Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Improving the Efficiency of Air Plasma Spraying of Titanium Nitride Powder
View through CrossRef
The operation modes of a plasmatron for powder coating spraying have been studied. The plasmatron has a node of annular input and a gasdynamic focusing of the powder, and the outlet holes of the nozzle-anode are made in the form of rectangular narrowing-expanding channels (No.34334 RK: IPC H05H 1/42). The dynamics and trajectories of the powder particles in the plasmatron were investigated. The paper analyzes the influence of plasmatron arc current and working gas flow rate on the structure and properties of the obtained coatings. It is established that the phase composition of the sprayed coatings and the initial powder is the same: the main phase is the compound TiN, in addition, the structure contains the phase TiO2. The results of tribological tests of the coatings under dry friction conditions according to the ball-on-disk scheme are presented. Within the framework of this study, it can be said, from the point of view of obtaining denser coatings with high performance characteristics, that the optimal modes of plasma spraying of TiN powder are a current of 250 A and the working gas flow rate of argon 34 L/min.
Title: Improving the Efficiency of Air Plasma Spraying of Titanium Nitride Powder
Description:
The operation modes of a plasmatron for powder coating spraying have been studied.
The plasmatron has a node of annular input and a gasdynamic focusing of the powder, and the outlet holes of the nozzle-anode are made in the form of rectangular narrowing-expanding channels (No.
34334 RK: IPC H05H 1/42).
The dynamics and trajectories of the powder particles in the plasmatron were investigated.
The paper analyzes the influence of plasmatron arc current and working gas flow rate on the structure and properties of the obtained coatings.
It is established that the phase composition of the sprayed coatings and the initial powder is the same: the main phase is the compound TiN, in addition, the structure contains the phase TiO2.
The results of tribological tests of the coatings under dry friction conditions according to the ball-on-disk scheme are presented.
Within the framework of this study, it can be said, from the point of view of obtaining denser coatings with high performance characteristics, that the optimal modes of plasma spraying of TiN powder are a current of 250 A and the working gas flow rate of argon 34 L/min.
Related Results
Magnetohydrodynamics enhanced radio blackout mitigation system for spacecraft during planetary entries
Magnetohydrodynamics enhanced radio blackout mitigation system for spacecraft during planetary entries
(English) Spacecraft entering planetary atmospheres are enveloped by a plasma layer with high levels of ionization, caused by the extreme temperatures in the shock layer. The charg...
Pesticide drift: comparing spraying systems under variable field climatic conditions
Pesticide drift: comparing spraying systems under variable field climatic conditions
Safe pesticide application must ensure efficacy in pest control while minimizing environmental and human health risks. This study investigated pesticide potential drift by comparin...
Removal of toxic vapors by oxidation: Development of laboratory test procedures for in-duct air cleaning systems
Removal of toxic vapors by oxidation: Development of laboratory test procedures for in-duct air cleaning systems
Exposure to volatile organic compounds (VOC) in workplaces can cause acute effects such as irritation of the skin, the eyes, the mouth, and the nose. Some products may also cause c...
House-wall modification after indoor residual spraying in Shashogo district, southern Ethiopia
House-wall modification after indoor residual spraying in Shashogo district, southern Ethiopia
Abstract
Background: The indoor residual spraying has been a key national malaria prevention and control strategy in Ethiopia. However, there is a gap in monitoring and eva...
Improving efficiency of dye-sensitized solar cell by modification of titanium dioxide electrode
Improving efficiency of dye-sensitized solar cell by modification of titanium dioxide electrode
Dye-sensitized solar cell (DSSC) was constructed using titanium dioxide as anode electrode layer. titanium dioxide electrode layer was prepared from ultrasonic spray coating of tit...
Performance evaluation of graphite and titanium oxide powder mixed dielectric for electric discharge machining of Ti–6Al–4V
Performance evaluation of graphite and titanium oxide powder mixed dielectric for electric discharge machining of Ti–6Al–4V
AbstractTi–6Al–4V is the most commonly used titanium alloy in aerospace, marine, and biomedical applications. Due to the properties of poor machinability in conventional machining,...
Élimination des vapeurs toxiques par oxydation : développement de procédures d'évaluation des systèmes de purification de l'air des conduits de ventilation
Élimination des vapeurs toxiques par oxydation : développement de procédures d'évaluation des systèmes de purification de l'air des conduits de ventilation
L'exposition à des composés organiques volatils (COV) dans les lieux de travail peut avoir des effets aigus, notamment sous forme d'irritation de la peau, des yeux, de la bouche et...
Design of Intelligent Pineapple Spraying Device Based on Multi-Sensor Fusion
Design of Intelligent Pineapple Spraying Device Based on Multi-Sensor Fusion
Aiming at the problems of low efficiency, dangerous operation and uneven spraying in pineapple spraying technology, an intelligent spraying device based on multi-sensor fusion was ...