Inicio  /  Coatings  /  Vol: 9 Par: 11 (2019)  /  Artículo
ARTÍCULO
TITULO

Influence of Substrate Shape and Roughness on Coating Microstructure in Suspension Plasma Spray

Fernanda Caio and Christian Moreau    

Resumen

This study investigated the influence of the substrate shape and roughness on the microstructure of suspension plasma spray (SPS) coatings. For this purpose, an yttria-stabilized zirconia (YSZ) suspension was sprayed on flat and curved stainless-steel substrates by SPS. The suspension was composed of 20 wt.% YSZ particles in ethanol. After spraying, the morphology of the coatings was characterized by scanning electron microscopy (SEM). The results showed that the substrate shape influences the amount of coating material deposited and microstructural features of the coating. The amount of coating material deposited was seen to decrease as the radius of curvature decreased. Finally, the roughness was found to influence the formation of columnar structure.

 Artículos similares

       
 
Theocharis Chatzistathis, Christos Chatzissavvidis, Athanasios Papaioannou and Ioannis E. Papadakis    
The recent energy crisis has increased the cost of fertilization for olive growers. This is why alternative nutrient sources, such as manures and other organic materials, could be used to sustain olive production within the framework of sustainable agric... ver más
Revista: Applied Sciences

 
Gennaro Salvatore Ponticelli, Marianna Gallo, Ilaria Cacciotti, Oliviero Giannini, Stefano Guarino, Andrea Budelli and Roberto Nigro    
Modelling and predicting of the kinetics of microbial growth and metabolite production during the fermentation process for functional probiotics foods development play a key role in advancing and making such biotechnological processes suitable for large-... ver más
Revista: Applied Sciences

 
Jui-Ting Liang, Shao-Fu Chang, Cheng-Han Wu, Shih-Hsun Chen, Che-Wei Tsai, Kuei-Chung Cheng and Kim Hsu    
The aim of this article is to investigate the characterizations and formation mechanisms of cold-sprayed coatings using gas-atomized and electrolytic powders. The study highlights the importance of reaching the particles? critical velocity for optimal de... ver más
Revista: Coatings

 
Andreas P. Mayer, Elena A. Mayer, Markus Mayer, Werner Ruile, Vikrant Chauhan, Thomas Forster and Karl C. Wagner    
In the framework of electro-elasticity theory and the finite element method (FEM), a model is set up for the computation of quantities in surface acoustic wave (SAW) devices accounting for nonlinear effects. These include second-order and third-order int... ver más
Revista: Acoustics

 
Bowen Shi, Xiaokai Mu, Huan Zhan, Linhui Deng, Tao Li and Hongchao Zhang    
Almost all of the research on cracks in laser cladding is based, at present, on a horizontal substrate, which cannot be directly applied to prepare high performance coatings, especially high hardness coatings, on tilted substrate. In this work, the influ... ver más
Revista: Coatings