scholarly journals Сравнительное исследование электрохромных свойств слоев полианилин-поликислота, нанесенных методами спрей-распыления и полива с добавлением углеродных нанотрубок

2022 ◽  
Vol 48 (2) ◽  
pp. 47
Author(s):  
А.А. Некрасов ◽  
О.Л. Грибкова ◽  
Т.В. Кривенко
Keyword(s):  
Spray Coating ◽  
Water Soluble ◽  
Coating Technology ◽  
Coating Method ◽  
Horizontal Substrate ◽  
Single Wall Nanotubes

The influence of coating method (spray-coating or drop-casting onto horizontal substrate) on the electrochromic characteristics of the layers of water-soluble polyaniline-polyacid complex was investigated. It was shown that in case of addition of single-wall nanotubes the polyaniline-polyacid layers prepared by scalable spray-coating technology demonstrate high coloration speed an electrochromic efficiency.

Investigation on the Performance of Al7075 Alloy Surface Repaired by Cold Spray Coating Technology

2021 ◽  
Vol 324 ◽  
pp. 9-14
Author(s):  
Koray Kiliçay ◽  
Salih Can Dayi
Keyword(s):  
Cold Spray ◽  
Wear Mechanism ◽  
Spray Coating ◽  
Alloy Surface ◽  
Wear Performance ◽  
Coating Technology ◽  
Average Coefficient ◽  
Coating Method ◽  
Cold Spray Coating ◽  
The Cost

Repairing different waste parts is an attractive issue due to the cost of repaired parts is much lower than the cost produced by conventional methods. In this study, the Al7075 aluminium alloy surface was repaired using the Ni-Zn-Al2O3 powder by the cold spray coating method. The microstructure, micro-hardness, and tribological performance of the repaired zone were determined. The microstructure of repaired zone consisted of ceramic Al2O3 particles embedded in the Ni and Zn metal matrix, similar to a lamellar structure. The average microhardness value of the repaired area was about 4.3% higher than the Al7075 substrate. Although the average coefficient of friction had increased in the repaired area, the wear rate had decreased approximately 1.3 times. As a result of the FESEM examination of the wear channels, the main wear mechanism of the Al7075 material was abrasive, while the main wear mechanism of the sample repaired with cold spray coating was determined as adhesive wear. Consequently, it increases the service life of the part, as the repaired zone with cold spray coating shows approximately 1.3 times better wear performance than Al7075.

Development of High Accuracy Spray Coating Method using Multi-layer Coat

2013 ◽  
Vol 133 (5) ◽  
pp. 170-176 ◽  
Author(s):  
Mikio Akamatsu ◽  
Kyohei Terao ◽  
Hidekuni Takao ◽  
Fusao Simokawa ◽  
Fumikazu Oohira ◽  
...  
Keyword(s):  
Spray Coating ◽  
High Accuracy ◽  
Coating Method

Disk supported carbon membrane via spray coating method: Effect of carbonization temperature and atmosphere

2018 ◽  
Vol 195 ◽  
pp. 295-304 ◽  
Author(s):  
N.H. Ismail ◽  
W.N.W. Salleh ◽  
N. Sazali ◽  
A.F. Ismail ◽  
N. Yusof ◽  
...  
Keyword(s):  
Spray Coating ◽  
Carbonization Temperature ◽  
Carbon Membrane ◽  
Method Effect ◽  
Coating Method

scholarly journals Compact and Low-Cost 3-D Printed Antennas Metalized Using Spray-Coating Technology for 5G mm-Wave Communication Systems

2018 ◽  
Vol 17 (11) ◽  
pp. 2051-2055 ◽  
Author(s):  
Shaker Alkaraki ◽  
Andre Sarker Andy ◽  
Yue Gao ◽  
Kin-Fai Tong ◽  
Zhinong Ying ◽  
...  
Keyword(s):  
Communication Systems ◽  
Low Cost ◽  
Spray Coating ◽  
Printed Antennas ◽  
Coating Technology

Using spray-coating method to form PVA coronary artery stents: structure and property evaluations

2018 ◽  
Vol 25 (4) ◽  
Author(s):  
Mei-Chen Lin ◽  
Ching-Wen Lou ◽  
Jan-Yi Lin ◽  
Ting An Lin ◽  
Shih-Ya Chou ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Spray Coating ◽  
Structure And Property ◽  
Coating Method ◽  
Coronary Artery Stents

MoS2 versatile spray-coating of 3D electrodes for the hydrogen evolution reaction

Nanoscale ◽  
2019 ◽  
Vol 11 (20) ◽  
pp. 9888-9895 ◽  
Author(s):  
Rui Gusmão ◽  
Zdeněk Sofer ◽  
Petr Marvan ◽  
Martin Pumera
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Spray Coating ◽  
Coating Method ◽  
3D Electrodes ◽  
3D Printed ◽  
Improved Performance ◽  
Carbon Based

A straightforward MoS2 spray-coating method was applied to rigid, flexible, porous and 3D-printed carbon-based surfaces, yielding improved performance for the hydrogen evolution reaction.

EFFECT OF P84 (BTDA-TDI/MDI) COMPOSITION TOWARDS THE PERFORMANCE OF THE DISK SUPPORTED CARBON MEMBRANE

2017 ◽  
Vol 79 (1-2) ◽  
Author(s):  
N. H. Ismail ◽  
W. N. W. Salleh ◽  
N. Sazali ◽  
M. A. Mohamed ◽  
N. Rosman ◽  
...  
Keyword(s):  
Room Temperature ◽  
Spray Coating ◽  
Gas Permeation ◽  
Membrane Properties ◽  
Polymer Composition ◽  
Polymeric Membrane ◽  
Separation Performance ◽  
Polymer Precursor ◽  
Carbon Membrane ◽  
Coating Method

Carbon membrane has attracted researchers’ attention as it is superior in terms of its gas separation performance. In this study, the composition of polymer precursor in the dope solution was investigated based on carbon membrane performance. P84 polyimide was chosen as the polymer precursor as it fulfils the requirement for carbon membrane properties. By varying the polymer precursor composition (6, 9, 12, and 15 wt.%), P84 was stirred in NMP solvent until homogenous solution was formed. Commercialised alumina disc was coated via spray coating method at 1 bar at room temperature. The disc supported polymeric membrane was carbonised at 700 °C under nitrogen (200 ml/min) with heating rate of 3 °C/min. The carbon membrane was analysed via SEM. Gas permeation tests were performed using pure O2 and N2 at 4 bar at room temperature. The selectivity of 3.7 was obtained using the disc supported carbon membrane for O2/N2. The optimum polymer composition in this study was obtained by 12 wt.% of P84.  

J2230202 Development of High Accuracy Spray Coating Method Using Low Viscosity Thick Film Photoresist

2014 ◽  
Vol 2014 (0) ◽  
pp. _J2230202--_J2230202-
Author(s):  
Kiyoshi FUJIWARA ◽  
Mikio AKAMATSU ◽  
Naoko KOUDA ◽  
Kyohei TERAO ◽  
Hidekuni TAKAO ◽  
...  
Keyword(s):  
Thick Film ◽  
Spray Coating ◽  
High Accuracy ◽  
Low Viscosity ◽  
Coating Method
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