3115 Effect of CNT length and indentation depth on resilient behavior of CNT film synthesized by surface decomposition of SiC

2008 ◽  
Vol 2008.4 (0) ◽  
pp. 27-28
Author(s):  
Norihiro KIMURA
Author(s):  
M. L. Knotek

Modern surface analysis is based largely upon the use of ionizing radiation to probe the electronic and atomic structure of the surfaces physical and chemical makeup. In many of these studies the ionizing radiation used as the primary probe is found to induce changes in the structure and makeup of the surface, especially when electrons are employed. A number of techniques employ the phenomenon of radiation induced desorption as a means of probing the nature of the surface bond. These include Electron- and Photon-Stimulated Desorption (ESD and PSD) which measure desorbed ionic and neutral species as they leave the surface after the surface has been excited by some incident ionizing particle. There has recently been a great deal of activity in determining the relationship between the nature of chemical bonding and its susceptibility to radiation damage.


JOM ◽  
2021 ◽  
Author(s):  
Luis Zelaya-Lainez ◽  
Giuseppe Balduzzi ◽  
Olaf Lahayne ◽  
Kyojiro N. Ikeda ◽  
Florian Raible ◽  
...  

AbstractNanoindentation, laser ablation inductively coupled plasma mass spectroscopy and weighing ion-spiked organic matrix standards revealed structure-property relations in the microscopic jaw structures of a cosmopolitan bristle worm, Platynereis dumerilii. Hardness and elasticity values in the jaws’ tip region, exceeding those in the center region, can be traced back to more metal and halogen ions built into the structural protein matrix. Still, structure size appears as an even more relevant factor governing the hardness values measured on bristle worm jaws across the genera Platynereis, Glycera and Nereis. The square of the hardness scales with the inverse of the indentation depth, indicating a Nix-Gao size effect as known for crystalline metals. The limit hardness for the indentation depth going to infinity, amounting to 0.53 GPa, appears to be an invariant material property of the ion-spiked structural proteins likely used by all types of bristle worms. Such a metal-like biogenic material is a major source of bio-inspiration.


2021 ◽  
Vol 7 (2) ◽  
pp. 159
Author(s):  
Khaliq Ur Rehman ◽  
Mário Nuno Mata ◽  
José Moleiro Martins ◽  
Sabita Mariam ◽  
João Xavier Rita ◽  
...  

The primary objective of this research is to investigate the role of strategic human resource management practices in developing resilient organizational behavior. This research aims to test the mediating function of individual resilient behavior between strategic human resources management practices and resilient organizational behavior. Data was collected from 780 managerial level employees working in small and medium Chinese enterprises in Hubei Province through a self-administrated questionnaire. The Smart partial least square structural equation modeling technique was used for data analysis. The analysis showed a significant positive relationship among SHRM practices, employee resilient behavior, and resilient organizational behavior. Results also show that employee resilient behavior partially mediates the relationship between SHRM practices and resilient organizational behavior. Individual resilient behavior is needed when an organization is in crisis, restructuring, transformation, turbulent, and unfavorable conditions. Without individual resilient behavior, it is difficult for an organization to be resilient. Therefore, strategic human resource management practices are essential to develop an employee’s resilience. This research contributed to the body of knowledge by bringing new concepts together. The main contribution was testing the role of individual resilient behavior between strategic human resource management practices and resilient organizational behavior.


2014 ◽  
Vol 53 (6) ◽  
pp. 065601 ◽  
Author(s):  
Ryosuke Iguchi ◽  
Takahiro Kawamura ◽  
Yasuyuki Suzuki ◽  
Masato Inoue ◽  
Yoshihiro Kangawa ◽  
...  

1990 ◽  
Vol 5 (10) ◽  
pp. 2100-2106 ◽  
Author(s):  
W. R. LaFontaine ◽  
B. Yost ◽  
R. D. Black ◽  
C-Y. Li

Indentation load relaxation (ILR) experiments with indentation depths in the submicron range are described. Under appropriate conditions, the ILR data are found to yield flow curves of the same shape as those based on conventional load relaxation data. Variations in flow properties as a function of depth in submicron metal films deposited on a hard substrate are detected by the experiments described.


2008 ◽  
Vol 33-37 ◽  
pp. 919-924
Author(s):  
Chung Ming Tan ◽  
Yeau Ren Jeng ◽  
Yung Chuan Chiou

This paper employs static atomistic simulations to investigate the effect of a void on the nanoindentation of Cu(111). The simulations minimize the potential energy of the complete system via finite element formulation to identify the equilibrium configuration of any deformed state. The size and depth of the void are treated as two variable parameters. The numerical results reveal that the void disappears when the indentation depth is sufficiently large. A stress concentration is observed at the internal surface of the void in all simulations cases. The results indicate that the presence of a void has a significant influence on the nanohardness extracted from the nanoindentation tests.


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