Facile preparation of super-oleophobic TiO2/SiO2 composite coatings by spraying method

2021 ◽  
Vol 159 ◽  
pp. 106411
Author(s):  
Yi Wu ◽  
Kai Yan ◽  
Guilin Xu ◽  
Chenguang Yang ◽  
Dong Wang
Keyword(s):  
Composite Coatings ◽  
Facile Preparation ◽  
Spraying Method

Temperature Influences on Preparation and Tribological Characteristics of Electrostatically Sprayed PTFE/PEEK Composite Coatings

2014 ◽  
Vol 1052 ◽  
pp. 91-96
Author(s):  
Jian Qun Zhang ◽  
Er Yang Ming ◽  
Chao Hui Zhang
Keyword(s):  
Experimental Method ◽  
Composite Coatings ◽  
Tribological Characteristics ◽  
Working Temperature ◽  
Preheating Temperature ◽  
Peek Composite ◽  
Powder Spraying ◽  
Spraying Method

Composite coatings of PTFE/PEEK (Polytetrafluoroethylene/Polyetheretherketone) were prepared by electrostatic powder spraying method. The factors were investigated on the preheating temperature and working temperature by the orthogonal experimental method. The results show that 250°C preheating temperature and 100°C working temperature are better conditions for playing good performance of PTFE/PEEK coatings.

Tribological performance of AlCrN–MoS2/PTFE hard-lubricant composite coatings

2019 ◽  
Vol 234 (9) ◽  
pp. 1355-1367
Author(s):  
Yang Lu ◽  
Jianxin Deng ◽  
Wenlong Song ◽  
Xuemu Li ◽  
Liangliang Zhang ◽  
...  
Keyword(s):  
Friction Coefficient ◽  
Molybdenum Disulfide ◽  
Tribological Properties ◽  
Adhesive Strength ◽  
Wear Track ◽  
Composite Coatings ◽  
Thermal Spraying ◽  
Tribological Performance ◽  
Ptfe Composite ◽  
Spraying Method

In order to improve the tribological performance of the physical vapor-deposited AlCrN coatings, molybdenum disulfide (MoS2)/poly tetra fluoroethylene (PTFE) coatings were fabricated on the AlCrN coatings surface through the thermal spraying method. The microstructure, adhesive strength, hardness, and tribological properties were investigated. Reciprocating sliding tests against SiC ball were executed with a ball-on-plate tribometer. Results showed that the adhesive strength between the AlCrN–MoS2/PTFE composite coatings and substrate was increased by about 15% compared with single AlCrN coatings. Compared with the single MoS2/PTFE coatings, the hardness of the AlCrN–MoS2/PTFE composite coatings surface was increased by about 15%. The MoS2/PTFE layer can availably reduce the friction coefficient of single AlCrN layer, and the AlCrN–MoS2/PTFE composite coatings exhibited the lowest and the most stable friction coefficient. In addition, the MoS2/PTFE layer existed on the wear track and accumulated on both the sides, which was the main reason that the friction coefficient was still lower compared with the samples without MoS2/PTFE coatings.

Tribological properties of NiAl matrix composite coatings synthesized by plasma spraying method

2017 ◽  
Vol 32 (9) ◽  
pp. 1674-1681 ◽  
Author(s):  
Bo Li ◽  
Yimin Gao ◽  
Minmin Han ◽  
Hongjian Guo ◽  
Junhong Jia ◽  
...  
Keyword(s):  
Plasma Spraying ◽  
Matrix Composite ◽  
Tribological Properties ◽  
Composite Coatings ◽  
Image Position ◽  
Spraying Method ◽  
Nial Matrix

Abstract

Facile preparation of a superamphiphobic fabric coating with hierarchical TiO2 particles

2020 ◽  
Vol 44 (44) ◽  
pp. 19192-19200
Author(s):  
Jixin Ai ◽  
Zhiguang Guo
Keyword(s):  
Chemical Stability ◽  
Composite Particles ◽  
Self Healing ◽  
Tio2 Particles ◽  
Healing Property ◽  
Facile Preparation ◽  
Spraying Method

