Fabrication and Characterization of Nano-Structuring Polymeric Surfaces for MEMS Applications

Author(s):  
Yusuke Takahashi ◽  
Kwok Siong Teh ◽  
Yen-Wen Lu

Using external stimuli to control surface properties, such as surface topology or wettability, has been of great interest. This paper presents the fabrication, mechanism, and analysis of an active method that modulates surface nano-topology and wettability of polymeric films. The polymeric film possesses the unique property of electrical potential-induced wettability conversion: when its doping level is electrically altered, the interstitial ions are incorporated or released, causing the polymer network to stretch and thereby changing its surface morphology.

2014 ◽  
Vol 970 ◽  
pp. 102-105
Author(s):  
Jian Wei Hoon ◽  
Kah Yoong Chan ◽  
Cheng Yang Low

In this work, silicon dioxide (SiO2) films were fabricated on indium tin oxide (ITO) coated glass substrates by radio frequency (RF) magnetron sputtering deposition technique. The deposition rate of the magnetron sputtered SiO2 films was investigated. The SiO2 films were characterized with the atomic force microscopy (AFM) for their surface topology. In addition, the electrical insulating strength of the magnetron sputtered SiO2 was examined.


2015 ◽  
Vol 4 (1) ◽  
pp. 9 ◽  
Author(s):  
Sahar Salehi ◽  
Mohammadhossein Fathi ◽  
ShaghayeghHaghjooy Javanmard ◽  
Farnaz Barneh ◽  
Mona Moshayedi

Author(s):  
L. S. Lin ◽  
K. P. Gumz ◽  
A. V. Karg ◽  
C. C. Law

Carbon and temperature effects on carbide formation in the carburized zone of M50NiL are of great importance because they can be used to control surface properties of bearings. A series of homogeneous alloys (with M50NiL as base composition) containing various levels of carbon in the range of 0.15% to 1.5% (in wt.%) and heat treated at temperatures between 650°C to 1100°C were selected for characterizations. Eleven samples were chosen for carbide characterization and chemical analysis and their identifications are listed in Table 1.Five different carbides consisting of M6C, M2C, M7C3 and M23C6 were found in all eleven samples examined as shown in Table 1. M6C carbides (with least carbon) were found to be the major carbide in low carbon alloys (<0.3% C) and their amounts decreased as the carbon content increased. In sample C (0.3% C), most particles (95%) encountered were M6C carbide with a particle sizes range between 0.05 to 0.25 um. The M6C carbide are enriched in both Mo and Fe and have a fee structure with lattice parameter a=1.105 nm (Figure 1).


2019 ◽  
Vol 35 (4) ◽  
pp. 475-484
Author(s):  
SHIVA ARUN ◽  
◽  
PRABHA BHARTIYA ◽  
AMREEN NAZ ◽  
SUDHEER RAI ◽  
...  

2019 ◽  
Vol 139 (11) ◽  
pp. 375-380
Author(s):  
Harutoshi Takahashi ◽  
Yuta Namba ◽  
Takashi Abe ◽  
Masayuki Sohgawa

2015 ◽  
Vol 135 (11) ◽  
pp. 474-475
Author(s):  
Koji Sugano ◽  
Ryoji Hiraoka ◽  
Toshiyuki Tsuchiya ◽  
Osamu Tabata

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