Development of Coating Process Technique for Anti-Fouling Electric Insulator

In order to improve the anti-fouling characteristics of the electric insulator for electric railway, a functional coating for preventing pollution was carried out on the surface of the T type post insulator and long rod insulator in the railway insulators. In order to ensure the durability of the thin film on the coated insulator surface, the coating was annealed at three different annealing cases by using a furnace. Case 1 is annealing treatment at 250°C and case 2 is annealing treatment at 400°C. Case 3 is the double annealing treatment (case 1 + case 2). The film Surface conductivity and anti-fouling characteristics of the insulators annealed at three temperature conditions were measured. It was confirmed that the insulator annealed in case 3 had both good conductivity and anti-fouling characteristics.

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Stoichiometric composition of thin-film surface structures and its influence on the functional characteristics as regards gyroscopic devices

Voprosy Materialovedeniya ◽

10.22349/1994-6716-2019-100-4-78-90 ◽

2020 ◽

pp. 78-90

Author(s):

M. A. Tit ◽

S. N. Belyaev

Keyword(s):

Thin Film ◽

Titanium Nitride ◽

Niobium Carbide ◽

Structural Phase ◽

Stoichiometric Composition ◽

Film Surface ◽

Surface Structures ◽

Functional Surface ◽

Base Surface ◽

Thin Film Surface

This article considers the research results of the effect of stoichiometry on the properties of titanium nitride thin-film coatings of the float and electrostatic gyroscopes. It presents the results of tests of such mechanical and optical characteristics of titanium nitride thin-film structures as microhardness, resistance to wear and friction, and image contrast determined by the reflection coefficients of a titanium nitride base surface and a raster pattern formed by local laser oxidation. When making a rotor of a cryogenic gyroscope, the prospects of use and technological methods for the formation of functional surface structures of niobium carbide and nitride are considered. It is shown that during the formation of coatings of the required composition, the most important is the thermodynamic estimation of possible interactions. These interactions allow us to accomplish the structural-phase modification of the material, which is determined by the complex of possible topochemical reactions leading to the formation of compounds, including non-stoichiometric composition.

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Computational fluid dynamics simulation of the roll‐to‐roll coating process for the production of thin film composite membranes including validation

Journal of Advanced Manufacturing and Processing ◽

10.1002/amp2.10076 ◽

2021 ◽

Author(s):

Florian Brennecke ◽

Juliana Clodt ◽

Jan Pohlmann ◽

Clarissa Abetz ◽

Torsten Brinkmann ◽

...

Keyword(s):

Thin Film ◽

Fluid Dynamics ◽

Composite Membranes ◽

Dynamics Simulation ◽

Coating Process ◽

Computational Fluid Dynamics Simulation ◽

Film Composite ◽

Roll Coating ◽

Thin Film Composite ◽

Roll To Roll

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Atomic Layer Deposition of Chalcogenides for Next-Generation Phase Change Memory

Journal of Materials Chemistry C ◽

10.1039/d1tc00186h ◽

2021 ◽

Author(s):

Yoon Kyeung Lee ◽

Chanyoung Yoo ◽

Woohyun Kim ◽

Jeongwoo Jeon ◽

Cheol Seong Hwang

Keyword(s):

Thin Film ◽

Atomic Layer Deposition ◽

Film Growth ◽

Phase Change Memory ◽

Film Surface ◽

Atomic Layer ◽

Thin Film Growth ◽

Growth Technique ◽

Layer Deposition ◽

Change Memory

Atomic layer deposition (ALD) is a thin film growth technique that uses self-limiting, sequential reactions localized at the growing film surface. It guarantees exceptional conformality on high-aspect-ratio structures and controllability...

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Nanoscale “Earthquake” Effect Induced by Thin Film Surface Acoustic Waves as a New Strategy for Ice Protection

Advanced Materials Interfaces ◽

10.1002/admi.202001776 ◽

2020 ◽

pp. 2001776

Author(s):

Deyu Yang ◽

Ran Tao ◽

Xianghui Hou ◽

Hamdi Torun ◽

Glen McHale ◽

...

