradient h0rmsonly affects the non-adhesive contact force. This is a remarkable result if one takes into account the intrinsic difficulty in defining $h_{\mathrm{rms}}^{^{\prime }}.$Results are also corroborated by a comparison with self-consistent numerical calculations.

Effect of surface energy minima on the shape of self-induced SiGe nanoislands

2005 ◽  
Vol 242 (14) ◽  
pp. 2833-2837 ◽  
Author(s):  
A. M. Yaremko ◽  
V. M. Dzhagan ◽  
P. M. Lytvyn ◽  
V. O. Yukhymchuk ◽  
M. Ya. Valakh
Keyword(s):  
Surface Energy ◽  
Effect Of Surface
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