A functional superamphiphobic fabric coating with hierarchical TiO2 composite particles and inorganic adhesives displays excellent mechanical robustness, good chemical stability and self-healing property by a simple spraying method.

scholarly journals Microstructure and Corrosion Resistance of Aluminium and Copper Composite Coatings Deposited by LPCS Method

2016 ◽  
Vol 61 (4) ◽  
pp. 1945-1952 ◽  
Author(s):  
M. Winnicki ◽  
M. Rutkowska-Gorczyca ◽  
A. Małachowska ◽  
T. Piwowarczyk ◽  
A. Ambroziak
Keyword(s):  
Corrosion Resistance ◽  
Working Conditions ◽  
Atmospheric Corrosion ◽  
Composite Coatings ◽  
Salt Spray ◽  
Cold Spraying ◽  
Chloride Ions ◽  
Copper Coatings ◽  
Copper Composite ◽  
Spraying Method

Abstract The paper presents the study of microstructure and corrosion resistance of composite coatings (Al+Al2O3 and Cu+Al2O3) deposited by Low Pressure Cold Spraying method (LPCS). The atmospheric corrosion resistance was examined by subjecting the samples to cyclic salt spray and Kesternich test chambers, with NaCl and SO2 atmospheres, respectively. The selected tests allowed reflecting the actual working conditions of the coatings. The analysis showed very satisfactory results for copper coatings. After eighteen cycles, with a total time of 432 hours, the samples show little signs of corrosion. Due to their greater susceptibility to chloride ions, aluminium coatings have significant corrosion losses.

A Fe-Based Amorphous Composite Coating on Al Plate by Electrothermal Explosion Spraying

2011 ◽  
Vol 688 ◽  
pp. 389-394 ◽  
Author(s):  
Yong Tian Wang ◽  
Wei Qiang Hu ◽  
Zong De Liu
Keyword(s):  
Wear Resistance ◽  
Composite Coating ◽  
Thin Plate ◽  
Composite Coatings ◽  
Thermal Spraying ◽  
Electrothermal Explosion ◽  
Multiple Length Scales ◽  
Materials Used ◽  
Technical Industry ◽  
Spraying Method

A Fe-based amorphous composite coating with different thickness on the Al thin plate is prepared by the electrothermal explosion spraying. Compared with other thermal spraying techniques, the electrothermal explosion spraying method can obtain a very high spraying velocity up to 4000m/s. The coating consists of the amorphous matrix and nanocrystal phases (α-Fe)，no laminar phenomenon is observed. The diffusion occurs between the substrate and the coating, showing a diffusion-metallurgical bond. The average hardness of coatings is 8 times larger than that of the Al substrate. The unique hierarchical microstructure at multiple length scales leads to the superior micro-hardness and wear resistance of the coating. The Fe-based composite coatings on Al thin plate have great potential as the promising lightweight wear-resistance structural materials used in the aero technical industry.

Temperature Influences on Frictional Coefficient of Electrostatically Sprayed PTFE/PEEK Composite Coatings

2014 ◽  
Vol 692 ◽  
pp. 277-281
Author(s):  
Jian Qun Zhang ◽  
Er Yang Ming ◽  
Chao Hui Zhang ◽  
Jie Xu ◽  
Hua Liu
Keyword(s):  
Experimental Method ◽  
Composite Coatings ◽  
Frictional Coefficient ◽  
Working Temperature ◽  
Preheating Temperature ◽  
Peek Composite ◽  
Powder Spraying ◽  
Spraying Method

Composite coatings of PTFE/PEEK (Polytetrafluoroethylene/Polyetheretherketone) were prepared by electrostatic powder spraying method. The frictional coefficient were investigated by the orthogonal experimental method. The results show that 250°C preheating temperature and 150°C working temperature are better conditions for frictional coefficient.

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