Keyword(s):

Thin Film ◽

Acoustic Waves ◽

Surface Acoustic Waves ◽

Film Surface ◽

Earthquake Effect ◽

Thin Film Surface ◽

New Strategy

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Thin-film surface temperature variations during pulsed laser deposition

Physica C Superconductivity ◽

10.1016/s0921-4534(00)01274-0 ◽

2000 ◽

Vol 341-348 ◽

pp. 2389-2390

Author(s):

Cristina Buzea ◽

Kensuke Nakajima ◽

Tsutomu Yamashita

Keyword(s):

Thin Film ◽

Surface Temperature ◽

Pulsed Laser Deposition ◽

Pulsed Laser ◽

Film Surface ◽

Laser Deposition ◽

Temperature Variations ◽

Thin Film Surface

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Exotic Doping for Zno Thin Films: Possibility of Monolithic Optical Integrated Circuit

MRS Proceedings ◽

10.1557/proc-574-317 ◽

1999 ◽

Vol 574 ◽

Cited By ~ 7

Author(s):

Norifumi Fujimura ◽

Tamaki Shimura ◽

Toshifumi Wakano ◽

Atsushi Ashida ◽

Taichiro Ito

Keyword(s):

Thin Film ◽

Thin Films ◽

Nonlinear Optic ◽

Integrated Circuit ◽

Film Surface ◽

Zno Thin Films ◽

Process Window ◽

Electro Optic ◽

Film Substrate ◽

Optical Integrated Circuit

AbstractWe propose the application of ZnO:X (X = Li, Mg, N, In, Al, Mn, Gd, Yb etc.) films for a monolithic Optical Integrated Circuit (OIC). Since ZnO exhibits excellent piezoelectric effect and has also electro-optic and nonlinear optic effects and the thin films are easily obtained, it has been studied as one of the important thin film wave guide materials especially for an acoustooptic device[1]. In terms of electro-optic and nonlinear optic effects, however, LiNbO3 or LiTaO3 is superior to ZnO. The most important issue of thin film waveguide using such ferroelectrics is optical losses at the film/substrate interface and the film surface, because the process window to control the surface morphology is very narrow due to their high deposition temperature. Since ZnO can be grown at extremely low temperature, the roughness at the surface and the interface is expected to be minimized. This is the absolute requirement especially for waveguide using a blue or ultraviolet laser. Recently, lasing at the wavelength of ultraviolet, ferroelectric and antiferromagnetic behaviors of ZnO doped with various exotic elements (exotic doping) have been reported. This paper discusses the OIC application of ZnO thin films doped with exotic elements.

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Development of the Structural, Optical, and Electrical Properties of PEDOT:PSS Conducting Polymer Thin Film for Energy Applications

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.902.65 ◽

2021 ◽

Vol 902 ◽

pp. 65-70

Author(s):

Samar Aboulhadeed ◽

Mohsen Ghali ◽

Mohamad M. Ayad

Keyword(s):

Thin Film ◽

Thin Films ◽

Electrical Properties ◽

Conducting Polymer ◽

Film Surface ◽

Volume Ratio ◽

Transport Layer ◽

Electron Transport Layer ◽

Optical And Electrical Properties ◽

Energy Applications

We report on a development of the structural, optical and electrical properties of poly (3,4-ethylenedioxythiophene)-poly (styrenesulfonate) (PEDOT:PSS) conducting polymer thin films. The PEDOT:PSS thin films were deposited by a controlled thin film applicator and their physical properties were found to be effectively modified by isopropanol. The deposited films were investigated by several techniques including XRD, UV–Vis, SPM and Hall-effect. Interestingly, by optimizing the PEDOTS:PSS/ISO volume ratio (v:v), we find that the film charge carriers type can be switched from p to n-type with a high bulk carriers concentration reaching 6×1017 cm-3. Moreover, the film surface roughness becomes smoother and reaching a small value of only 1.9 nm. Such development of the PEDOT:PSS film properties makes it very promising to act as an electron transport layer for different energy applications.

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