Effect of high-enthalpy atmospheric plasma spraying parameters on the mechanical and wear resistant properties of alumina ceramic coatings

2021 ◽  
pp. 127193
Author(s):  
Xian-Yu Jiang ◽  
Jing Hu ◽  
Shao-Liang Jiang ◽  
Xin Wang ◽  
Lin-Bo Zhang ◽  
...  
Keyword(s):  
Plasma Spraying ◽  
Ceramic Coatings ◽  
Alumina Ceramic ◽  
Atmospheric Plasma Spraying ◽  
Atmospheric Plasma ◽  
Wear Resistant ◽  
High Enthalpy ◽  
Spraying Parameters

scholarly journals Investigations of microstructure and selected mechanical properties of Al2O3 + 40 wt.% TiO2 coatings deposited by Atmospheric Plasma Spraying (APS)

2019 ◽  
Vol 91 (8) ◽  
pp. 7-11 ◽  
Author(s):  
Monika Michalak ◽  
Leszek Łatka ◽  
Paweł Sokołowski ◽  
Andrzej Ambroziak
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Plasma Spraying ◽  
Atmospheric Plasma Spraying ◽  
Atmospheric Plasma ◽  
Good Adhesion ◽  
Spraying Parameters ◽  
Tio2 Coatings

Atmospheric Plasma Spraying (APS) enables deposition of coatings from different materials, including those based on Al2O3 and TiO2. In this work, Al2O3 + 40 wt.% TiO2 coatings were tested. The relationships between mechanical properties, microstructure and spraying parameters (namely: spraying distance and torch scan velocity) were investigated. Commercial -45 + 5 μm powders in agglomerated as- produced state were sprayed onto the stainless steel 1.4301 substrates. The aim of the study was to determine the adhesion, microhardness and roughness of coatings but also to characterize their microstructure. It was observed that coatings sprayed from shorter distance were well melted and revealed good adhesion, but at the same time they were more porous and of lower microhardness than those deposited from the longer spraying distance.

Influence of high-enthalpy atmospheric plasma spraying power on oxidation resistance of ZrB2-LaF3 coatings

2021 ◽  
Vol 410 ◽  
pp. 126975
Author(s):  
Jing Hu ◽  
Peng Liu ◽  
Qi Li ◽  
Jianliang Xie ◽  
Shaoliang Jiang ◽  
...  
Keyword(s):  
Oxidation Resistance ◽  
Plasma Spraying ◽  
Atmospheric Plasma Spraying ◽  
Atmospheric Plasma ◽  
High Enthalpy

Investigations of Wettability of Wear Resistant Coatings Produced by Atmospheric Plasma Spraying

2017 ◽  
Vol 270 ◽  
pp. 230-235 ◽  
Author(s):  
Pavel Komarov ◽  
Ladislav Čelko ◽  
David Jech ◽  
Martin Papula ◽  
Karel Slámečka ◽  
...  
Keyword(s):  
Contact Angle ◽  
Plasma Spraying ◽  
Liquid Droplet ◽  
Critical Role ◽  
Atmospheric Plasma Spraying ◽  
Atmospheric Plasma ◽  
Metallographic Analysis ◽  
Water Contact ◽  
Wear Resistant ◽  
Wear Resistant Coatings

Changes in fluids contact angle in the interaction with materials surface can play a critical role in enhancement of hydro-machine components and pipelines efficiency and/or service lifetime. However most nowadays used materials and/or coatings are made from polymers or ceramic polymer composites produced by highly sophisticated and/or very expensive techniques. Unfortunately there are a lack of mechanical properties. With the aim to study the role of the surface topography on the water contact angle changes, the representatives of wear resistant coatings (WC10Co4Cr, Cr2O3+5SiO2+3TiO2and Al2O3) were produced by means of atmospheric plasma spraying. Wettability of the coatings surface was studied by adding the liquid droplet on as sprayed, grinded and polished coating's surface by measuring the changes of its contact angle. To estimate the coatings phase composition and topography XRD technique and optical profilometer were used. The contact angle of water was measured by sessile droplet method. To obtain the complex information of the cross-sectional coatings microstructure the conventional metallographic analysis approaches and optical microscopy were also used.

Investigation on the thermal properties of the multilayered ceramic coatings deposited using atmospheric plasma spraying

2015 ◽  
Vol 19 (sup8) ◽  
pp. S8-301-S8-305 ◽  
Author(s):  
R. Mohamed Iqbal ◽  
Mohd. F. Shabir ◽  
B. Dilip Jerold ◽  
S. Mohamed Abbas ◽  
S. Sathish ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Plasma Spraying ◽  
Ceramic Coatings ◽  
Atmospheric Plasma Spraying ◽  
Atmospheric Plasma
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